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1/2" UNF x 1 1/4" Socket Countersunk Screws (ANSI B18.3) - High Tensile Steel Self Colour

Quantity Range

Unit Price

Unit Saving

1 - 4

£1.03

No Saving

5 - 9

£0.93

£0.10

10 - 24

£0.82

£0.21

25 - 49

£0.76

£0.27

50 - 99

£0.71

£0.32

100 - 499

£0.65

£0.38

500 - 999

£0.54

£0.49

1000+

£0.43

£0.60

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1/2" UNF x 1 1/4" Socket Countersunk Screws (ANSI B18.3) - High Tensile Steel Self Colour

Socket Countersunk Screws feature an internal socket drive and are fastened with a Hexagonal/Allen key. The slanted neck and flat top allow for Socket Countersunk Screws to lay flush with the fastened surface or raised when paired with a Cup/Countersunk Washer.

These UNF Socket Button Head Screws are made from High Tensile Steel and have a black self colour finish.

For larger quantities or items not listed, please email sales@gwr-fasteners.co.uk and one of our team will provide you with a quotation.

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  • Thread Diameter:
    1/2" UNF
  • Threads Per Inch:
    20 TPI
  • Head Diameter (Max):
    0.938"
  • Head Length (Max):
    0.251"
  • Length Including the Head:
    1 1/4"
  • Allen Key Size:
    5/16"
  • Fully Threaded:
    Yes
  • Manufacturing Standard:
    ANSI B18.3
  • Material:
    High Tensile Steel
  • Finish:
    Self Colour Black
  • Product Code:
    HT-CSK-1/2UNF-11/4