Inch screw threads , Screw threads & fasteners ( Module 11 ), British Standards, IHS

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BS 1580-1:2007	Unified screw threads. Screw threads with diameters 1/4 in and larger. Requirements
BS 1580-3:1965	Specification for Unified screw threads. Diameters below 1/4 in
BS 1580-3:2007	Unified screw threads. Screw threads with diameters below 1/4 in. Requirements
BS 1580:Parts 1 and 2:1962	Specification for Unified screw threads. Diameters 1/4 in and larger
BS 1936-1:1952	Undercuts and runouts for screw threads. Inch screw threads
BS 2827:1957	Specification for machine screw nuts, pressed type (B.A. and Whitworth form threads)
BS 84:1956	Specification for parallel screw threads of Whitworth form
BS 84:2007	Parallel screw threads of Whitworth form. Requirements
BS 919-2:1971	Specification for screw gauge limits and tolerances. Gauges for screw threads of Whitworth and BA forms
BS 919-2:2007	Screw gauge limits and tolerances. Specification for gauges for screw threads of Whitworth and B.A. forms
BS ISO 68-2:1998	ISO general purpose screw threads. Basic profile. Inch screw threads

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