DIN 934 H=D, ISO 4032, UNI 5587, DIN 2510: Class 8, 10, 12;

ASTM A194/A194M: 2H, 2HM, 7, 7M, 7L, 7ML;

ASTM A563/A563M, JIS B 1186: DH, A, B, C, 10S;

DIN 934, JIS B 1181: Class 8, 10, 12;

ISO 4032, ISO 898, GB 6170: Class 8, 10;

Diameter: 1/2"- 4", M16 - M100.