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BS 1769

51st Edition, September 24, 1951

Complete Document

Unified Black Hexagon Bolts, Screws, Nuts (UNC & UNF Threads) Heavy Series

Includes all amendments and changes through Reaffirmation Notice , March 1, 2013

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Product Details:

  • Revision: 51st Edition, September 24, 1951
  • Published Date: March 1, 2013
  • Status: Active, Most Current
  • Document Language: English
  • Published By: British Standards Institution (BSI)
  • Page Count: 19
  • ANSI Approved: No
  • DoD Adopted: No

Description / Abstract:

Dimensions, general requirements for sizes 1⁄2 in to 2 in. Dimensions of bolts, screws, ordinary nuts, lock nuts, slotted nuts, bolts faced under the head and machined on shank, machined nuts. Formulae for calculation of dimensions for bolts, screw heads, nuts in intermediate sizes, and sizes larger than 2 in.