ISO 13921:1996 EN c8b64fa6
Aerospace — Screws, 100 degrees reduced countersunk head, internal offset cruciform ribbed or unribbed drive, normal shank, short or medium length MJ threads, metallic material, coated or uncoated, strength classes less than or equal to 1 100 MPa — Dimensions
废止
发布日期 :
1996-08-15
实施日期 :