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Celebrating over 50 years of Trusted Marine Service
Over 50 years of Trusted Marine Service

Fasteners & Mounting

Marine Hardware & Installation

Marine Fasteners, Mounting Hardware & Installation Supplies

Shop marine-grade screws, bolts, nuts, washers, brackets, backing plates, rivets, mounting pads, sealants, thread lockers, and anti-seize for secure hardware installations in saltwater environments.

Install Check

Match metal grade, fastener size, thread type, backing support, bedding compound, and load direction before drilling into the boat.

Shop Backing Plates

Use marine-grade hardware and proper sealing practices. Confirm load ratings, material compatibility, corrosion risk, deck core protection, and manufacturer instructions before installation.

Fitment

Choose the Right Metal, Size, and Support

Marine fasteners need to match the job. Consider stainless grade, length, diameter, head style, thread type, washer size, backing plate needs, and whether the hardware is loaded in pull, shear, or vibration.

Corrosion

Saltwater Hardware Needs Material Discipline

316 stainless is commonly preferred for saltwater exposure, while 304 stainless may suit freshwater or less demanding areas. Isolate dissimilar metals where needed and use anti-seize on stainless threads to reduce galling.

If a fastener is structural or safety-critical, confirm the correct grade, torque, backing, and installation method.

MNT

Mounting Hardware

Brackets, bases, pads, backing plates, antenna mounts, rod holder mounts, and accessory supports.

BED

Bedding & Bonding

Sealants, adhesives, thread lockers, anti-seize, and bedding compounds help hardware stay secure and watertight.

Install Notes

Seal Holes and Spread Loads

Fastener selection is only part of the job. Hardware installed through decks, cabins, rails, transoms, or cored panels needs the right pilot hole, sealant, backing, washer, and torque.

Pilot holesUse the correct drill size for the fastener, substrate, and thread engagement.
Bedding compoundSeal penetrations to keep water out of cores, cabins, lockers, and electronics areas.
Backing platesSpread loads for cleats, davits, ladders, rails, seats, and high-load deck hardware.
Thread careUse thread locker or anti-seize where appropriate, especially on stainless-to-stainless threads.

Inspection

Replace Corroded, Loose, or Mismatched Hardware

Check for rust streaks, loose brackets, elongated holes, cracked sealant, missing washers, galvanic corrosion, stripped threads, and water intrusion around mounted hardware.

Projects

Good Hardware Makes Upgrades Last

Electronics, antennas, cleats, rod holders, seats, speakers, lights, ladders, hatches, and deck fittings all rely on correctly chosen mounting hardware.

For heavy or safety-related gear, do a dry fit, mark hole locations carefully, and confirm access to the backside before drilling.

FAQ

Marine Fastener Questions

Should I use 304 or 316 stainless fasteners on a boat?

316 stainless is usually preferred for saltwater and exposed marine use because it has stronger corrosion resistance. 304 stainless can be suitable for freshwater or less exposed applications.

Why do stainless fasteners seize or gall?

Stainless threads can gall when tightened under friction, especially stainless-on-stainless. Anti-seize, correct thread engagement, and careful tightening can help reduce the risk.

When do I need a backing plate?

Use backing plates when hardware carries significant load, such as cleats, rails, ladders, davits, seats, and deck fittings. Backing plates spread load and help prevent crushing or pull-through.

Should deck fasteners be sealed?

Yes. Holes through decks, cabins, and cored panels should be sealed with the correct marine bedding compound to help prevent leaks and core damage.

Ready for a Stronger Install?

Shop Marine Fasteners, Brackets, Backing Plates & Sealants

Search by fastener type, material, size, head style, mounting application, sealant need, bracket type, or installation project.

Filters

Phillips Tapping Screw - Pan Head, #10 x 1-1/4"

Original price $61.49 - Original price $61.49
Original price
$61.49
$61.49 - $61.49
Current price $61.49
Item locally warehoused

A Phillips pan-head tapping screw sized #10 x 1-1/4" for fastening and tapping into suitable materials, made from 18-8 stainless steel. Key Feature...

