2 Pack Full 316 SS Square Pto Pin, Safety Coupler Pin 3/16" x 1.97"(4.8mm x 50mm), Full Marine Grade 316 Stainless Steel Shaft Locking Pin, Small Pins Please Check The Size First:
PTO Link™ SD System - Replacement Shear/Locking Pin & Safety Bolt Combo - PTO Link
PTO Shaft Locking Pin 1/4" x 2-1/4" ( PACK of 10): Amazon.com: Industrial & Scientific
Pin Lock/Release On PTO Shaft Jamming | My Tractor Forum
Pin Lock/Release On PTO Shaft Jamming | My Tractor Forum
Ohio Diesel Parts PTO Power Take Off Pin Yoke Quick Release 1-Pack: Amazon.com: Industrial & Scientific
How to Quickly and Safely Hook Up Your PTO | Team Tractor & Equipment | Phoenix Arizona