Technical sheet · Molding inserts
Brass Molding Inserts
Also designated: Brass threaded inserts · PPR brass inserts · CPVC / UPVC / PVC pipe-fitting inserts · Mould-in brass inserts
Brass mould-in inserts for PPR, CPVC, UPVC and PVC fittings and plastic housings — thread, knurl and plating to the mould drawing.

General
What this product is
Brass molding inserts are the metal thread that sits inside a plastic or PPR/CPVC fitting. Pipe-fitting and appliance OEMs specify the knurl, the thread (BSP, NPT or metric) and nickel or chrome plating. We machine CW614N inserts from the housing or fitting drawing, freeze a first article, then run counted production lots. This is the same insert family listed on our Alibaba Gold Supplier store — not a trader’s mixed carton.
Pipe-fitting and plastic-housing OEMs reject inserts when knurl OD or thread class drifts. We gauge both, plate as specified, and pack counted to the SKU.
At a glance
- — Mould-in inserts for PPR / CPVC / UPVC / PVC fittings
- — BSP, NPT and metric threads
- — Knurl / hex OD from the mould drawing
- — Natural, nickel or chrome plated
STPL · Gold Supplier 12 yrs · CW614N / EN
Technical data
Specification
- Product type
- Brass mould-in / heat-stake insert for plastic and PPR-family fittings
- Mate
- PPR, CPVC, UPVC, PVC pipe fittings and thermoplastic housings
- Threads
- BSP / NPT / metric — size on RFQ (typical ½″–2″ fitting inserts and M3–M12 housing inserts)
- Knurl / OD
- As per mould drawing or approved sample
- Material
- CW614N (CuZn39Pb3) / EN 12164
- Finish
- Natural brass, nickel or chrome — as specified
Materials
- — CW614N / EN 12164
Finishes
- — Natural brass
- — Nickel plated
- — Chrome plated
Applications
- — PPR and CPVC fittings
- — Plastic pipe systems
- — Appliance housings
- — Overmoulded connectors
Standards
- — Material EN 12164
- — Thread ISO 228 / NPT / metric as specified
- — REACH / RoHS against the lot
Inspection
- — Thread gauges
- — Knurl / OD vs first article
- — Plating on coated lots
Documents with shipment
- — Commercial invoice
- — Packing list
- — Certificate of origin
- — Material note against the alloy of the lot
- — REACH / RoHS statement on request, against plating and alloy of the lot
- — ISO 9001 / 14001 / 45001 PDFs with the first RFQ reply
Standard range
Variants we quote
PPR / CPVC fitting insert
Male or female thread, knurl for overmould
Housing mould-in insert
Metric thread, knurl OD from plastic drawing
NPT insert
US thread for export fittings
Commercial
Samples, packing, Incoterms
- Manufacturer
- Satyam Techworks Pvt. Ltd., Dared, Jamnagar — factory direct, not a trader
- Alibaba
- Gold Supplier · 12 years (since 2014)
- Samples
- First-article sample before the production lot. Typical sample 10–50 pcs.
- MOQ
- Quoted against SKU, plating and any tooling. Typical production from 500 pcs for catalogue bars; OEM inserts often 1,000+.
- Lead time
- Quoted on RFQ. Typical: samples 10–18 days after drawing freeze; production 25–40 days after sample approval.
- Incoterms 2020
- FOB Mundra / Nhava Sheva. All Incoterms 2020 accepted.
- Packing
- Poly bag / inner box / export carton. Palletised on request. Carton labels to your warehouse SKU and PO.
- Payment
- As agreed on the proforma. Standard export terms.
- Count
- Counted bags or trays to moulding-line SKU
How to order this item
Send the fields below on the Export Desk RFQ. We reply within one business day with alloy, finish, first-article option and Incoterms 2020 (FOB Mundra / Nhava Sheva; all terms accepted) — as the manufacturer, not a trader.
- 01Product name as listed here (or your Alibaba / internal SKU)
- 02Drawing, STEP/PDF or approved sample
- 03Alloy if known (CW614N / CW617N / other)
- 04Finish (natural brass / nickel / tin) and any salt-spray note
- 05Annual quantity and first PO size
- 06Destination port and Incoterm
- 07Inspection standard and required documents
- 08Fitting size / housing drawing
- 09Thread form (BSP / NPT / metric)




