Hexagon Setscrews and Hexagon bolts are essentially the same, apart from one key difference. This being that setscrews have a fully threaded shaft, right up to the head, whereas bolts are only partially threaded and after a certain length, will have a section of plain unthreaded shaft. These are tightened and loosened with a standard spanner matching the head diameter (across the flats) and are made from bright zinc plated 8.8 grade high tensile steel.
Customer reviews
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Thread Diameter:1/4" UNC
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Threads Per Inch:20 TPI
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Length Excluding the Head:2"
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Head Diameter (A/F):0.425" - 0.438"
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Head Length (Min):0.15"
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Head Length (Max):0.188"
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Fully Threaded:No
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Material:High Tensile Steel (8.8)
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Finish:Bright Zinc Plated (CR3)
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Condition:New
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Product Code:Z-HB-1/4UNC-2