Carbon Steel Pipe Threaded Nipples — Distributors & Factories

Rugged carbon-steel threaded nipples from ISO-certified factories for distributors who need consistency and speed. Precision-cut NPT/BSPT threads on both ends, deburred and gauged for leak-tight fits. Sizes 1/4–4 in, SCH 40/80 and custom lengths. Finishes: black, zinc-plated, hot-dip galvanized, or epoxy-coated for corrosion resistance. Meets ASTM A106/A53 or equivalent. Ideal for water, gas, steam, and fire-protection lines. OEM branding, heat-number traceability, MTCs, and fast palletized bulk shipping.