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Original price $61.49 - Original price $61.49
Original price
$61.49
$61.49 - $61.49
Current price $61.49

Phillips Tapping Screw - Pan Head, #10 x 1-3/4"

Original price $44.79 - Original price $44.79
Original price
$44.79
$44.79 - $44.79
Current price $44.79
Item locally warehoused

Phillips tapping screw with a pan head design in #10 x 1-3/4" size, made from 18-8 stainless steel for reliable fastening in marine environments. K...

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Original price $44.79 - Original price $44.79
Original price
$44.79
$44.79 - $44.79
Current price $44.79

Phillips Tapping Screws - Oval Head, #12 x 2-1/2"

Original price $57.39 - Original price $57.39
Original price
$57.39
$57.39 - $57.39
Current price $57.39
Item locally warehoused

Phillips tapping screws with an oval head in #12 x 2-1/2" size. Made from 18-8 stainless steel for corrosion-resistant, marine-appropriate fastenin...

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Original price $57.39 - Original price $57.39
Original price
$57.39
$57.39 - $57.39
Current price $57.39

Phillips Tapping Screw - Pan Head, #10 x 1-1/2"

Original price $68.99 - Original price $68.99
Original price
$68.99
$68.99 - $68.99
Current price $68.99
Item locally warehoused

Phillips pan head tapping screw in #10 size and 1-1/2" length, made from 18-8 stainless steel for corrosion-resistant fastening in marine and outdo...

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Original price $68.99 - Original price $68.99
Original price
$68.99
$68.99 - $68.99
Current price $68.99

Blind Rivet, 1/8" x 1/2"

Original price $130.49 - Original price $130.49
Original price
$130.49
$130.49 - $130.49
Current price $130.49
Item locally warehoused

Use this blind rivet to fasten two materials securely from one side—ideal for marine hardware and other applications where the back side isn’t acce...

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Original price $130.49 - Original price $130.49
Original price
$130.49
$130.49 - $130.49
Current price $130.49

Phillips Self Drilling Screw - Pan Head #10 x 1"

Original price $50.79 - Original price $50.79
Original price
$50.79
$50.79 - $50.79
Current price $50.79
Item locally warehoused

Phillips drive self-drilling pan head screw in #10 x 1" size, made from 410 stainless steel. Use it for secure fastening tasks where you need the s...

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Original price $50.79 - Original price $50.79
Original price
$50.79
$50.79 - $50.79
Current price $50.79

Phillips Tapping Screws - Flat Head, #8 x 1-1/4"

Original price $37.29 - Original price $37.29
Original price
$37.29
$37.29 - $37.29
Current price $37.29
Item locally warehoused

Phillips tapping screws with a flat head for secure, corrosion-resistant fastening. Key Features Phillips drive for easy installation Flat head de...

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Original price $37.29 - Original price $37.29
Original price
$37.29
$37.29 - $37.29
Current price $37.29

Phillips Tapping Screw - Pan Head, #10 x 5/8"

Original price $41.19 - Original price $41.19
Original price
$41.19
$41.19 - $41.19
Current price $41.19
Item locally warehoused

Phillips tapping screw with a pan head design—#10 x 5/8"—made from 18-8 stainless steel for reliable corrosion resistance in marine hardware applic...

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Original price $41.19 - Original price $41.19
Original price
$41.19
$41.19 - $41.19
Current price $41.19

Phillips Self Drilling Screw - Pan Head #10 x 3/4"

Original price $52.69 - Original price $52.69
Original price
$52.69
$52.69 - $52.69
Current price $52.69
Item locally warehoused

Phillips self drilling screws designed for fast installation—ideal for marine and general sheet-metal fastening tasks. This option features a pan h...

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Original price $52.69 - Original price $52.69
Original price
$52.69
$52.69 - $52.69
Current price $52.69

Phillips Tapping Screws - Flat Head, #8 x 1/2"

Original price $15.89 - Original price $15.89
Original price
$15.89
$15.89 - $15.89
Current price $15.89
Item locally warehoused

Phillips tapping screws with a flat head design for #8 size applications, made from 18-8 stainless steel for corrosion resistance in marine environ...

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Original price $15.89 - Original price $15.89
Original price
$15.89
$15.89 - $15.89
Current price $15.89

Phillips Tapping Screw - Pan Head, #10 x 3/4"

Original price $60.99 - Original price $60.99
Original price
$60.99
$60.99 - $60.99
Current price $60.99
Item locally warehoused

Secure a clean, flush-looking installation with these Seachoice Phillips tapping screws featuring a pan head design and #10 x 3/4" size for general...

