Threaded couplings are often used to connect water pipes such as smaller diameter water pipes, compressed air pipes, and low-pressure steam pipes with threaded ends. The screw threads of the steel joints can be coated with glue to make sure a tight enough welding.

Threaded elbows and threaded pipe tees are among threaded connectors made from SK Fitting Valve. Cross connectors with threads, etc. Carbon steel, alloy steel, stainless steel, and other metals are used to make these adapter couplings.

- Galvanized steel threaded fittings

BIS brand used high-quality plumbing fittings
- black threaded steam fittings.

SA brand certified for firefighting applications
- Stainless steel threaded fittings
- Seam lugs*
- Plugs
- Stainless steel three-way threaded
- Couplings*
- Caps
- Union Couplings (Unions)

* Products marked with (*) are manufactured by the company *