SSS This RFQ was sourced on www.MFG.com in CHINA for Socket Set Screws M12x20 GB79-85 Buyer Information Industry Machinery and Tools City/Region Ningbo, 浙江 (Zhejiang) Country CHINA RFQ RFQ Number 434226 Material Technical Specifications Category Socket Set Screws Dimensions The following suppliers (machine shops, fabricators, casters, molders, 3D printing, CNC machining, etc.) provide manufacturing services and are members of the MFG.com community. For more information visit http://www.mfg.com. MFG.com performs a 5-point inspection on all engineered parts and RFQs to ensure quality and enhance your quoting experience Socket Set Screws: Socket set screws are set screws with a hex socket drive used to prevent loosening due to vibration, as well as used to retain mechanical components within threaded holes. They are most commonly headless, and are designed to be inserted flush with or below the surface of the work piece.