BS A 104:2025

BS A 104:2025

August 2025
Standard Current

AEROSPACE SERIES Bolts, hexagonal heads with optional safety locking wire holes, unified threads, corrosion-resisting or heat-resisting steels, plain finish. Specification - Classification CR steel Rm = 127 600 lbf/in2 (880 MPa) at Ambient temperature | +515 °C. Classification HR steel Rm = 130 500 lbf/in2 (900 MPa) at Ambient temperature | +515 °C

Main informations

Collections

BSI English standards

Publication date

August 2025

Number of pages

23 p.

Reference

BS A 104:2025

ICS Codes

49.030.20   Bolts, screws, studs

Print number

1
Replaced standards (1)
BS 4A 104:2002+A2:2012
September 2012
Standard Cancelled
Specification for corrosion-resisting steel bolts (Unified hexagons and Unified threads), strength class 880 MPa, for aircraft

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