Shop / Hoist Parts / Challenger Lock Release Sheave “Buttonhead Screw” has been added to your cart. View cart Challenger Lock Release Sheave$10.72 In stock Challenger Lock Release Sheave quantity Add to cart SKU: TH-JSJ4-02-09 Category: Hoist Parts Related products Challenger 8-1/2″ Wiper $262.71 Add to cart Rotary 6-1/2″ Bronze & TFE Bearing Ring $201.44 Add to cart Hex Bolt 3/8NCx2 $7.20 Add to cart Cam Followers $42.00 Add to cart