Pierce Nut This RFQ was sourced on www.MFG.com in USA for Lock Nuts Buyer is in search of a pierce Nut. Please see attachment. Buyer Information Industry Automotive City/Region Oxford, Michigan Country USA RFQ RFQ Number 471983 Material Technical Specifications Category Lock Nuts Dimensions The following suppliers (machine shops, fabricators, casters, molders, 3D printing, CNC machining, etc.) provide manufacturing services for the machine tool industry, automotive industry… For more information visit www.MFG.com. MFG.com analyzes all engineered parts and RFQs for improved manufacturability and to ensure quality and a quick quoting experience. Lock Nuts: Lock nuts, also called check nuts are hex nuts tightened against other nuts that used to reduce or eliminate loosening due vibrations.