3/8-16 X 4 1/4 HHCS GRADE 5
1-8 X 4 1/4 HHCS GRADE 8
1 3/4-8 X 4 1/4 A193 B7 HHB W/3 3/4 THR
1/2-13 X 4-1/4 HEX HEAD MAGNI 565 SILVER