FLANGE BOLTS, DIMENSIONAL STANDARDS ASME B18.2.1, DRIVE HEX, DRIVE SIZE 3/8 IN, FASTENER LENGTH 1 1/4 IN, FINISH ZINC PLATED, FLANGE DIAMETER 13/16 IN, FLANGE TYPE SERRATED, HEAD HEIGHT 25/64 IN, HEAD WIDTH 9/16 IN, MANUFACTURER LOCATION GLOBALLY SOURCED, MATERIAL STEEL, MATERIAL GRADE/CLASS GRADE 5, MATERIAL QUALITY STANDARDS SAE J429, MINIMUM THREAD LENGTH 1 1/4 IN, PACK SIZE BULK PACK, SYSTEM OF MEASUREMENT INCH, TENSILE STRENGTH 120,000 PSI,