Heavy Hex Structural Nuts A 563 D H Plain USA
A six-sided internally threaded fastener which is both thicker and wider across the flats than a same-sized finished hex nut. Nuts in sizes 7/16 & smaller shall be double chamfered. Larger sizes are either double chamfered or chamfered on top with a washer faced bearing surface
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                            Click here to see product specs                        
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        Showing  1  -  6  of 6 products