N36-40F40F Dixon Aluminum Double Male - Style N36 - Rocker Lug - 4" Male NST(NH) x 4" Male NST(NH)Part Number Thread Thread Old Part #: Weight (Lbs.) N36 10F10F 1" Male NST(NH) 1" Male NST(NH) 0. 1940 N36 15F15F 1 1 2" Male NST(NH) 1 1 2" Male NST(NH) ADMR15F15F 0. 300 N36 15F20T 1 1 2" Male NST(NH) 2" Male NPT 0. 498 N36 15F25F 1 1 2" Male NST(NH) 2 1 2" Male NST(NH) 0. 9460 N36 25F25F 2 1 2" Male NST(NH) 2 1 2" Male NST(NH) ADMR25F25F 0. 7700 N36 25F30F 2 1 2" Male NST(NH) 3" Male NST(NH) 0. 9550 N36 25F30T 2 1 2" Male NST(NH) 3" Male NPT 0.