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FREE UK delivery on orders over £75.00 ex VAT
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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  • 10-32 UNF x 1/4" Socket Cap Head Screw Self Colour 1936-1960

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    Price Each:
    £0.05 - £0.27
    £0.27 ex VAT
    £0.05 - £0.27
    £0.27 ex VAT
    £0.32  incl VAT
    Qty Discounts Available

  • 10-32 UNF x 5/16" Socket Cap Head Screw Self Colour 1936-1960

    View
    Price Each:
    £0.04 - £0.24
    £0.24 ex VAT
    £0.04 - £0.24
    £0.24 ex VAT
    £0.29  incl VAT
    Qty Discounts Available

  • 10-32 UNF x 3/8" Socket Cap Head Screw Self Colour 1936-1960

    View
    Price Each:
    £0.07 - £0.30
    £0.30 ex VAT
    £0.07 - £0.30
    £0.30 ex VAT
    £0.36  incl VAT
    Qty Discounts Available

  • 10-32 UNF x 7/16" Socket Cap Head Screw Self Colour 1936-1960

    View
    Price Each:
    £0.05 - £0.27
    £0.27 ex VAT
    £0.05 - £0.27
    £0.27 ex VAT
    £0.32  incl VAT
    Qty Discounts Available

  • 10-32 UNF x 1/2" Socket Cap Head Screw Self Colour 1936-1960

    View
    Price Each:
    £0.07 - £0.29
    £0.29 ex VAT
    £0.07 - £0.29
    £0.29 ex VAT
    £0.35  incl VAT
    Qty Discounts Available

  • 10-32 UNF x 5/8" Socket Cap Head Screw Self Colour 1936-1960

    View
    Price Each:
    £0.08 - £0.32
    £0.32 ex VAT
    £0.08 - £0.32
    £0.32 ex VAT
    £0.38  incl VAT
    Qty Discounts Available

  • 10-32 UNF x 3/4" Socket Cap Head Screw Self Colour 1936-1960

    View
    Price Each:
    £0.07 - £0.31
    £0.31 ex VAT
    £0.07 - £0.31
    £0.31 ex VAT
    £0.37  incl VAT
    Qty Discounts Available

  • 10-32 UNF x 7/8" Socket Cap Head Screw Self Colour 1936-1960

    View
    Price Each:
    £0.07 - £0.30
    £0.30 ex VAT
    £0.07 - £0.30
    £0.30 ex VAT
    £0.36  incl VAT
    Qty Discounts Available

  • 10-32 UNF x 1" Socket Cap Head Screw Self Colour 1936-1960

    View
    Price Each:
    £0.06 - £0.29
    £0.29 ex VAT
    £0.06 - £0.29
    £0.29 ex VAT
    £0.35  incl VAT
    Qty Discounts Available

  • 10-32 UNF x 1 1/4" Socket Cap Head Screw Self Colour 1936-1960

    View
    Price Each:
    £0.09 - £0.34
    £0.34 ex VAT
    £0.09 - £0.34
    £0.34 ex VAT
    £0.41  incl VAT
    Qty Discounts Available

  • 10-32 UNF x 1 1/2" Socket Cap Head Screw Self Colour 1936-1960

    View
    Price Each:
    £0.10 - £0.35
    £0.35 ex VAT
    £0.10 - £0.35
    £0.35 ex VAT
    £0.42  incl VAT
    Qty Discounts Available

  • 10-32 UNF x 1 3/4" Socket Cap Head Screw Self Colour 1936-1960

    View
    Price Each:
    £0.11 - £0.37
    £0.37 ex VAT
    £0.11 - £0.37
    £0.37 ex VAT
    £0.44  incl VAT
    Qty Discounts Available

  • 10-32 UNF x 2" Socket Cap Head Screw Self Colour 1936-1960

    View
    Price Each:
    £0.12 - £0.38
    £0.38 ex VAT
    £0.12 - £0.38
    £0.38 ex VAT
    £0.46  incl VAT
    Qty Discounts Available

  • 10-32 UNF x 2 1/4" Socket Cap Head Screw Self Colour 1936-1960

    View
    Price Each:
    £0.17 - £0.48
    £0.48 ex VAT
    £0.17 - £0.48
    £0.48 ex VAT
    £0.58  incl VAT
    Qty Discounts Available

