Square head bolt C-level definition

Square head bolts Class C refers to fasteners that are connected to each other by a head and a screw. They need to be used with a nut. The grade of the square head bolt is Class C. Square head bolts are divided into 4.8 bolts, 8.8 bolts, 10.9 bolts, and 12.9 bolts according to the high strength grade. There are iron bolts and stainless steel bolts according to the screw wire material, stainless steel SUS304 bolts, stainless steel SUS201 bolts, stainless steel bolts. SUS316 bolts. Its application is extensive, and its application range includes electronic and electrical industry, hydraulic engineering industry, electrical products, mechanical equipment, chemical equipment, ships, vehicles, bridges, steel structures and so on.