STZ Industries 1/4 in MIP x 1/4 in MIP Black Steel Nipple, 5-1/2 in long, is built for dependable, leak‑free connections in steel piping systems. With identical 1/4 in MIP (Male Iron Pipe) threads on both ends, this nipple provides a straightforward link between fittings, valves, and other components in potable water, heating, and general purpose piping applications.
The finish and construction deliver enduring value: a black steel body designed to resist everyday wear, a lead‑free composition that supports code compliance in potable systems, and a length that fits a range of common installation layouts. This is a practical, no‑nonsense solution for projects where robust steel connections matter as much as tidy, reliable thread engagement.
Key specifications
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End 1 diameter/type: 1/4 in MIP
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End 2 diameter/type: 1/4 in MIP
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Length: 5-1/2 in
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Material: Steel
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Finish: Black
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Maximum pressure: 188 psi
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Maximum temperature: 400°F
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Lead content: Lead-free
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Packaging: Bagged
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Product type: Nipple
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Brand: STZ Industries
Applications and use cases
- Residential and commercial potable water lines where a reliable 1/4 in MIP to 1/4 in MIP connection is needed
- Hydronic heating and radiant systems requiring sturdy steel nipples with durable thread engagement
- General purpose steel piping assemblies in service bays, workshops, and maintenance rooms
- Situations demanding a lead-free component to meet plumbing codes while maintaining strong mechanical performance
Why this nipple stands out
Unlike generic fittings, this STZ nipple emphasizes real‑world utility: a compact 5-1/2 inch length that fits tight spaces, two identical MIP threaded ends for flexible routing, and a black steel finish that resists minor corrosion and helps with identification in complex assemblies. The lead-free construction supports safe use in potable systems, while the rated pressure and temperature specifications give you confidence for hot water and light industrial tasks.
Installation tips and best practices
- Clean and deburr both input and output threads before assembly to ensure a clean seal
- Apply an appropriate pipe thread sealant or PTFE tape compatible with steel threads to prevent leaks
- Hand‑tighten, then snug with a wrench—avoid over‑torquing to minimize thread damage
- Inspect joints after initial pressure tests; re‑seal if any signs of leakage appear
- Store bagged components in a dry area to preserve finish and thread integrity
Designed for professionals and DIY enthusiasts tackling steel piping projects, the STZ Industries 1/4 in MIP x 1/4 in MIP Black Steel Nipple delivers dependable connections, straightforward installation, and long‑lasting performance. Add it to your next piping upgrade or repair and experience a practical, code‑friendly solution that keeps your system running smoothly.
