Comparison : Item # JPHS3L 1420, JPHS3L 1420 - 1/4-20 Locking 3 Projection Hex Weld Nut
Item # JPHL3L 1420, JPHL3L 1420 - 1/4-20 Locking 3 Projection Hex Weld Nut
Item # JPHS3L 51618, JPHS3L 51618 - 5/16-18 Locking 3 Projection Hex Weld Nut
Item # JPHL3L 51618, JPHL3L 51618 - 5/16-18 Locking 3 Projection Hex Weld Nut
Item # JPHS3L 3816, JPHS3L 3816 - 3/8-16 Locking 3 Projection Hex Weld Nut