I.S. EN 20898-1:1991被替代
Mechanical Properties Of Fasteners - Bolts, Screws And Studs
出版：National Standards Authority of Ireland
專家解讀視頻
Applies to carbon or alloy steel bolts, screws and studs of specified dimensions and threads, specifies such mechanical properties as tensile strength, Vickers, Brinell, or Rockwell hardness, impact strength, head soundness, proof stress, elongation after fracture etc.
NF EN 20898-1:1991 - Identical
DIN EN 20898-1 (1992-04) - Identical
BS EN 20898-1:1992 - Identical
UNI EN 20898-1:1991 - Identical
ISO 898-1:1999 - Identical
SS EN 20 898-1:1991 - Identical
UNE EN 20898-1:1992 - Identical
