NAS BOLTS

These fine-threaded, dimpled-head hex bolts have a minimum tensile strength of 160,000 psi and a minimum shear strength of 95,000 psi. Thread length is consistent within each diameter (1103/6203 series have a shorter thread), and grips are available in 1/16” increments beginning at 1/16”. Used in applications where a premium-quality, high strength bolt is necessary NAS6203 nominal diameter of 3/16 inch (0.1875") NAS6204 nominal diameter of 1/4 inch (0.25") NAS6205 nominal diameter of 5/16 inch (0.3125") NAS6206 nominal diameter of 3/8 inch (0.375") Specified NAS series bolts, the dash number is the grip in 1/16” (0.0625”) increments, e.g. –18 = 18 x 0.0625” = 1.125” = 18/16”.