Three-star grip screw

The Softline coating of the three-lobed knobs with threaded stud GN 533.6 makes these operating elements particularly “operator friendly” and hence ergonomic. The soft, non-slip coating improves the contact in both moist (hand perspiration) and in dry conditions, with oily surfaces and at high or very low temperatures. The use of Softline star knobs is recommended particularly when heavy duty clamping is required.