1 1/4-12X6 Fine Thread Hex Cap Screw Grade 8 Zinc Yellow (Pack Qty 5) BC-12696CH8O

A six-sided internally threaded fastener whose thickness is .875 D where D is the nominal nut size and 1.5D is their width across the flats, made from low carbon steel. The most versatile and widely used nut design. Grade-2 nuts are for use with any low carbon bolt or screw that is not heat-treated, with a specified minimum tensile strength of 74,000 psi or less. Grade-2 nuts shall be made from a low carbon steel which conforms to the following chemical composition requirements-- Carbon: 0.47% maximum; Phosphorus: 0.12% maximum; Sulfur: 0.23% maximum.