Comparison : Item # JPHS6 1420, JPHS6 1420 - 1/4-20 Hex Weld Nut, 6 Projection
Item # JPHM6 1420, JPHM6 1420 - 1/4-20 Hex Weld Nut, 6 Projection
Item # JPHL6 1420, JPHL6 1420 - 1/4-20 Hex Weld Nut, 6 Projection
Item # JPHS6 51618, JPHS6 51618 - 5/16-18 Hex Weld Nut, 6 Projection
Item # JPHM6 51618, JPHM6 51618 - 5/16-18 Hex Weld Nut, 6 Projection