5/16″-18 x 3 1/2″ 316 Stainless Steel Hex Cap Screw
In stock · Ships in 1–2 business days
$0.75
Universal dock hardware
5/16″-18 x 3 1/2″ 316 Stainless Steel Hex Cap Screw. Used on Self-leveling stairs.
What you can expect.
Ships fast.
Most orders leave our Hudson, NH warehouse within 1 business day. Northeast addresses typically arrive in 1–2 days.
Built for the Northeast.
Commercial-grade hardware designed for winter storage and four-season water — shipping nationwide.
Real humans answer.
Dock specialists on the phone M–F 8a–5p and Saturday mornings. Never a chatbot.
