Shop / Tire Changer Parts / Upper Disc Arm Lock Spring Bolt “1/4″ Valve” has been added to your cart. View cart Upper Disc Arm Lock Spring Bolt$12.00 Out of stock SKU: TH-ST0012044 Category: Tire Changer Parts Related products Block Pivot Plate $63.79 Read more Plastic Insert 10 Pack Triangular $42.41 Add to cart CR Inverter Group TC-BI $665.00 Add to cart Potentiometer Support Bracket $36.00 Add to cart