7/8" A194 2H HEAVY HEX NUT

7/8" 2H Heavy Hex Nut - A194

(Priced per each / Pkg Qty = 25 per/box)

Heavy hex nuts are thicker and wider than finished hex nuts of the same size, which makes them the strongest of comparably-graded nuts. Their additional strength comes from increased thread engagement, which is due to their thickness, and greater resistance to dilation (expansion or stretching) because of their larger width. The heavy hex nut's increased size yields a larger bearing surface and improved wrenchability.The ASTM A194 specification covers carbon, alloy and stainless steel nuts intended for use in high-pressure and/or high-temperature service.  Hex is short for hexagon, which means they have six sides. Lock washers may used with heavy hex nuts.