‹› Image Image M-Series ARO Pneumatic Manual Male Threaded Coupler Markets Chemical Processing, Construction, Maintenance Repair Operations (MRO), Mining, Steel Processing Product Options Hide lower priority columns Part Number All 2MM2-B2MM3-BLength All 2.13"Maximum OD All 0.87"Body Size All 1/4"Thread All NPTThread Size All 1/4"3/8"Pipe Thread All NPT / NPTFMaterial All Brass 2MM2-B 2.13" 0.87" 1/4" NPT 1/4" NPT / NPTF Brass 2MM3-B 2.13" 0.87" 1/4" NPT 3/8" NPT / NPTF Brass