Shop / Hoist Parts / 1/2″ Extension Spring “Buttonhead Screw” has been added to your cart. View cart 1/2″ Extension Spring$4.94 In stock 1/2" Extension Spring quantity Add to cart SKU: TH-40221 Category: Hoist Parts Related products Challenger Lock Release Air Cylinder $802.79 Read more Din Connector 220V RAC Plug $346.00 Add to cart 3/8″ Spring $4.03 Add to cart Hex Bolt 3/8NCx2 $7.20 Add to cart