5/16" UNF diameter
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Picture shown for illustration purpose only.5/16 UNF x 7/8 H/T Hex Setscrew, Zinc Plated£0.19 As low as £0.115/16" UNF x 7/8" Grade 5 High Tensile Hexagon Head Fully Threaded Setscrew BS 1768, Zinc Plated Learn More