The screw pusher clamp is used to push a part against a support structure by screwing the thumbscrew in or out to release pressure on the part. It is recommended for use on CMMs, the Equator™ gauging system, and vision and multi-sensor machines. This is a universal component suitable for thread sizes M6, M8 and ¼-20.Note: Included: socket head cap screws and washers. Replacement for old R&R part number: CSP-20