Fastener Superstore Blog

Square Head Machine Bolts & Square Nuts

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Square Head Machine Bolts are available in steel with a plain finish. Combined with square nuts or hex nuts, square head machine bolts offer greater bearing surface for wrenching. We now also carry Battery Bolts, in steel with a zinc coating.

Square Nuts are used with square head bolts or with machine screws. The longer sides of the head create a greater bearing surface for wrenching. We carry several styles, materials & finishes in our Square Nut section, while smaller sizes can be found in the Machine Screw Nut section of our site.

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