High-Performance HG/T 20634 Fully Threaded Studs by Handan Haosheng Fastener Co., Ltd.

Handan Haosheng Fastener Co., Ltd. specializes in high-performance HG/T 20634-2009 fully threaded studs for Class series steel pipe flange connections, offering full-length external threads with nuts at both ends, drawing-based length, and material selection by design pressure and temperature. Ideal for petrochemical plants, process piping, pumps, valves and equipment interfaces, our studs cover M14-M90 with alloy, stainless and ASTM special grades, resisting flange leakage under high pressure and temperature. With bluing (black oxide) and project-specified finishes, ISO 9001/14001/45001 control, heat-number traceability and OEM/ODM supply, Haosheng’s fully threaded studs ensure reliable, repeatable flange clamping.