1/4 Inch x 3-1/2 Inch Carriage Bolt This RFQ was sourced on www.MFG.com in USA for Carriage Bolts Buyer is in search of a 1/4 Inch x 3-1/2 Inch Carriage Bolt. Buyer is interested in quotes for coated and un-coated parts. Buyer Information Industry Consumer Products City/Region Canton, Ohio, Ohio Country USA RFQ RFQ Number 634995 Material Tool Steel Technical Specifications Category Carriage Bolts 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. Carriage Bolts: Carriage bolts are bolts with a rounded head, generally used in wood fastening applications.