Qty.10) 5/16" X .600" Slic-Pin Spring Loaded Locking Zinc Clevis/Cotter pin | eBay
Pivot Point's SLIC Pin functions as an all-in-one self-locking pin & cotter - Fastener Engineering
Imperial Stainless Steel Clevis Pins UK ISO 2341 | Boneham
8mm X 51mm Spring Loaded Lock Pin 316 Stainless Steel Quick Release Self Locking With Keyring Clevis Fasten Push Pull Marine Security Tool - Etsy UK
12pcs M8 Clevis Pin and M3 X 60 R Shape Cotter Pin Assortment Kit, 304 Stainless Steel Single Hole Flat Head Pin Cotter Pin Hairpin for Hitch Pin Lock Systems : Amazon.co.uk: