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Celebrating 50 years of Trusted Marine Service
50 years of Trusted Marine Service

Fasteners & Mounting

Marine Fasteners & Mounting Hardware - Stainless Steel Screws, Bolts & Brackets

Premium marine-grade fasteners and mounting hardware designed for the harsh saltwater environment. Our comprehensive selection of corrosion-resistant fasteners, brackets, and mounting solutions ensures secure, long-lasting installations for all your marine projects, from deck hardware installation to electronics mounting and equipment upgrades.

Stainless Steel Fasteners

  • Marine Screws - 304 and 316 stainless steel wood screws, sheet metal screws, and self-tapping screws
  • Machine Screws & Bolts - Hex head bolts, carriage bolts, socket head cap screws, and machine screws
  • Nuts & Washers - Hex nuts, lock nuts, nylon insert nuts, flat washers, and lock washers
  • Threaded Rod - All-thread rod for custom mounting applications
  • Specialty Fasteners - Pan head, flat head, oval head, and button head configurations

Mounting Brackets & Hardware

  • Electronics Brackets - Mounting brackets for GPS, fishfinders, radios, and navigation equipment
  • Antenna Mounts - Rail mounts, deck mounts, and adjustable antenna brackets
  • Rod Holder Mounts - Bases and brackets for fishing rod holders
  • Accessory Brackets - Universal mounting brackets for lights, speakers, and equipment
  • Adjustable Mounts - Swivel and tilt brackets for flexible positioning

Deck Hardware Mounting

  • Backing Plates - Stainless steel and aluminum backing plates for load distribution
  • Mounting Pads - Teak and synthetic pads for cleat and hardware mounting
  • Deck Bases - Flush-mount and surface-mount bases for various hardware
  • Through-Deck Fittings - Sealed fittings for watertight deck penetrations

Rivets & Blind Fasteners

  • Pop Rivets - Aluminum and stainless steel blind rivets for one-sided installations
  • Rivet Tools - Hand riveters and pneumatic rivet guns
  • Structural Rivets - High-strength rivets for critical applications

Adhesives & Sealants

  • Marine Adhesives - Epoxy, polyurethane, and methacrylate adhesives for bonding
  • Sealants - Silicone, polysulfide, and polyurethane sealants for watertight seals
  • Thread Lockers - Anaerobic adhesives to prevent fastener loosening
  • Anti-Seize - Lubricants to prevent galling and corrosion on threads

Key Features

  • Corrosion-Resistant - 304 and 316 stainless steel resists saltwater corrosion and oxidation
  • Marine-Grade Quality - Specifically designed for harsh marine environments
  • Complete Selection - Full range of sizes and types for any marine application
  • Professional Results - Quality fasteners ensure secure, reliable installations
  • Long Service Life - Superior materials provide years of trouble-free performance

Essential hardware for boat maintenance, repairs, and upgrades. From simple screw replacements to complex mounting installations, proper marine-grade fasteners ensure your equipment stays securely attached and corrosion-free. Choose 316 stainless steel for maximum corrosion resistance in saltwater applications, or 304 stainless for freshwater and less demanding environments.

Filters

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Mercury MerCruiser 1/4-28 Hex Nut - 11-8267139

$0.00 - $0.00
$0.00
$3.81
$3.81 - $3.81
$3.81
in stock

The Mercury MerCruiser Quicksilver 11-8267139 is a genuine Mercury Marine OEM .250-28 hex nut used as diagram-specific fastening hardware across se...

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$0.00 - $0.00
$0.00
$3.81
$3.81 - $3.81
$3.81

Volvo Penta Split Pin - 3885524

$0.00 - $0.00
$0.00
$4.20
$4.20 - $4.20
$4.20
in stock

The Volvo Penta 3885524 is a genuine Volvo Penta OEM split pin, also commonly referred to as a cotter pin, used as diagram-specific retaining hardw...

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$0.00 - $0.00
$0.00
$4.20
$4.20 - $4.20
$4.20

Volvo Penta Lock Nut - 990990

$0.00 - $0.00
$0.00
$4.90
$4.90 - $4.90
$4.90
in stock

The Volvo Penta 990990 is a genuine Volvo Penta OEM lock nut used as diagram-specific structural hardware on select Volvo Penta diesel engine, ster...

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$0.00 - $0.00
$0.00
$4.90
$4.90 - $4.90
$4.90

Mercury MerCruiser Anchor Pin Flat Washer - 12-85058

$0.00 - $0.00
$0.00
$6.14
$6.14 - $6.14
$6.14
in stock

The Mercury MerCruiser Quicksilver 12-85058 is a genuine Mercury Marine OEM flat washer used in select MerCruiser sterndrive, transom, trim, and Me...

