Hexagon Fit Bolts

Features:
1) Wide range of M12-M120, 1/2"-4", which are in accordance with the following
standards: GB/T, SH, HG, H, JB, GD, ANSI (ASTM/ASME), DIN and other non-
standards
2) The products are specifically targeted toward the oil, petrochemical, chemical,
electric power (nuclear power station), machine and military industry enduring strict
precision, high strength, and strong rust in harsh environments
Hexagon Fit Bolts