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Self-colour socket cap head machine screws, also known as socket cap screws with a unified national fine thread (UNF). Numerous sizes available at competitive prices.

UNF - Self-Colour Grade 12.9 Cap Head Socket Screws - ANSI B18.3

Socket cap head machine screws available in numerous sizes at competitive prices. The finer thread provides a finer pitch for specific applications that require more secure fastening and greater overall strength. Manufactured in self-colour grade 12.9 steel and often used within mechanical and engineering industries.

Extensive range with bulk discounts available and conforms to ANSI BA8.3

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  • 3/8" UNF x 3/8" Socket Cap Head Screw Self Colour 1936-1960

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    Price Each:
    £0.33 - £0.75
    £0.75 ex VAT
    £0.33 - £0.75
    £0.75 ex VAT
    £0.90  incl VAT
    Qty Discounts Available

  • 3/8" UNF x 1/2" Socket Cap Head Screw Self Colour 1936-1960

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    Price Each:
    £0.16 - £0.45
    £0.45 ex VAT
    £0.16 - £0.45
    £0.45 ex VAT
    £0.54  incl VAT
    Qty Discounts Available

  • 3/8" UNF x 5/8" Socket Cap Head Screw Self Colour 1936-1960

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    Price Each:
    £0.18 - £0.49
    £0.49 ex VAT
    £0.18 - £0.49
    £0.49 ex VAT
    £0.59  incl VAT
    Qty Discounts Available

  • 3/8" UNF x 3/4" Socket Cap Head Screw Self Colour 1936-1960

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    Price Each:
    £0.18 - £0.48
    £0.48 ex VAT
    £0.18 - £0.48
    £0.48 ex VAT
    £0.58  incl VAT
    Qty Discounts Available

  • 3/8" UNF x 7/8" Socket Cap Head Screw Self Colour 1936-1960

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    Price Each:
    £0.22 - £0.55
    £0.55 ex VAT
    £0.22 - £0.55
    £0.55 ex VAT
    £0.66  incl VAT
    Qty Discounts Available

  • 3/8" UNF x 1" Socket Cap Head Screw Self Colour 1936-1960

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    Price Each:
    £0.22 - £0.56
    £0.56 ex VAT
    £0.22 - £0.56
    £0.56 ex VAT
    £0.67  incl VAT
    Qty Discounts Available

  • 3/8" UNF x 1 1/4" Socket Cap Head Screw Self Colour 1936-1960

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    Price Each:
    £0.25 - £0.61
    £0.61 ex VAT
    £0.25 - £0.61
    £0.61 ex VAT
    £0.73  incl VAT
    Qty Discounts Available

  • 3/8" UNF x 1 1/2" Socket Cap Head Screw Self Colour 1936-1960

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    Price Each:
    £0.28 - £0.66
    £0.66 ex VAT
    £0.28 - £0.66
    £0.66 ex VAT
    £0.79  incl VAT
    Qty Discounts Available

  • 3/8" UNF x 1 3/4" Socket Cap Head Screw Self Colour 1936-1960

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    Price Each:
    £0.30 - £0.70
    £0.70 ex VAT
    £0.30 - £0.70
    £0.70 ex VAT
    £0.84  incl VAT
    Qty Discounts Available

  • 3/8" UNF x 2" Socket Cap Head Screw Self Colour 1936-1960

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    Price Each:
    £0.32 - £0.73
    £0.73 ex VAT
    £0.32 - £0.73
    £0.73 ex VAT
    £0.88  incl VAT
    Qty Discounts Available

  • 3/8" UNF x 2 1/4" Socket Cap Head Screw Self Colour 1936-1960

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    Price Each:
    £0.38 - £0.83
    £0.83 ex VAT
    £0.38 - £0.83
    £0.83 ex VAT
    £1.00  incl VAT
    Qty Discounts Available

  • 3/8" UNF x 2 1/2" Socket Cap Head Screw Self Colour 1936-1960

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    Price Each:
    £0.45 - £0.94
    £0.94 ex VAT
    £0.45 - £0.94
    £0.94 ex VAT
    £1.13  incl VAT
    Qty Discounts Available

  • 3/8" UNF x 2 3/4" Socket Cap Head Screw Self Colour 1936-1960

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    Price Each:
    £0.58 - £1.17
    £1.17 ex VAT
    £0.58 - £1.17
    £1.17 ex VAT
    £1.40  incl VAT
    Qty Discounts Available

  • 3/8" UNF x 3" Socket Cap Head Screw Self Colour 1936-1960

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    Price Each:
    £0.53 - £1.09
    £1.09 ex VAT
    £0.53 - £1.09
    £1.09 ex VAT
    £1.31  incl VAT
    Qty Discounts Available

  • 3/8" UNF x 3 1/4" Socket Cap Head Screw Self Colour 1936-1960

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    Price Each:
    £0.74 - £1.45
    £1.45 ex VAT
    £0.74 - £1.45
    £1.45 ex VAT
    £1.74  incl VAT
    Qty Discounts Available

  • 3/8" UNF x 3 1/2" Socket Cap Head Screw Self Colour 1936-1960

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    Price Each:
    £0.85 - £1.63
    £1.63 ex VAT
    £0.85 - £1.63
    £1.63 ex VAT
    £1.96  incl VAT
    Qty Discounts Available

  • 3/8" UNF x 4" Socket Cap Head Screw Self Colour 1936-1960

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    Price Each:
    £1.02 - £1.91
    £1.91 ex VAT
    £1.02 - £1.91
    £1.91 ex VAT
    £2.29  incl VAT
    Qty Discounts Available

  • 3/8" UNF x 4 1/2" Socket Cap Head Screw Self Colour 1936-1960

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    Price Each:
    £1.17 - £2.18
    £2.18 ex VAT
    £1.17 - £2.18
    £2.18 ex VAT
    £2.62  incl VAT
    Qty Discounts Available

  • 3/8" UNF x 5" Socket Cap Head Screw Self Colour 1936-1960

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    Price Each:
    £1.23 - £2.27
    £2.27 ex VAT
    £1.23 - £2.27
    £2.27 ex VAT
    £2.72  incl VAT
    Qty Discounts Available

  • 3/8" UNF x 5 1/2" Socket Cap Head Screw Self Colour 1936-1960

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    Price Each:
    £1.36 - £2.49
    £2.49 ex VAT
    £1.36 - £2.49
    £2.49 ex VAT
    £2.99  incl VAT
    Qty Discounts Available

  • 3/8" UNF x 6" Socket Cap Head Screw Self Colour 1936-1960

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    Price Each:
    £1.79 - £3.22
    £3.22 ex VAT
    £1.79 - £3.22
    £3.22 ex VAT
    £3.86  incl VAT
    Qty Discounts Available