Material: AISI 1015, EN 8D, AISI 1045, EN 15, AISI 1541, EN 18, EN 19, AISI 4140
I.S.O. material strength grade: 5.8, 6.8, 8.8, 10.9, 12.9
SAE material strength grade: 2,5,8
Surface treatment: Paint (Red / Black /Grey), phosphated, white zinc electroplated, yellow zinc electroplated, black oxide, hot dip galvanized, dacromet