One-Stop Custom Fasteners — Casting, Machining & Finishing, All In-House
From investment casting to precision machining — a complete outsourcing solution for fasteners. Engineered for brand owners and SMEs, supporting everything from prototyping to full-scale production.
Manufacturing Experience
Certified Alloys for Automotive
mm CNC Tolerance
Year Capacity
Why Choose Allied Metal for Your Fasteners
We don’t just make parts — we engineer reliability into every fastener. Here’s what sets us apart.
Precision Investment Casting
Silica sol process for stainless steel, heat‑resistant alloys, and nickel‑based superalloys. Ideal for intricate fasteners, thin‑wall structures, and curved profiles — reducing secondary machining.
- Dimensional accuracy: CT5-7
- Max casting weight: 65 kg
- Minimum wall thickness: 2.5 mm (typical)
Precision CNC Machining
Equipped with DMG MORI and MAZAK machining centres for flange faces, threaded holes, sensor ports, and complex profiles — ensuring interchangeability and assembly fit.
- Positioning accuracy: ±0.003 mm
- Critical features: IT5 tolerance
- 100% CMM inspection
In‑House Lab & Inspection
Every batch is verified in our accredited lab. From raw material verification to final dimensional inspection — we test in‑house so you don’t have to.
- CMM: ±0.001 mm accuracy
- Spectrometer / OES analysis
- Universal tester: 300 kN
Surface & Heat Treatment
- Hardness control: ±1.5 HRC
- Aluminising depth: 0.05–0.15 mm
- Ceramic coating withstands >1000°C
Prototyping in 10–15 days Flexible volumes (10 to 100,000+ pcs) Casting + CNC + heat treatment — one source
How We Improve Fastener & System Performance
Optimised fillet radii and thread rolling improve fatigue life. Topology optimisation can reduce weight by 10–20%.
Zn‑Ni, Dacromet, Geomet, electropolishing and more — proven to C5‑H, with salt spray testing ≥1000 hours.
Pre‑applied micro‑encapsulated adhesive, nylon patches, deformed threads, and integrated O‑ring grooves.
Laser marking / 2D codes linked to our ERP, tracking from melt lot to finished part — ideal for automotive and rail.
Fastener Types We Manufacture
Standard and custom‑engineered fasteners, supported by casting, machining, heat treatment and surface finishing — all under one roof.
- Threaded Fasteners
- Hex bolts
- Socket head cap screws
- Flange bolts
- T‑head bolts
- Studs / double‑end studs
- Anchor bolts
- Self‑tapping screws
- Wood screws
- Nuts & Washers
- Hex nuts
- Flange nuts
- Wing nuts
- Lock nuts
- Plain washers
- Spring washers
- Lock washers
- Tooth lock washers
- Rivets & Pins
- Solid rivets
- Blind rivets
- Cotter pins
- Dowel pins
- Taper pins
- Spring pins
- Grooved pins
- Custom & Special Fasteners
- Custom threaded inserts
- Tube fittings / hydraulic adapters
- Screw‑washer assemblies
- Cast‑to‑shape specials
- Multi‑function assemblies
- OEM / ODM to print
Material Advantages — Custom · Diverse
With over 40 certified alloys and full in‑house casting and machining, we support custom alloy development for corrosion resistance, high strength, and extreme temperatures — all fully RoHS and REACH compliant.
Custom capabilities: ✓ Alloy tailoring to print ✓ Special‑property development ✓ Low‑volume trials ✓ Full traceability
Key Industries We Serve
Engines, chassis, braking systems — IATF 16949 certified.
Weather‑resistant fasteners for harvesters and tractors.
Pumps, compressors, gearboxes — heavy‑duty connections.
Wind, solar, and power transmission structures.
High‑strength connections for steel structures and bridges.
Small‑scale, high‑accuracy, biocompatible materials.
Exhaust Parts · Manufacturing Showcase
Examples of typical exhaust components with process, material, and part details.
Factory & Manufacturing Facilities
Our Collaboration Process
A transparent, efficient workflow from initial inquiry to volume production, with dedicated project management at every stage.
Client Testimonials
What engineers and procurement leaders say about our powertrain parts
“Allied Metal’s one‑stop service from casting to machining saved us from juggling multiple suppliers. The bolt fatigue performance exceeded our expectations.”
Agricultural machinery fasteners
“As a brand owner without our own factory, Allied provided complete production support. From prototype to volume, the quality has been consistently excellent.”
Industrial equipment connectors
“Their custom capability is outstanding. The special flange nuts we needed — other suppliers couldn’t cast them, but Allied did, and at a great cost.”
Hydraulic system fasteners
“They truly understand EU environmental requirements. All surface treatments meet REACH, and the compliance documentation simplified our import process.”
Sustainable fastening solutions
FAQs
What is the minimum order quantity (MOQ)?
No MOQ. We support prototype quantities (10–50 pcs) through to high-volume production.
What file formats do you accept?
PDF, DXF, DWG, STEP (.stp), and IGES. 3D models preferred. Physical samples or hand sketches also accepted.
What are your typical lead times?
Prototypes: 7–15 days. Production: 20–35 days. Expedited options available.
Do you provide material certifications?
Yes. EN 10204 3.1 certificates (3.2 on request) with full dimensional, mechanical and chemical test reports.
Are your products EU-compliant?
Yes. Fully RoHS and REACH compliant. IATF 16949 and ISO 9001 certified. PPAP, FMEA, 8D available.
Do you offer surface treatments?
Yes — in-house. Electropolishing, anodising, Dacromet, Zn‑Ni alloy, phosphating, nitriding, carburising, ceramic coatings.
How do you ensure quality?
In-house accredited lab with CMM (±0.001 mm), spectrometer, universal tester (300 kN), salt spray, optical projectors. 100% critical dimension inspection.
Get Your Custom Fastener Solution
From material selection and DFM analysis to sample delivery — our team supports you at every stage. We help brand owners bring products to market faster.
B2B engineering partnerships · Low‑volume flexible start · Seamless transition from prototyping to production