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Original price $60.99 - Original price $60.99
Original price
$60.99
$60.99 - $60.99
Current price $60.99

Phillips Tapping Screws - Flat Head, #8 x 1"

Original price $34.49 - Original price $34.49
Original price
$34.49
$34.49 - $34.49
Current price $34.49
Item locally warehoused

Reliable Phillips tapping screws for marine-style installations—made from 18-8 stainless steel for corrosion resistance. Key Features Phillips dri...

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Original price $34.49 - Original price $34.49
Original price
$34.49
$34.49 - $34.49
Current price $34.49

Phillips Tapping Screws - Oval Head, #12 x 3/4"

Original price $54.29 - Original price $54.29
Original price
$54.29
$54.29 - $54.29
Current price $54.29
Item locally warehoused

Install fast with Phillips tapping screws designed for secure bite in metal—featuring an oval head for a clean finish and 18-8 stainless steel for ...

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Original price $54.29 - Original price $54.29
Original price
$54.29
$54.29 - $54.29
Current price $54.29

Phillips Tapping Screws - Oval Head, #12 x 1-1/4"

Original price $36.89 - Original price $36.89
Original price
$36.89
$36.89 - $36.89
Current price $36.89
Item locally warehoused

Phillips tapping screws with an oval head in #12 x 1-1/4" size, made from 18-8 stainless steel for corrosion-resistant fastening in marine and gene...

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Original price $36.89 - Original price $36.89
Original price
$36.89
$36.89 - $36.89
Current price $36.89

Phillips Tapping Screws - Flat Head, #8 x 5/8"

Original price $20.79 - Original price $20.79
Original price
$20.79
$20.79 - $20.79
Current price $20.79
Item locally warehoused

Dependable fasteners for marine and general hardware applications—Phillips tapping screws with a flat head in #8 x 5/8" size, made from 18-8 stainl...

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Original price $20.79 - Original price $20.79
Original price
$20.79
$20.79 - $20.79
Current price $20.79

Phillips Tapping Screws - Flat Head, #8 x 3/8"

Original price $19.79 - Original price $19.79
Original price
$19.79
$19.79 - $19.79
Current price $19.79
Item locally warehoused

18-8 Stainless Steel.

Original price $19.79 - Original price $19.79
Original price
$19.79
$19.79 - $19.79
Current price $19.79

Phillips Tapping Screws - Oval Head, #12 x 2"

Original price $45.69 - Original price $45.69
Original price
$45.69
$45.69 - $45.69
Current price $45.69
Item locally warehoused

Stock up on reliable marine-grade self-tapping hardware with these Phillips tapping screws in an oval head style—made for secure fastening in a wid...

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Original price $45.69 - Original price $45.69
Original price
$45.69
$45.69 - $45.69
Current price $45.69

Phillips Tapping Screws - Flat Head, #8 x 3/4"

Original price $21.99 - Original price $21.99
Original price
$21.99
$21.99 - $21.99
Current price $21.99
Item locally warehoused

Phillips tapping screws with a flat head design in 18-8 stainless steel for fastening projects where corrosion resistance matters. Key Features Ph...

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Original price $21.99 - Original price $21.99
Original price
$21.99
$21.99 - $21.99
Current price $21.99

Phillips Tapping Screws - Oval Head, #12 x 1"

Original price $72.89 - Original price $72.89
Original price
$72.89
$72.89 - $72.89
Current price $72.89
Item locally warehoused

Phillips tapping screws with an oval head in #12 x 1" size, made from 18-8 stainless steel for durable corrosion resistance in demanding environmen...

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Original price $72.89 - Original price $72.89
Original price
$72.89
$72.89 - $72.89
Current price $72.89

Phillips Tapping Screws - Oval Head, #12 x 1-1/2"

Original price $47.89 - Original price $47.89
Original price
$47.89
$47.89 - $47.89
Current price $47.89
Item locally warehoused

Keep hardware fast and secure with these Phillips tapping screws designed for quick, self-starting fastening applications. Built in 18-8 stainless ...

