Our Chains & Chain Lock Section Features Heavy Duty Abus Chains, Which Can Be Purchased as a Pre-Cut Chain in 2-Foot, 6-Foot or 10-Foot Lengths, or Special Order Exact Custom Size Chains With or Without a Chain Sleeve. All Abus Chains Are Available in Five (5) Standard Chain Thickness: 1/4" Thickness (6KS), 5/16" Thick (8KS), 3/8" Thick (10KS), 1/2" Thick (12KS) & 9/16" Thick (14KS).