BS 4183:1967

July 1967

Standard Current

Specification for machine screws and machine screw nuts. Metric series

With ISO metric screw threads to BS 3643, 1 mm to 20 mm diameter. Dimensions, tolerances, mechanical requirements for countersunk, raised countersunk, pan and cheese head screws with slotted heads, and countersunk, raised countersunk and pan head screws with recessed heads. Dimensions, tolerances, general requirements for square and hexagon machine screw nuts (pressed type). Checking recess penetration, dimensioning of 90° countersunk heads, standard sizes. See BS 1981, BS 3692.

Main informations

Collections

BSI English standards

Publication date

July 1967

Number of pages

42 p.

Reference

BS 4183:1967

ICS Codes

21.060.10 Bolts, screws, studs

21.060.20 Nuts

Print number

International kinship

ISO 1207

Sumary

Specification for machine screws and machine screw nuts. Metric series

With ISO metric screw threads to BS 3643, 1 mm to 20 mm diameter. Dimensions, tolerances, mechanical requirements for countersunk, raised countersunk, pan and cheese head screws with slotted heads, and countersunk, raised countersunk and pan head screws with recessed heads. Dimensions, tolerances, general requirements for square and hexagon machine screw nuts (pressed type). Checking recess penetration, dimensioning of 90° countersunk heads, standard sizes. See BS 1981, BS 3692.

Standard replaced by (2)

BS EN ISO 7045:1995

January 1995

Standard Cancelled

Pan head screws with type H or type Z cross recess. Product grade A

BS EN ISO 1580:1994

December 1994

Standard Cancelled

Slotted pan head screws. Product grade A

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