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$0.00 - $0.00
$0.00
$6.14
$6.14 - $6.14
$6.14

Mercury MerCruiser Flat Washer 2-Pack - 12-44164

$0.00 - $0.00
$0.00
$6.14
$6.14 - $6.14
$6.14
Only 2 left!

The Mercury MerCruiser Quicksilver 12-44164 is a genuine Mercury Marine OEM flat washer used in select MerCruiser sterndrive, transom, and engine a...

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$0.00 - $0.00
$0.00
$6.14
$6.14 - $6.14
$6.14

Mercury MerCruiser Propeller Shaft Toothed Lockwasher - 13-423511

$0.00 - $0.00
$0.00
$4.41
$4.41 - $4.41
$4.41
Only 2 left!

The Mercury MerCruiser Quicksilver 13-423511 is a genuine Mercury Marine OEM toothed lockwasher used in select Mercury, Mariner, and MerCruiser pro...

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$0.00 - $0.00
$0.00
$4.41
$4.41 - $4.41
$4.41

Mercury Mariner M8 Mounting Stud - 16-424632

$0.00 - $0.00
$0.00
$25.06
$25.06 - $25.06
$25.06
Only 2 left!

The Mercury MerCruiser Quicksilver 16-424632 is a genuine Mercury Marine OEM metric mounting stud used as diagram-specific bracket and component ha...

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$0.00 - $0.00
$0.00
$25.06
$25.06 - $25.06
$25.06

Mercury MerCruiser - Pinion Nut - 11-35921

$0.00 - $0.00
$0.00
$11.99
$11.99 - $11.99
$11.99
Only 2 left!

The Mercury MerCruiser Quicksilver Pinion Nut 11-35921 is an OEM lower-unit gearcase fastener used to secure the pinion gear to the driveshaft in c...

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$0.00 - $0.00
$0.00
$11.99
$11.99 - $11.99
$11.99

Mercury MerCruiser - Propeller Tab Washer - 14-34817

$0.00 - $0.00
$0.00
$20.30
$20.30 - $20.30
$20.30
Only 4 left!

The Mercury MerCruiser Quicksilver Propeller Tab Washer 14-34817 is an OEM locking washer used to secure the propeller nut on compatible MerCruiser...

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$0.00 - $0.00
$0.00
$20.30
$20.30 - $20.30
$20.30

Mercury MerCruiser - Screw (Pack of 5) - 10-34763

$0.00 - $0.00
$0.00
$11.69
$11.69 - $11.69
$11.69
Only 5 left!

The Mercury MerCruiser Quicksilver Screw 10-34763 is an OEM marine fastener used in select legacy Mercury outboard and MerCruiser sterndrive assemb...

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$0.00 - $0.00
$0.00
$11.69
$11.69 - $11.69
$11.69

Mercury - Cotter Pin - 18-54929

$0.00 - $0.00
$0.00
$8.94
$8.94 - $8.94
$8.94
Only 1 left!

The Mercury Quicksilver Cotter Pin 18-54929 is an OEM mechanical locking fastener used in select MerCruiser sterndrive transom and swivel assemblie...

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$0.00 - $0.00
$0.00
$8.94
$8.94 - $8.94
$8.94

Mercury - Gimbal Housing Lock Nut - 11-34087

$0.00 - $0.00
$0.00
$12.44
$12.44 - $12.44
$12.44
Only 4 left!

The Mercury Quicksilver Gimbal Housing Lock Nut 11-34087 is an OEM-style red Nyloc hex locking nut used in select MerCruiser transom and gimbal hou...

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$0.00 - $0.00
$0.00
$12.44
$12.44 - $12.44
$12.44

Mercury - Double-Wound Split Lock Washer - 13-33734

$0.00 - $0.00
$0.00
$4.04
$4.04 - $4.04
$4.04
Only 2 left!

The Mercury Quicksilver Double-Wound Split Lock Washer 13-33734 is an OEM heavy-duty lock washer used in select MerCruiser high-vibration mounting ...

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$0.00 - $0.00
$0.00
$4.04
$4.04 - $4.04
$4.04

Mercury MerCruiser - Rear Engine Mount Washer - 12-32834

$0.00 - $0.00
$0.00
$10.64
$10.64 - $10.64
$10.64
in stock

The Mercury MerCruiser Quicksilver Rear Engine Mount Washer 12-32834 is an OEM structural washer used in select MerCruiser rear engine mount, flywh...

