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BS 57:1951

Specification. B.A. screws bolts and nuts

Standard Details

Heads: cheese, round, countersunk, raised-countersunk, hexagonal; hexagonal nuts, ordinary and locknut; range No. 0 to No. 16 B.A. Standard lengths of screws.

General Information

Status : Under Review
Standard Type: Main
Document No: BS 57:1951
Document Year: 1951
Pages: 22
  • Section Volume:
  • GBM11 Screw Threads & Fasteners (GMB11)

Life Cycle

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Under Review
BS 57:1951

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