The STZ Industries 1/4 in. MIP x 1/4 in. MIP Black Steel Nipple, 3-1/2 in. long, is a compact, durable connector designed to bridge two female-threaded fittings with reliability you can feel in every turn.
-
End connections: 1/4 in. MIP on both ends (MIP x MIP) for straightforward, secure threaded joins.
-
Material and finish: Solid steel with a black finish that resists corrosion in typical residential and light commercial piping applications.
-
Length: 3-1/2 inches, a practical size for tight spaces where longer nipples won’t fit.
-
Temperature and pressure tolerance: Rated for up to 188 psi and 400 degrees Fahrenheit, making it suitable for hot-water lines and other common piping tasks.
-
Lead-free: A lead-free option aligned with standard plumbing safety expectations.
-
Packaging: Sold bagged for easy handling and inventory management.
Where to use: This nipple is ideal for residential plumbing projects that require connecting two female 1/4 in. MIP fittings in water supply lines, appliance hookups, small-diameter piping on heating systems, or tight spaces where a compact connector is needed. The black steel construction provides dependable strength for everyday use and serviceability in protected environments.
- Connecting two female 1/4 in. MIP fittings in water supply lines
- Extending small-diameter piping in appliances or heating systems
- Repairing or modifying existing runs where space constraints limit longer nipples
Why this STZ nipple stands out: The combination of precise 1/4 in. MIP threads, durable black steel finish, and a practical 3-1/2 in. length delivers dependable performance in real-world installations. Lead-free construction adds peace of mind for potable-water applications, while the bagged packaging keeps parts organized for quick replacements on job sites.
Pro tips for best results
- Clean threads before installation and use an appropriate pipe thread sealant or PTFE tape rated for MIP connections.
- Hand-tighten fully, then snug with a wrench—avoid over-tightening to prevent thread damage or leaks.
- Ensure compatibility with adjacent metals to minimize galvanic corrosion in mixed-metal systems.