
Fittings
Leak-tight connections in BSP, NPT and metric threads.
Product Category
Knurled, helical and ultrasonic inserts for plastics that hold.

A brass insert is judged by two failures it must never have: pull-out and rotation. Rajhans manufactures straight-knurled, diamond-knurled, helical and ultrasonic inserts with crisp, full-depth knurls and concentric bores that seat true in the mould.
We supply moulders of PPR/CPVC pipe fittings, electrical accessories and engineering plastics across India and export markets, in standard metric series or fully custom geometries to drawing.
| Material grades * | CW614N (CuZn39Pb3), CW617N, IS 319 Grade I/II |
|---|---|
| Size range * | Ø3 mm – Ø65 mm bar stock |
| Threading * | BSP, BSPT, NPT, Metric, UNC/UNF — gauged |
| Tolerance * | Up to ±0.01 mm on critical dimensions |
| Finishes * | Natural, nickel, tin or chrome plating; deburred & polished |
| Thread sizes * | M2 – M12 internal; 1/8" – 1" BSP |
| Knurl patterns * | Straight, diamond, helical — full-depth |
* Indicative specification — confirm against your drawing.



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