Screws and Washers, Mfrs. of All Steel Quik Loc Shaft Collars. Allows A Change of Spools Without Tools. Eliminates Use of Wrenches For Set Screws. One Hand Operation Allows Quik Loc To Slip On/Off Shaft Without Tools. Designed To Upgrade Winding, Payoff, Spooling & Other Types of Machines That Need To Position/Retain Spools, Reels, Bobbins. Standard. Metric & Special Sizes Available To Fit Any Shaft. Modifications Available. Clips; Collars; Payoffs ...