BBI® 455404 Fully Threaded Cap Screw, 9/16-18, 2 in L Under Head, 8 Grade, Alloy Steel, Zinc Yellow Bake CR+6

BBI® cap screw, fully threaded, measurement system: imperial, 9/16-18 thread, 2 in L under head, 8 grade, alloy steel, zinc yellow bake CR+6, UNF thread, 23/64 in H head, hex head, 150,000 psi tensile strength, material specification: ASTM B633-FE, ZN5 type 2, 33 to 39 HRC hardness.