Feet for Swivel Screws are an important part of our patented left-hand-thread swivel-foot system. The ball end of the body screws into the foot for easy installation and removal. Once the ball threads pass beyond the foot threads, the foot can rotate and pivot freely (20° total angle). Foot threads are left-hand to positively prevent accidental backout during use. Four types of swivel screw feet are available in the Carr Lane catalog, including small, large, extra-large and ball variations. Feet for swivel screws are available in a variety of finishes, including steel zinc plated yellow chromate, steel with a black oxide finish, stainless steel, and white Delrin®. All Carr Lane Swivel Screw Feet are proudly made in the USA.