316ss Stainless Steel Cotter Pins
316L Stainless Steel Cotter Split Pin
Cotter Split Pin Size Diagram
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316 Stainless Steel Cotter Pins

Part Number: SS-CP-1/16x3/4

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These high quality, marine grade, passivated 316 SS cotter pins (also known as split pins) come in handy for all kinds of uses on a boat. From securing sailing yacht rigging, to locking castle nuts, propellers, or trailer hitches, they are always good to have around. Pick up a few of each size and be sure that you'll be able to solve those inevitable issues right out on the water. 

Our cotter pins are made from SOLID alloy 316 stainless steel also known as A4 or 316L. Most cotter pins you'll find are made from 304, 18-8, or A2 stainless and will quickly start to develop rust and leave unsightly streaks on deck. They are incredibly resistant to saltwater and will hold your clevis pins, props, turnbuckles, and other various fittings securely for years to come.

Cotter pin thickness (diameter) is the thickness of the shank across both prongs, and the length is measured from the bottom of the head to the shortest prong. Please see the diagram in the photos for sizing help.

Customer Reviews

Based on 6 reviews
Phillippe Saumier
Cotter pins

Fast shipping

paul barradell

First Class outfit !

Rob Benson
Great Cotter Pins

They performed as desired. Correct size. Quickly shipped. Thank you.

Aaron Ragsdale
Marine Grade Bolts

Great pricing for 316 stainless and bronze fasteners with fast shipping!

Andrew Haggerty
Best price around, quick delivery

I called Fair Wind to make sure it was actually a real company before I ordered because I wasn’t sure how they were able to sell the specific cotter pins I was looking for at about 50% less than anywhere else. I still don’t know how they do it but I got what I ordered about 2 days faster than I expected and at a great price. Will certainly be ordering from them again if I need more marine fasteners.