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Original price $47.89 - Original price $47.89
Original price
$47.89
$47.89 - $47.89
Current price $47.89

Phillips Tapping Screw - Pan Head, #10 x 1/2"

Original price $41.49 - Original price $41.49
Original price
$41.49
$41.49 - $41.49
Current price $41.49
Item locally warehoused

Secure fast, consistent panel and hardware attachments with this Phillips tapping screw designed for #10 applications and a 1/2" length, finished i...

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Original price $41.49 - Original price $41.49
Original price
$41.49
$41.49 - $41.49
Current price $41.49

Tee Nut - Stainless 5/16"-18

Original price $29.59 - Original price $29.59
Original price
$29.59
$29.59 - $29.59
Current price $29.59
Item locally warehoused

Tee Nut - Stainless 5/16"-18 is a stainless steel tee nut threaded 5/16"-18 for use in marine and general fastening applications. Key Features Sta...

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Original price $29.59 - Original price $29.59
Original price
$29.59
$29.59 - $29.59
Current price $29.59

Phillips Tapping Screws - Flat Head, #14 x 2-1/2"

Original price $109.39 - Original price $109.39
Original price
$109.39
$109.39 - $109.39
Current price $109.39
Item locally warehoused

Phillips tapping screws with a flat head for fastening marine and general-purpose applications. Manufactured from 18-8 stainless steel for corrosio...

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Original price $109.39 - Original price $109.39
Original price
$109.39
$109.39 - $109.39
Current price $109.39

Tee Nut - Stainless 10-24

Original price $68.59 - Original price $68.59
Original price
$68.59
$68.59 - $68.59
Current price $68.59
Item locally warehoused

A stainless steel tee nut for fastening #10-24 hardware with secure, non-rotating grip in place. Key Features Stainless steel construction (18-8)....

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Original price $68.59 - Original price $68.59
Original price
$68.59
$68.59 - $68.59
Current price $68.59

Phillips Tapping Screw - Pan Head, #8 x 1-1/2"

Original price $48.39 - Original price $48.39
Original price
$48.39
$48.39 - $48.39
Current price $48.39
Item locally warehoused

Phillips tapping screws with a pan head profile in #8 size and 1-1/2" length—made from 18-8 stainless steel for reliable corrosion resistance in ma...

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Original price $48.39 - Original price $48.39
Original price
$48.39
$48.39 - $48.39
Current price $48.39

Phillips Tapping Screws - Oval Head, #10 x 3"

Original price $60.99 - Original price $60.99
Original price
$60.99
$60.99 - $60.99
Current price $60.99
Item locally warehoused

Phillips tapping screws with an oval head in 18-8 stainless steel for durable fastening in marine applications. SKU: 50-00816. Key Features Philli...

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Original price $60.99 - Original price $60.99
Original price
$60.99
$60.99 - $60.99
Current price $60.99

Nylon Insert Locknut - Stainless 5/8-11

Original price $51.49 - Original price $51.49
Original price
$51.49
$51.49 - $51.49
Current price $51.49
Item locally warehoused

Secure your 5/8-11 threaded connections with this stainless nylon insert locknut designed to help resist loosening from vibration. Key Features St...

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Original price $51.49 - Original price $51.49
Original price
$51.49
$51.49 - $51.49
Current price $51.49

Phillips Tapping Screw - Pan Head, #8 x 2"

Original price $33.89 - Original price $33.89
Original price
$33.89
$33.89 - $33.89
Current price $33.89
Item locally warehoused

Phillips tapping screw with a pan head design in 18-8 stainless steel. Sized for #8 applications and a 2" length (SKU 50-00874). Key Features Phil...

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Original price $33.89 - Original price $33.89
Original price
$33.89
$33.89 - $33.89
Current price $33.89

Phillips Tapping Screws - Flat Head, #6 x 1-1/2"

Original price $29.59 - Original price $29.59
Original price
$29.59
$29.59 - $29.59
Current price $29.59
Item locally warehoused

Phillips tapping screws with a flat head in #6 size and 1-1/2" length—made from 18-8 stainless steel for durable, corrosion-resistant fastening. Ke...

