3/16"~5/8" BSW Hex Head Screw A2 Stainless Steel Hex Bolts Imperial Fully Thread

3/16" BSW（24TPI）. 1/4"BSW （20TPI）. 5/16"BSW （18TPI）. 3/8" BSW（16TPI）. 1/2" BSW（12TPI）. 5/8" BSW（11TPI）. ● Standard: BSW. ● Fully Threaded （Note: 5/16"-18 BSW, this size of 3-1/4" length is half thread.

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