Custom Brass CNC Turned Flare Adapter Fittings With Hex Flats And Threads
Why These Fittings Seal, Not Seep
A fitting that weeps costs you a callback, a warranty claim and a customer. Three things cause it: a seat cut at the wrong angle, threads that were never gauged, and burrs left inside the bore. All three are controlled here.
·Seat angle held true. The flare cone and seat are cut in one setup, so the sealing face meets the mating line square.
·Threads checked, not assumed. Pitch, depth and runout are verified with go and no‑go gauges before packing.
·Clean bore, clean chamfers. Deburred inside and out, so no chip ends up in your line.
·Hex flats cut sharp. Uniform across‑flats for a proper wrench fit and consistent torque.
·Corrosion handled. Standard H59 brass for normal service, dezincification resistant and lead‑free grades when your line demands it.
Part At A Glance
Material
H59 brass, machined from solid bar
Body
two external threaded sections with a mid hex collar
Sealing ends
conical flare nose one end, flare seat the other, through bore
Bore
small diameter through passage, chamfered at both mouths
Finish
as‑machined brass with clean thread flanks
Illustrated sample
about 50 mm long with hex flats at the centre; your design can differ completely
Options
NPT, BSP, UNF or metric threads, 37 or 45 degree flare seats, nickel or chrome plating
H59 Brass Material Profile
| Property | Value In Machined Parts | Why It Matters In Service |
|---|---|---|
| Machinability | Excellent, free cutting | Crisp threads and clean seats at production speed |
| Corrosion resistance | Good in air, fuel, gas and water lines | Long service life without rust |
| Dezincification risk | Grade dependent | DZR grades available for aggressive water |
| Conductivity | Electrically and thermally conductive | Suits instrument and bonding duties |
| Magnetic response | Non magnetic | Safe for sensor and instrument lines |
| Sparking risk | Non sparking | Useful near fuel and gas handling |
| Temperature range | Wide for common line temperatures | Stable in hot and cold service |
| Compliance options | Lead‑free and RoHS compliant grades on request | Meets potable water and export rules |
CNC Turning Capability Table
| Feature | What We Deliver |
|---|---|
| Turning | Bodies, steps, shoulders, relief grooves and bores from solid brass bar |
| Threading | NPT, BSP, BSPT, UNF, UNC and metric threads on external or internal features |
| Seat forming | 37 degree and 45 degree flare cones and seats, cut in a single setup |
| Hex and flats | Hex collars, spanner flats and keyed faces cut to across‑flats size |
| Tolerance | Standard plus/minus 0.05 mm; critical diameters and seat angles reviewed to tighter values |
| Testing | Thread gauging standard; pressure or leak testing arranged per project |
| Order size | Prototypes from 10‑50 pieces; production runs to 100,000 pieces |
| Files accepted | PDF, STEP, IGS, DWG; samples and sketches also welcome |
Typical Applications
Quality You Can Verify, Not Just Trust
Shenzhen Perfect Precision Products Co., Ltd. runs a 20‑year‑old factory with 6,000 square meters of floor space, 100+ CNC machines and a full ERP system.
- Four‑stage control: incoming material checks, first‑piece inspection, batch sampling and 100% pre‑shipment QC.
- Digital proof: 3D inspection equipment, material certificates and sample inspection reports on request.
- Traceability: every batch runs through the ERP, so lots are easy to follow and repeat.
- After‑sales: report any issue by call, video conference or email within one month; our team responds with a solution within one week.
Samples And Lead Times
- ·Sample: 1‑2 weeks
- ·Production: 3‑4 weeks after approval
- ·Quote: send PDF, STEP, IGS or DWG, or simply photos and size notes of the part you need
About Us
Processing Material
Application
POSITIVE FEEDBACK
FAQ
1. Are you a manufacturer or a trading company?
We are a factory located in Shenzhen, China, with 20 years of rich experience, covering 6000 square meters. Complete facilities, including 3D quality inspection equipment, ERP system and 40 machines. If necessary, we can provide you with material certificates, sample quality inspection and other reports.
2. How to get a quote?
Detailed drawings (PDF/STEP/IGS/DWG...), including quality, delivery date, materials, quality, quantity, surface treatment and other information.
3. Can I get a quotation without drawings? Can your engineering team draw for my creativity?
Of course, we are also glad to receive your samples, pictures or detailed size drafts for accurate quotation.
4. Can you provide samples before mass production?
Of course, the sample fee is necessary. If possible, it will be returned during mass production.
5. What is the delivery date?
Generally, the sample lasts for 1‑2 weeks and the batch production lasts for 3‑4 weeks.
6. How do you control quality?
(1) Material Inspection ‑ Check material surfaces and approximate dimensions.
(2) First inspection of production ‑ ensure critical dimensions in mass production.
(3) Sampling inspection ‑ check the quality before delivery to the warehouse.
(4) Preshipment inspection ‑ 100% inspection by QC assistant before shipment.
7. After‑sales service team
If you have any problems after receiving the product, you can provide feedback through voice call, video conference, email, etc. within one month. Our team will provide you with solutions within a week.
