Product name
alloy steel stud bolt heavy duty black astm a193 grade b7 bolts
Standard
DIN975 DIN976 ASTM A193 B7 B8
Grade
4.8, 8.8, 10.9, AISI 2, AISI 5, AISI 8.
Material
stainless steel304,316, carbon steel, alloy steel, brass...
Surface treatment
HDG, PTFE coated, plain, black, galvanized, yellow zinc plated...