Hex head bolts DIN 931/933 12.9 10.9 8.8 d≤16 d≥16 HRC39-44 HRC32-39 HRC 22-32 HRC 23-34 Alloy SteelCarbon Steel ASME B18.2.1-1996 Grade 8 Grade 5 HRC39-44 HRC22-34 Alloy Steel Carbon Steel Pengchi Hardware (shandong) Co., Ltd. passed ISO9001:2008 quality management system certification, and actively prepared TS16949 quality system certification. At the same time, the company, in accordance with the requirements of national laboratory standards, is equipped with a full set of imported fastene
Pengchi Hardware (shandong) Co., Ltd. passed ISO9001:2008 quality management system certification, and actively prepared TS16949 quality system certification. At the same time, the company, in accordance with the requirements of national laboratory standards, is equipped with a full set of imported fastener quality testing instruments and professionals to strictly control and test the raw material procurement, finish milling, production and manufacturing, heat treatment, packaging and shipment and other processes. Ensure that each "XGP" screw can meet the technical standard requirements.