Fastener Standards
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BS 1804-3Specification for parallel and taper dowel pins having screw threads for extraction purpose - metric series.
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BS 1981Specification for unified machine screws and machine screw nuts.
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BS 2061Specification for phosphor bronze spring washers for general engineering purposes.
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BS 2470Specification for hexagon socket screws and wrench keys. Inch series.
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BS 2693Specification for screwed studs for general purpose.
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BS 2827Specification for machine screw nuts, pressed type (B.A. and Whitworth form threads).
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BS 3410Specification for metal washers for general engineering purposes.
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BS 3673Specification for spring retaining rings, carbon steel circlips - metric series.
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BS 3692Specification for precision hexagon bolts, screws and nuts.
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BS 4168-1Specification for hexagon socket head cap screws and wrench keys - metric series.
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BS 4168-2Specification for hexagon socket set screws with flat point and wrench keys - metric series.
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BS 4168-3Specification for hexagon socket set screws with cone point and wrench keys - metric series.
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BS 4168-4Specification for hexagon socket set screws with dog point and wrench keys - metric series.
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BS 4168-5Specification for hexagon socket set screws with cup point and wrench keys - metric series.
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BS 4168-6Specification for hexagon socket button head screws and wrench keys - metric series.
