Marine Fasteners RP-1431 Fender Washer 5/16in ID x 1-1/2in OD 316 Stainless Steel 50-Pack

The Marine Fasteners RP-1431 is a 5/16" inner diameter, 1-1/2" outer diameter fender washer crafted from 18-8 stainless steel for reliable corrosion resistance in marine and outdoor environments. Each pack contains 50 washers, making it an economical choice for professional and DIY fastening projects.

Fender washers feature an oversized outer diameter relative to their center hole, providing a significantly larger bearing surface than standard flat washers. This distributes clamping load over a wider area, reducing pull-through on thin panels, soft materials, and sheet metal — ideal for boat building, dock construction, and marine hardware installations.

Key Features:

• Inner Diameter: 5/16 in
• Outer Diameter: 1-1/2 in
• Material: 18-8 Stainless Steel
• Quantity: 50 pieces per pack
• Finish: Natural stainless — resists rust and corrosion in saltwater and marine environments
• Oversized OD provides greater bearing surface than standard flat washers
• Compatible with 5/16 in bolts, screws, and threaded rod

These marine-grade fender washers are well-suited for dock building, hull hardware, rigging, and general marine fastening applications where corrosion resistance and load distribution are critical.