Flat Washer, 5/16", .062" Thick, OD 7/8"
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You have 30 days to request a return. All sale items are final sale.
Keep fasteners seated securely with this Seachoice flat washer made from 18-8 stainless steel. Designed to spread load and help reduce loosening for marine-grade assembly hardware.
Key Features
- 18-8 stainless steel for corrosion resistance
- Flat washer design helps distribute clamp load
- 5/16" size with .062" thickness and 7/8" outer diameter
Intended Use
- Marine fastener applications
- General-purpose stainless hardware assemblies
- Projects that use 5/16"-size fasteners and benefit from load-spreading washers
Product Details
- Type: Flat washer
- Brand/Series: Seachoice (as indicated by SKU/catalog listing)
- Material: 18-8 Stainless Steel
- Size: 5/16"
- Thickness: .062"
- Outer Diameter (OD): 7/8"
- SKU: 50-00968
Parts Desk Insights
Best Use Case: Use as a load-spreading washer under the head of a 5/16" fastener to help improve clamping consistency in corrosive, marine-style environments.
Common Issues: If the washer thickness or outer diameter doesn’t match the rest of your stack-up, it can affect seating and torque performance. Before installing, confirm the washer’s OD and thickness against the mating parts and existing hardware layout.
Related Products & Accessories
- Browse Fasteners & Mounting - Use the Fasteners & Mounting collection to find matching washers, nuts, and related hardware.
Shipping information
In-stock and OEM parts: ship same or next business day.
Locally warehoused items: ship within 1-3 business days.
Special-order items: timeline confirmed after order.
Returns & warranty
Returns & Satisfaction Guarantee
We stand firmly behind the quality of every product we sell. Your confidence matters to us — and we back it with a straightforward 30-Day Satisfaction Guarantee.
If you are not fully satisfied, you may request a return within 30 days of delivery. All returns must receive pre-approval prior to being sent back. Unauthorized returns will not be accepted.
To qualify for a return:
Item must be in new, unused condition
Product must be in its original packaging
All parts, components, hardware, manuals, and accessories must be included
Packaging must be undamaged and suitable for resale
Important:
Electronics are strictly inspected. No returns on open-box electronics. Exceptions may apply only with prior written approval. Any electronic unit that has been installed, powered, activated, or altered may not be eligible for return.
We are serious about product integrity — and equally serious about taking care of our customers. If there is ever a product issue, contact us immediately so we can make it right.
For return authorization, please contact our support team before shipping anything back.