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$0.00 - $0.00
$0.00
$10.64
$10.64 - $10.64
$10.64

Mercury - Engine Mounting Screw - 10-8M2021918

$0.00 - $0.00
$0.00
$3.89
$3.89 - $3.89
$3.89
Only 2 left!

The Mercury Quicksilver Engine Mounting Screw 10-8M2021918 is an OEM structural fastener used in select Mercury/MerCruiser engine mounting applicat...

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$0.00 - $0.00
$0.00
$3.89
$3.89 - $3.89
$3.89

Mercury MerCruiser Quicksilver Stainless Nut 1/4-20 814101

$3.84 - $3.84
$3.84
$3.84 - $3.84
$3.84
Only 5 left!

Mercury MerCruiser Quicksilver 11-814101 is a .250-20 stainless steel nut used across select Mercury, Mariner, and MerCruiser assemblies. Current M...

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$3.84 - $3.84
$3.84
$3.84 - $3.84
$3.84

Mercury MerCruiser Quicksilver Bell Housing Washer 806241

$9.04 - $9.04
$9.04
$9.04 - $9.04
$9.04
Only 4 left!

Mercury MerCruiser Quicksilver 12-806241 is a bell housing washer used on select MerCruiser bell housing assemblies, including applications identif...

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$9.04 - $9.04
$9.04
$9.04 - $9.04
$9.04

Mercury MerCruiser Black Oxide Screw 438-14 x 2.060 843917

$0.00 - $0.00
$0.00
$12.65
$12.65 - $12.65
$12.65
Only 1 left!

Mercury MerCruiser 843917 is a genuine OEM black oxide screw sized .438-14 x 2.060. Current Mercury dealer references show 843917 superseded to 8M0...

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$0.00 - $0.00
$0.00
$12.65
$12.65 - $12.65
$12.65

Mercury Outboard Latch Lever Screw M6 x 30 40019130

$2.74 - $2.74
$2.74
$2.74
$2.74 - $2.74
$2.74
Only 1 left!

Mercury Quicksilver 40019130, commonly listed as 10-40019130, is a genuine OEM M6 x 30 screw. Current Mercury parts sources identify it simply as S...

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$2.74 - $2.74
$2.74
$2.74
$2.74 - $2.74
$2.74

Mercury MerCruiser Screw M6 x 14 4000327

$4.45 - $4.45
$4.45
$4.45
$4.45 - $4.45
$4.45
in stock

Mercury MerCruiser Quicksilver 4000327, commonly listed as 10-4000327, is a genuine OEM screw identified by current Mercury dealer sources as SCREW...

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$4.45 - $4.45
$4.45
$4.45
$4.45 - $4.45
$4.45

Mercury MerCruiser Screw .437-14 x 1.250 29081

$7.41 - $7.41
$7.41
$7.41
$7.41 - $7.41
$7.41
Only 5 left!

Mercury MerCruiser Quicksilver 29081, commonly listed as 10-29081, is a genuine OEM screw identified by current Mercury dealer sources as SCREW (.4...

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$7.41 - $7.41
$7.41
$7.41
$7.41 - $7.41
$7.41

Mercury MerCruiser Screw .250-20 x .625 14070

$19.79 - $19.79
$19.79
$19.79
$19.79 - $19.79
$19.79
Only 2 left!

Mercury MerCruiser Quicksilver 14070, commonly listed as 10-14070, is a genuine OEM screw sized .250-20 x .625. Current Mercury dealer references s...

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$19.79 - $19.79
$19.79
$19.79
$19.79 - $19.79
$19.79

ABA #12 Stainless Steel Hose Clamp 7/8" – 1-1/4" (ABA-13632)

$9.54 - $9.54
$9.54
$9.54 - $9.54
$9.54
in stock

The ABA #12 Stainless Steel Hose Clamp is a precision-engineered worm-drive clamp with a clamping range of 7/8" to 1-1/4" — purpose-built for deman...

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$9.54 - $9.54
$9.54
$9.54 - $9.54
$9.54

MOB Mounting Bracket Model 403 – Black (MOB-MBRKT-M2B)

$12.63 - $12.63
$12.63
$12.63 - $12.63
$12.63
Only 1 left!

The MOB Mounting Bracket Model 403 in Black is a dedicated mounting solution for man overboard (MOB) safety equipment. Designed to provide a secure...

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$12.63 - $12.63
$12.63
$12.63 - $12.63
$12.63