A square nut is a four-sided nut. Compared to standard hex nuts, square nuts have a greater surface in contact with the part being fastened, and therefore provide greater resistance to loosening (though also greater resistance to tightening). They are also much less likely to become rounded-off after repeated loosening/tightening cycles. Square nuts are typically mated with square-headed bolts. Square nuts are used along with flat washers in order to avoid damage from its sharp edges and help to increase the strength of the fastener.
|Material：||Carbon Steel, Alloy Steel, Stainless Steel, Brass|
|Grade：||SAE J995 Gr.2, 5,8; CL4, 5, 6, 8, 10, 12 / ASTM A563 Gr. A; SAE J995 Gr.2|
|Thread：||M, UNC, UNF|
|Finish：||Plain, Zinc Plated(Clear/Blue/Yellow/Black), Black oxide, Nickel, Chrome, H.D.G|
|Packing：||Bulk in cartons (25kg Max.) + wooden pallets or according to customer demand.|
|Application：||Structural steel industry, Metal building industry, Mechanical equipment industry,|