Description

A square nut is a fastener with four sides that is used to hold objects together with a bolt. Square nuts are often used with square-headed bolts, but they can also be used with pole line hardware. How square nuts work Greater surface area Square nuts have a larger surface area than hexagonal nuts, which provides more resistance to loosening. Less likely to round off Square nuts are less likely to become rounded off after repeated loosening and tightening. Used with washers Square nuts are often used with flat washers to increase the strength of the fastener and protect it from damage. Where square nuts are used Furniture: Square nuts are used in furniture production. Railroads: Square nuts are used in railroad applications. Construction: Square nuts are used in construction. Roofing: Square nuts are used in roofing to ensure a long lasting connection. Electro technology: Square nuts are used in electro technology for switches and sockets. Types of square nuts Square nuts can have standard, fine, or coarse threading. Square nuts can be plated with zinc yellow, plain, zinc clear, tin, and cadmium. Square nuts can meet ASTM A194, ASTM A563, or ASTM F594 standards.