I.S. EN 493:1993被替代

Sets limits for various types of surface discontinuities on nuts with: - nominal thread diameters from 5 up to and including 39 mm; - product grade A and B; - all property classes according to EN 20898-6 and IS0 2320 unless otherwise specified in product standards or by the purchaser.

I.S. EN ISO 10484:2004

I.S. EN ISO 10485:2004

I.S. EN ISO 6157-2:2004

DIN EN 493 (1992-07) - Identical

ONORM EN 493:1993 - Identical

NEN EN 493:1993 - Identical

UNE EN 493:1993 - Identical

SS EN 493 Ed. 1 (1992) - Identical

NS EN 493 Ed. 1 (1992) - Identical

UNI EN 493:1993 - Identical

BS EN 493:1992 - Identical

NF EN 493:1992 - Identical