3/8" UNF diameter
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Picture shown for illustration purpose only.3/8 UNF x 7/8 H/T Hex Setscrew, Zinc Plated£0.21 As low as £0.133/8" UNF x 7/8" Grade 5 High Tensile Hexagon Head Fully Threaded Setscrew BS 1768, Zinc Plated Learn More