1/4" UNC diameter
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Picture shown for illustration purpose only.1/4 UNC x 1.1/2 H/T Hex Setscrew, Zinc Plated£0.15 As low as £0.091/4" UNC x 1.1/2" Grade 5 High Tensile Hexagon Head Fully Threaded Setscrew BS 1768, Zinc Plated Learn More