  • 10-32 UNF x 2 1/2" Socket Cap Head Screw Self Colour 1936-1960

    View
    Price Each:
    £0.20 - £0.52
    £0.52 ex VAT
    £0.20 - £0.52
    £0.52 ex VAT
    £0.62  incl VAT
    Qty Discounts Available

  • 10-32 UNF x 2 3/4" Socket Cap Head Screw Self Colour 1936-1960

    View
    Price Each:
    £0.34 - £0.77
    £0.77 ex VAT
    £0.34 - £0.77
    £0.77 ex VAT
    £0.92  incl VAT
    Qty Discounts Available

  • 10-32 UNF x 3" Socket Cap Head Screw Self Colour 1936-1960

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    Price Each:
    £0.26 - £0.62
    £0.62 ex VAT
    £0.26 - £0.62
    £0.62 ex VAT
    £0.74  incl VAT
    Qty Discounts Available

  • 10-32 UNF x 3 1/2" Socket Cap Head Screw Self Colour 1936-1960

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    Price Each:
    £0.27 - £0.64
    £0.64 ex VAT
    £0.27 - £0.64
    £0.64 ex VAT
    £0.77  incl VAT
    Qty Discounts Available

  • 10-32 UNF x 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

  • 10-32 UNF x 4 1/2" Socket Cap Head Screw Self Colour 1936-1960

    View
    Price Each:
    £0.68 - £1.34
    £1.34 ex VAT
    £0.68 - £1.34
    £1.34 ex VAT
    £1.61  incl VAT
    Qty Discounts Available

  • 10-32 UNF x 5" Socket Cap Head Screw Self Colour 1936-1960

    View
    Price Each:
    £1.21 - £2.25
    £2.25 ex VAT
    £1.21 - £2.25
    £2.25 ex VAT
    £2.70  incl VAT
    Qty Discounts Available

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

    View
    Price Each:
    £0.10 - £0.35
    £0.35 ex VAT
    £0.10 - £0.35
    £0.35 ex VAT
    £0.42  incl VAT
    Qty Discounts Available

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

    View
    Price Each:
    £0.08 - £0.31
    £0.31 ex VAT
    £0.08 - £0.31
    £0.31 ex VAT
    £0.37  incl VAT
    Qty Discounts Available

  • 1/4" UNF x 7/16" Socket Cap Head Screw Self Colour 1936-1960

    View
    Price Each:
    £0.13 - £0.40
    £0.40 ex VAT
    £0.13 - £0.40
    £0.40 ex VAT
    £0.48  incl VAT
    Qty Discounts Available

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

    View
    Price Each:
    £0.06 - £0.29
    £0.29 ex VAT
    £0.06 - £0.29
    £0.29 ex VAT
    £0.35  incl VAT
    Qty Discounts Available

  • 1/4" UNF x 9/16" Socket Cap Head Screw Self Colour 1936-1960

    View
    Price Each:
    £0.10 - £0.35
    £0.35 ex VAT
    £0.10 - £0.35
    £0.35 ex VAT
    £0.42  incl VAT
    Qty Discounts Available

  • 1/4" UNF x 5/8" Socket Cap Head Screw Self Colour 1936-1960

    View
    Price Each:
    £0.10 - £0.35
    £0.35 ex VAT
    £0.10 - £0.35
    £0.35 ex VAT
    £0.42  incl VAT
    Qty Discounts Available

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

    View
    Price Each:
    £0.09 - £0.33
    £0.33 ex VAT
    £0.09 - £0.33
    £0.33 ex VAT
    £0.40  incl VAT
    Qty Discounts Available

  • 1/4" UNF x 7/8" Socket Cap Head Screw Self Colour 1936-1960

    View
    Price Each:
    £0.08 - £0.33
    £0.33 ex VAT
    £0.08 - £0.33
    £0.33 ex VAT
    £0.40  incl VAT
    Qty Discounts Available

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

    View
    Price Each:
    £0.09 - £0.34
    £0.34 ex VAT
    £0.09 - £0.34
    £0.34 ex VAT
    £0.41  incl VAT
    Qty Discounts Available

