Stud This RFQ was sourced on www.MFG.com in USA for Double End Studs Buyer is in search of double ended stud 1 5/8" long, 1/4-20 thread on one end, 1/4-28 thread on other. 1/4-20 needs to be tight this end will screw in and stay in the block. About 1/2" of threads on both ends. Grade 5 material. Preferred rolled threads. This a a modified standard part. Please contact Buyer through MFG.com messaging system with any questions. Buyer Information Industry HVAC (Heating, Ventilation and Air Conditioning) City/Region Cleveland, Mississippi Country USA RFQ RFQ Number 506740 Material Technical Specifications Category Double End Studs Dimensions Are you looking for suppliers (machine shops, fabricators, casters, molders, 3D printing, CNC machining, etc.) to provide manufacturing services for machine tool industry, automotive industry? For more information visit MFG.com. MFG.com performs a 5-point inspection on all engineered parts and RFQs to ensure quality and enhance your online quoting experience Double End Studs: Double end studs have threads of two different thread forms or diameters on either end of the rod.