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.
Match metal grade, fastener size, thread type, backing support, bedding compound, and load direction before drilling into the boat.
Use marine-grade hardware and proper sealing practices. Confirm load ratings, material compatibility, corrosion risk, deck core protection, and manufacturer instructions before installation.
Popular Fastener & Mounting Searches
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.
Stainless Fasteners
Screws, bolts, nuts, washers, threaded rod, lock nuts, and specialty head styles for marine repair and upgrades.
Mounting Hardware
Brackets, bases, pads, backing plates, antenna mounts, rod holder mounts, and accessory supports.
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.
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"
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...
View full detailsPhillips Tapping Screw - Pan Head, #10 x 1-3/4"
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...
View full detailsPhillips Tapping Screws - Oval Head, #12 x 2-1/2"
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...
View full detailsPhillips Tapping Screw - Pan Head, #10 x 1-1/2"
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...
View full detailsBlind Rivet, 1/8" x 1/2"
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...
View full detailsPhillips Self Drilling Screw - Pan Head #10 x 1"
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...
View full detailsPhillips Tapping Screws - Flat Head, #8 x 1-1/4"
Phillips tapping screws with a flat head for secure, corrosion-resistant fastening. Key Features Phillips drive for easy installation Flat head de...
View full detailsPhillips Tapping Screw - Pan Head, #10 x 5/8"
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...
View full detailsPhillips Self Drilling Screw - Pan Head #10 x 3/4"
Phillips self drilling screws designed for fast installation—ideal for marine and general sheet-metal fastening tasks. This option features a pan h...
View full detailsPhillips Tapping Screws - Flat Head, #8 x 1/2"
Phillips tapping screws with a flat head design for #8 size applications, made from 18-8 stainless steel for corrosion resistance in marine environ...
View full detailsPhillips Tapping Screw - Pan Head, #10 x 3/4"
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...
View full detailsPhillips Tapping Screws - Flat Head, #8 x 1"
Reliable Phillips tapping screws for marine-style installations—made from 18-8 stainless steel for corrosion resistance. Key Features Phillips dri...
View full detailsPhillips Tapping Screws - Oval Head, #12 x 3/4"
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 ...
View full detailsPhillips Tapping Screws - Oval Head, #12 x 1-1/4"
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...
View full detailsPhillips Tapping Screws - Flat Head, #8 x 5/8"
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...
View full detailsPhillips Tapping Screws - Flat Head, #8 x 3/8"
18-8 Stainless Steel.
Phillips Tapping Screws - Oval Head, #12 x 2"
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...
View full detailsPhillips Tapping Screws - Flat Head, #8 x 3/4"
Phillips tapping screws with a flat head design in 18-8 stainless steel for fastening projects where corrosion resistance matters. Key Features Ph...
View full detailsPhillips Tapping Screws - Oval Head, #12 x 1"
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...
View full detailsPhillips Tapping Screws - Oval Head, #12 x 1-1/2"
Keep hardware fast and secure with these Phillips tapping screws designed for quick, self-starting fastening applications. Built in 18-8 stainless ...
View full detailsPhillips Tapping Screw - Pan Head, #10 x 1/2"
Secure fast, consistent panel and hardware attachments with this Phillips tapping screw designed for #10 applications and a 1/2" length, finished i...
View full detailsTee Nut - Stainless 5/16"-18
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...
View full detailsPhillips Tapping Screws - Flat Head, #14 x 2-1/2"
Phillips tapping screws with a flat head for fastening marine and general-purpose applications. Manufactured from 18-8 stainless steel for corrosio...
View full detailsTee Nut - Stainless 10-24
A stainless steel tee nut for fastening #10-24 hardware with secure, non-rotating grip in place. Key Features Stainless steel construction (18-8)....
View full detailsPhillips Tapping Screw - Pan Head, #8 x 1-1/2"
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...
View full detailsPhillips Tapping Screws - Oval Head, #10 x 3"
Phillips tapping screws with an oval head in 18-8 stainless steel for durable fastening in marine applications. SKU: 50-00816. Key Features Philli...
View full detailsNylon Insert Locknut - Stainless 5/8-11
Secure your 5/8-11 threaded connections with this stainless nylon insert locknut designed to help resist loosening from vibration. Key Features St...
View full detailsPhillips Tapping Screw - Pan Head, #8 x 2"
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...
View full detailsPhillips Tapping Screws - Flat Head, #6 x 1-1/2"
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...
View full detailsPhillips Tapping Screws - Flat Head, #14 x 3"
Phillips tapping screws with a flat head for fastening sheet metal and other applications where a countersunk, flush finish is preferred. Built in ...
View full detailsNylon Insert Locknut - Stainless 1/2-13
Secure threaded connections with this stainless nylon insert locknut. The nylon insert helps resist loosening from vibration—ideal for marine hardw...
View full detailsPhillips Tapping Screws - Oval Head, #10 x 2-1/2"
Seachoice Phillips tapping screws with an oval head for #10 applications—made from 18-8 stainless steel for corrosion resistance in marine environm...
View full detailsPhillips Tapping Screws - Flat Head, #6 x 3/4"
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...
View full detailsPhillips Tapping Screws - Flat Head, #6 x 1-1/4"
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...
View full detailsPhillips Tapping Screws - Flat Head, #14 x 2"
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 ...
View full detailsPhillips Tapping Screw - Pan Head, #8 x 3/4"
Use this Phillips tapping screw for secure, corrosion-resistant fastening in marine and general mounting applications. Key Features Phillips pan h...
View full detailsPhillips Tapping Screws - Flat Head, #6 x 1"
Phillips tapping screws designed for fastening into prepared materials with a flat head profile and corrosion-resistant 18-8 stainless steel constr...
View full detailsPhillips Tapping Screw - Pan Head, #8 x 1-1/4"
Secure lightweight marine and shop assemblies with this Phillips tapping screw—pan head design for easy installation and a neat finished look. Key ...
View full detailsNylon Insert Locknut - Stainless 7/16-14
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...
View full detailsPhillips Tapping Screw - Pan Head, #8 x 1"
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...
View full detailsNylon Insert Locknut - Stainless 3/8-16
A stainless steel nylon insert locknut designed for 3/8-16 threads, helping resist loosening under vibration. Key Features Stainless steel constru...
View full detailsNylon Insert Locknut - Stainless 5/16-18
Secure connections with this stainless nylon insert locknut sized for 5/16-18 threads. The nylon insert adds resistance to loosening from vibration...
View full detailsPhillips Tapping Screws - Oval Head, #10 x 2"
18-8 Stainless Steel.
Phillips Tapping Screws - Flat Head, #14 x 1-3/4"
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...
View full detailsPhillips Tapping Screws - Flat Head, #6 x 1/2"
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...
View full detailsPhillips Tapping Screws - Oval Head, #10 x 1-1/2"
18-8 Stainless Steel.
Phillips Tapping Screws - Flat Head, #14 x 1-1/2"
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...
View full detailsPhillips Tapping Screws - Flat Head, #6 x 5/8"
18-8 Stainless Steel.