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

    View
    Price Each:
    £0.10 - £0.35
    £0.35 ex VAT
    £0.10 - £0.35
    £0.35 ex VAT
    £0.42  incl VAT
    Qty Discounts Available

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

    View
    Price Each:
    £0.12 - £0.38
    £0.38 ex VAT
    £0.12 - £0.38
    £0.38 ex VAT
    £0.46  incl VAT
    Qty Discounts Available

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

    View
    Price Each:
    £0.12 - £0.39
    £0.39 ex VAT
    £0.12 - £0.39
    £0.39 ex VAT
    £0.47  incl VAT
    Qty Discounts Available

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

    View
    Price Each:
    £0.12 - £0.39
    £0.39 ex VAT
    £0.12 - £0.39
    £0.39 ex VAT
    £0.47  incl VAT
    Qty Discounts Available

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

    View
    Price Each:
    £0.15 - £0.44
    £0.44 ex VAT
    £0.15 - £0.44
    £0.44 ex VAT
    £0.53  incl VAT
    Qty Discounts Available

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

    View
    Price Each:
    £0.20 - £0.53
    £0.53 ex VAT
    £0.20 - £0.53
    £0.53 ex VAT
    £0.64  incl VAT
    Qty Discounts Available

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

    View
    Price Each:
    £0.20 - £0.53
    £0.53 ex VAT
    £0.20 - £0.53
    £0.53 ex VAT
    £0.64  incl VAT
    Qty Discounts Available

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

    View
    Price Each:
    £0.32 - £0.72
    £0.72 ex VAT
    £0.32 - £0.72
    £0.72 ex VAT
    £0.86  incl VAT
    Qty Discounts Available

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

    View
    Price Each:
    £0.36 - £0.79
    £0.79 ex VAT
    £0.36 - £0.79
    £0.79 ex VAT
    £0.95  incl VAT
    Qty Discounts Available

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

    View
    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

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

    View
    Price Each:
    £0.59 - £1.19
    £1.19 ex VAT
    £0.59 - £1.19
    £1.19 ex VAT
    £1.43  incl VAT
    Qty Discounts Available

  • 1/4" UNF x 5" Socket Cap Head Screw Self Colour 1936-1960

    View
    Price Each:
    £0.52 - £1.06
    £1.06 ex VAT
    £0.52 - £1.06
    £1.06 ex VAT
    £1.27  incl VAT
    Qty Discounts Available

  • 1/4" UNF x 6" Socket Cap Head Screw Self Colour 1936-1960

    View
    Price Each:
    £0.71 - £1.38
    £1.38 ex VAT
    £0.71 - £1.38
    £1.38 ex VAT
    £1.66  incl VAT
    Qty Discounts Available

  • 5/16" UNF x 1/2" Socket Cap Head Screw Self Colour 1936-1960

    View
    Price Each:
    £0.11 - £0.37
    £0.37 ex VAT
    £0.11 - £0.37
    £0.37 ex VAT
    £0.44  incl VAT
    Qty Discounts Available

  • 5/16" UNF x 5/8" Socket Cap Head Screw Self Colour 1936-1960

    View
    Price Each:
    £0.12 - £0.38
    £0.38 ex VAT
    £0.12 - £0.38
    £0.38 ex VAT
    £0.46  incl VAT
    Qty Discounts Available

  • 5/16" UNF x 3/4" Socket Cap Head Screw Self Colour 1936-1960

    View
    Price Each:
    £0.13 - £0.41
    £0.41 ex VAT
    £0.13 - £0.41
    £0.41 ex VAT
    £0.49  incl VAT
    Qty Discounts Available

  • 5/16" UNF x 7/8" Socket Cap Head Screw Self Colour 1936-1960

    View
    Price Each:
    £0.13 - £0.40
    £0.40 ex VAT
    £0.13 - £0.40
    £0.40 ex VAT
    £0.48  incl VAT
    Qty Discounts Available

  • 5/16" UNF x 1" Socket Cap Head Screw Self Colour 1936-1960

    View
    Price Each:
    £0.14 - £0.43
    £0.43 ex VAT
    £0.14 - £0.43
    £0.43 ex VAT
    £0.52  incl VAT
    Qty Discounts Available