BS A 281; A 282 [...]:1981

Действует

Specification for hexagon (thin) self-locking nuts with non-metallic locking inserts. Metric series — 9 стр.

Ссылочные документы

Действует

Specification for 1% chromium-molybdenum steel bars for the manufacture of forged bolts and forged nuts — 6 стр.

Действует

Specification. 2$9H% nickel-chromium-molybdenum steel billets, bars, forgings and parts (880-1080 MPa: limiting ruling section 150 mm) — 8 стр.

Действует

ISO metric screw threads, Specification for selected limits of size — 48 стр.

Заменен

Assessment of surface texture, Methods and instrumentation — 34 стр.