BS 64:1992

Committees responsible
Foreword
Specification
1 Scope
2 References
3 Material
4 Manufacture
5 Heat treatment
6 Mechanical properties
7 Dimensions and tolerances
8 Quality control
9 Marking
10 Protective coating
Annexes
A (informative) Information to be supplied by the
     purchaser
B (informative) Basic sizes of British Standard screw
     threads for bolts and nuts
Tables
1 Minimum proof loads and minimum and maximum ultimate
     tensile loads for British Standard Whitworth (BSW)
     screw threads
2 Minimum proof loads and minimum and maximum ultimate
     tensile loads for British Standard fine (BSF) screw
     threads
3 Mechanical properties for test pieces machined from
     bolts
4 Hardness requirements for nuts
5 Dimensions of cup/pear and pan/pear fishbolts and
     nuts for fishplates with pear shaped holes
6 Dimensions of square headed fishbolts and nuts for
     flat bottom rails with round holes
B.1 Limits and tolerances of British Standard Whitworth
     screw threads for medium fit bolts
B.2 Limits and tolerances of British Standard Whitworth
     screw threads for medium fit nuts
B.3 Limits and tolerances of British Standard fine screw
     threads for medium fit bolts
B.4 Limits and tolerances of British Standard fine screw
     threads for medium fit nuts
Figures
1 Cup/pear and pan/pear fishbolts and nuts for
     fishplates with pear shaped holes
2 Square-headed fishbolts and nuts
List of references

Specifies the requirements and dimensions for high strength and normal bolts and nuts for fishplates conforming to BS 47 Pt1 1991 for use with railway rails conforming to BS 11 1985. Coverage includes: material, manufacture, heat treatment, mechanical properties, marking, protective coating, and quality control. Also includes annexes, tables and diagrams.

This British Standard specifies the dimensions and requirements for normal and high strength bolts and nuts for fishplates conforming to BS 47 : Part 1 : 1991 for use with railway rails conforming to BS 11 : 1985.

The provisions of this specification are not restricted to fishbolts for use with rails and fishplates conforming to BS 11 : 1985 and BS 47 : Part 1 : 1991 and may be applied to fishbolts for any rail section of 24.8 kg/m (50 lb/yd) or greater linear mass and the complementary fishplates.