Description
UNF SELF COLOUR STEEL COUNTERSUNK SOCKET SCREWS HIGH TENSILE 3/16 - 1/2"

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Thread - UNF (Imperial fine)
Grade - 12.9 High tensile steel, plain self colour black, none plated.
Length is measured total length including the head.

Thread pitches and Allen key sizes are -
3/16" - 32 with 1/8" key size
1/4" - 28 with 5/32"" key size
5/16" - 24 with 3/16" key size
3/8" - 24 with 7/32" key size
7/16" - 20 with 1/4" key size
1/2" - 20 with 5/16" key size

FREE 1st CLASS UK P&P* Photograph is for illustration only, these are not mixed packs. GET IT FAST - orders placed before 2pm are dispatched the same day (Mon-Fri).
Additional Information

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