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Original price $29.59 - Original price $29.59
Original price
$29.59
$29.59 - $29.59
Current price $29.59

Phillips Tapping Screws - Flat Head, #14 x 3"

Original price $100.59 - Original price $100.59
Original price
$100.59
$100.59 - $100.59
Current price $100.59
Item locally warehoused

Phillips tapping screws with a flat head for fastening sheet metal and other applications where a countersunk, flush finish is preferred. Built in ...

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Original price $100.59 - Original price $100.59
Original price
$100.59
$100.59 - $100.59
Current price $100.59

Nylon Insert Locknut - Stainless 1/2-13

Original price $66.49 - Original price $66.49
Original price
$66.49
$66.49 - $66.49
Current price $66.49
Item locally warehoused

Secure threaded connections with this stainless nylon insert locknut. The nylon insert helps resist loosening from vibration—ideal for marine hardw...

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Original price $66.49 - Original price $66.49
Original price
$66.49
$66.49 - $66.49
Current price $66.49

Phillips Tapping Screws - Oval Head, #10 x 2-1/2"

Original price $56.39 - Original price $56.39
Original price
$56.39
$56.39 - $56.39
Current price $56.39
Item locally warehoused

Seachoice Phillips tapping screws with an oval head for #10 applications—made from 18-8 stainless steel for corrosion resistance in marine environm...

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Original price $56.39 - Original price $56.39
Original price
$56.39
$56.39 - $56.39
Current price $56.39

Phillips Tapping Screws - Flat Head, #6 x 3/4"

Original price $17.79 - Original price $17.79
Original price
$17.79
$17.79 - $17.79
Current price $17.79
Item locally warehoused

Phillips tapping screws with a flat head in 18-8 stainless steel—made for secure fastening in marine and metal applications. Key Features Flat hea...

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Original price $17.79 - Original price $17.79
Original price
$17.79
$17.79 - $17.79
Current price $17.79

Phillips Tapping Screws - Flat Head, #6 x 1-1/4"

Original price $30.09 - Original price $30.09
Original price
$30.09
$30.09 - $30.09
Current price $30.09
Item locally warehoused

Phillips tapping screws with a flat head design, sized #6 x 1-1/4" and made from 18-8 stainless steel for reliable corrosion resistance in marine a...

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Original price $30.09 - Original price $30.09
Original price
$30.09
$30.09 - $30.09
Current price $30.09

Phillips Tapping Screws - Flat Head, #14 x 2"

Original price $77.59 - Original price $77.59
Original price
$77.59
$77.59 - $77.59
Current price $77.59
Item locally warehoused

Phillips tapping screws with a flat head in #14 x 2" size, made from 18-8 stainless steel for corrosion-resistant fastening in marine and hardware ...

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Original price $77.59 - Original price $77.59
Original price
$77.59
$77.59 - $77.59
Current price $77.59

Phillips Tapping Screw - Pan Head, #8 x 3/4"

Original price $36.29 - Original price $36.29
Original price
$36.29
$36.29 - $36.29
Current price $36.29
Item locally warehoused

Use this Phillips tapping screw for secure, corrosion-resistant fastening in marine and general mounting applications. Key Features Phillips pan h...

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Original price $36.29 - Original price $36.29
Original price
$36.29
$36.29 - $36.29
Current price $36.29

Phillips Tapping Screws - Flat Head, #6 x 1"

Original price $18.99 - Original price $18.99
Original price
$18.99
$18.99 - $18.99
Current price $18.99
Item locally warehoused

Phillips tapping screws designed for fastening into prepared materials with a flat head profile and corrosion-resistant 18-8 stainless steel constr...

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Original price $18.99 - Original price $18.99
Original price
$18.99
$18.99 - $18.99
Current price $18.99

Phillips Tapping Screw - Pan Head, #8 x 1-1/4"

Original price $44.49 - Original price $44.49
Original price
$44.49
$44.49 - $44.49
Current price $44.49
Item locally warehoused

Secure lightweight marine and shop assemblies with this Phillips tapping screw—pan head design for easy installation and a neat finished look. Key ...

