1″-8 Zinc Plated Steel Coarse Thread Square Nuts (3 pcs.)
Diameter: 1″ Thickness: 7/8″ Material: Steel Finish: Zinc Driver Type: 1-1/2″ Wrench Thread Size: 8 (Coarse) Type: Square Nut Box of 3. 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). Square nuts are typically mated with square-headed bolts.