Your complete list of Ultra Traction Parts bulk Cam Lock side chain. Regular cam lock side chain in 7, and 8mm. Hardened Alloy cam lock side chain in 6,and 8mm material sizes. Note: Ultra 6mm and 8mm studded truck side chain has break strengths of 12,600 lbs. (6mm), and 20,000 lbs. (8mm). Sold by the piece. Boomer lever fastener included. Cam tool not included.