BS 1981:1991

BS 1981:1991

August 1991
Standard Current

Specification for unified machine screws and machine screw nuts

Applicable to machine screws and machine screw nuts having ISO inch screw threads and hexagon head and slotted or recessed heads with type Z and type V recess. Mechanical properties are specified for steel, brass and aluminium alloy screws and nuts.

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Main informations

Collections

BSI English standards

Publication date

August 1991

Number of pages

48 p.

Reference

BS 1981:1991

ICS Codes

21.060.10   Bolts, screws, studs
21.060.20   Nuts

Print number

1
Sumary
Specification for unified machine screws and machine screw nuts

Applicable to machine screws and machine screw nuts having ISO inch screw threads and hexagon head and slotted or recessed heads with type Z and type V recess. Mechanical properties are specified for steel, brass and aluminium alloy screws and nuts.
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