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Original price $44.49 - Original price $44.49
Original price
$44.49
$44.49 - $44.49
Current price $44.49

Nylon Insert Locknut - Stainless 7/16-14

Original price $43.89 - Original price $43.89
Original price
$43.89
$43.89 - $43.89
Current price $43.89
Item locally warehoused

Secure assemblies with a nylon insert locknut made from 18-8 stainless steel. Thread size: 7/16-14. Key Features Nylon insert locknut helps resist...

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Original price $43.89 - Original price $43.89
Original price
$43.89
$43.89 - $43.89
Current price $43.89

Phillips Tapping Screw - Pan Head, #8 x 1"

Original price $37.39 - Original price $37.39
Original price
$37.39
$37.39 - $37.39
Current price $37.39
Item locally warehoused

Phillips tapping screw with a pan head profile in #8 size and 1" length, made from 18-8 stainless steel for corrosion resistance in marine and outd...

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Original price $37.39 - Original price $37.39
Original price
$37.39
$37.39 - $37.39
Current price $37.39

Nylon Insert Locknut - Stainless 3/8-16

Original price $40.99 - Original price $40.99
Original price
$40.99
$40.99 - $40.99
Current price $40.99
Item locally warehoused

A stainless steel nylon insert locknut designed for 3/8-16 threads, helping resist loosening under vibration. Key Features Stainless steel constru...

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Original price $40.99 - Original price $40.99
Original price
$40.99
$40.99 - $40.99
Current price $40.99

Nylon Insert Locknut - Stainless 5/16-18

Original price $26.19 - Original price $26.19
Original price
$26.19
$26.19 - $26.19
Current price $26.19
Item locally warehoused

Secure connections with this stainless nylon insert locknut sized for 5/16-18 threads. The nylon insert adds resistance to loosening from vibration...

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Original price $26.19 - Original price $26.19
Original price
$26.19
$26.19 - $26.19
Current price $26.19

Phillips Tapping Screws - Oval Head, #10 x 2"

Original price $47.59 - Original price $47.59
Original price
$47.59
$47.59 - $47.59
Current price $47.59
Item locally warehoused

18-8 Stainless Steel.

Original price $47.59 - Original price $47.59
Original price
$47.59
$47.59 - $47.59
Current price $47.59

Phillips Tapping Screws - Flat Head, #14 x 1-3/4"

Original price $67.99 - Original price $67.99
Original price
$67.99
$67.99 - $67.99
Current price $67.99
Item locally warehoused

Phillips tapping screws with a flat head design in #14 x 1-3/4" size, made from 18-8 stainless steel for corrosion-resistant fastening in marine an...

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Original price $67.99 - Original price $67.99
Original price
$67.99
$67.99 - $67.99
Current price $67.99

Phillips Tapping Screws - Flat Head, #6 x 1/2"

Original price $14.59 - Original price $14.59
Original price
$14.59
$14.59 - $14.59
Current price $14.59
Item locally warehoused

Phillips tapping screws with a flat head, made for #6 size fastening at 1/2" length in 18-8 stainless steel. Key Features Phillips drive for posit...

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Original price $14.59 - Original price $14.59
Original price
$14.59
$14.59 - $14.59
Current price $14.59

Phillips Tapping Screws - Oval Head, #10 x 1-1/2"

Original price $68.99 - Original price $68.99
Original price
$68.99
$68.99 - $68.99
Current price $68.99
Item locally warehoused

18-8 Stainless Steel.

Original price $68.99 - Original price $68.99
Original price
$68.99
$68.99 - $68.99
Current price $68.99

Phillips Tapping Screws - Flat Head, #14 x 1-1/2"

Original price $47.99 - Original price $47.99
Original price
$47.99
$47.99 - $47.99
Current price $47.99
Item locally warehoused

SeaChoice Phillips Tapping Screws with a flat head design in #14 x 1-1/2" size, made from 18-8 stainless steel (SKU: 50-00753). Key Features Phill...

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Original price $47.99 - Original price $47.99
Original price
$47.99
$47.99 - $47.99
Current price $47.99

Phillips Tapping Screws - Flat Head, #6 x 5/8"

Original price $16.19 - Original price $16.19
Original price
$16.19
$16.19 - $16.19
Current price $16.19
Item locally warehoused

18-8 Stainless Steel.

Original price $16.19 - Original price $16.19
Original price
$16.19
$16.19 - $16.19
Current price $16.19