Số hiệu tiêu chuẩn
NF E25-650
Tên tiêu chuẩn
Fasteners. Tapping screws family standard.
Ngày phát hành
1983-05-01
Tiêu chuẩn tương đương
ISO 2702:1974,NEQ * ISO 1478:1983,NEQ
Thay thế bằng
NF EN ISO 1478:199409 (E25-650-2) * NF EN ISO 2702:199410 (E25-650-1)
Lịch sử ban hành
NF EN ISO 1478:199409 (E25-650-2)*NF EN ISO 2702:199410 (E25-650-1)*NF E25-650
Từ khóa
Vacuum devices * Vickers hardness measurement * Carbon steels * Classification * Screws (bolts) * Fasteners * Dimensional tolerances * Edison screw lampholders * Foldings * Testing conditions * Bendings * Threads * Structuring * Locating threads * Light alloys * Torsional strength * Unalloyed steels * Screw threads * Mechanical testing * Fine steels * Grades (quality) * Folding * Stainless steels