ADD THIS KIT TO OUR 1496 GRADE 8 KIT TO HAVE ALL THE ODD SIZES AS WELL. NUT, BOLT, WASHER AND LOCK WASHER ADD ON KIT. THIS KIT CONTAINS THE FOLLOWING 320 PIECE GRADE 8 COARSE THREAD. ALLOY GRADE 8 HEX HEAD CAP SCREW / BOLT ZINC AND YELLOW.