Lag Screw, 5/16 x 1"
Free returns on all eligible orders
You have 30 days to request a return. All sale items are final sale.
Replace worn or missing fasteners with this 5/16" x 1" lag screw made from 18-8 stainless steel for reliable corrosion resistance in marine hardware and mounting applications.
Key Features
- Size: 5/16" x 1"
- Material: 18-8 stainless steel
Intended Use
- Marine hardware mounting and fastening (bulk fastener use)
- General-purpose corrosion-resistant fastening for boats and marine projects
Product Details
- Lag Screw size: 5/16 x 1"
- Material: 18-8 Stainless Steel
- SKU: 50-00173
- Variant barcode provided on listing: omitted (barcode value appears in scientific notation)
- Variant weight: 340 GRAMS (for the variant)
Parts Desk Insights
Best Use Case: A good choice when you need a short, corrosion-resistant fastener for fastening brackets or mounting components where stainless hardware is preferred.
Common Issues: Check material thickness and pre-drill requirements for the substrate you’re fastening into; stainless lag screws can be prone to galling if threads aren’t handled carefully—consider proper lubrication during installation when appropriate.
Related Products & Accessories
- Fasteners & Mounting (collection) - Browse related marine fasteners and mounting hardware in the Fasteners & Mounting collection.
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.