High-Precision Turned Components & Custom Fasteners
The Federal Group USA is an industry-leading contract manufacturer specializing in high-volume custom screw machining services. Serving Tier-1 automotive, medical device, aerospace, renewable energy, and industrial equipment OEMs worldwide, we deliver micro-tolerance precision components engineered to exact drawing specifications.
With over four decades of engineering expertise, our facilities combine advanced multi-axis CNC Swiss lathes, high-speed multi-spindle automatic screw machines, and automated single-spindle turrets. Whether you require micro-miniature medical pins or robust industrial shafts, TFG USA delivers certified quality, optimized unit economics, and resilient global supply chain management.
Advanced Machinery
Single-spindle, multi-spindle, and multi-axis Swiss CNC equipment operating 24/7 for maximum cost efficiency.
ISO 9001:2015 QMS
Strict quality assurance with full traceability, CMM dimensional analysis, and PPAP Level 1-3 capability.
Material Versatility
Expert machining of stainless steel, brass, aluminum, titanium, Inconel, and engineering plastics.
Complete Finishing
Turnkey post-processing including heat treatment, anodizing, plating, passivating, and custom threading.
Engineering Specifications & Tolerances
Our automated production cells are built to satisfy the tightest engineering parameters for mission-critical applications.
Diverse Sectors We Serve
Precision screw machined parts are foundational components across modern technology and heavy industry. TFG USA delivers build-to-print components for global procurement teams who cannot afford downtime or quality escapes.
Electronics & Electrical
High-precision connector bodies, contact pins, male/female terminal studs, coax connectors, and threaded standoff inserts engineered for high conductivity and zero insertion failure.
Medical & Dental Devices
Biocompatible medical screws, titanium dental posts, surgical instrument components, needle hubs, and diagnostic fluidic valves machined under strict ISO quality standards.
Industrial Equipment & Hydraulics
Heavy-duty valve spools, hydraulic fittings, hardened shafts, custom bushings, high-pressure fasteners, and pump impellers manufactured for extreme wear resistance.
Selecting the Right Screw Machining Process
Choosing between Swiss CNC turning, turret screw machining, and multi-spindle automatic lathes depends on workpiece geometry, annual volume, material grade, and budget constraints. Our engineering team assists buyers in optimizing DFM (Design for Manufacturability) to reduce unit price.
Swiss CNC Machining
Ideal for: Long, slender parts, micro-diameters (<32mm), complex multi-axis geometries, and medical implants.
Key Advantage: The sliding headstock feeds material through a guide bushing directly adjacent to the cutting tool, eliminating part deflection and ensuring sub-micron concentricity.
Multi-Spindle Automatic Machining
Ideal for: Ultra high-volume runs (100,000+ pieces), cylindrical fasteners, sleeves, bushings, and high-speed production.
Key Advantage: Simultaneous machining operations across 6 to 8 spindles yield cycle times measured in seconds, delivering the lowest cost-per-part in high-volume manufacturing.
| Process Type | Diameter Range | Typical Tolerances | Optimal Volume | Primary Material Compatibility |
|---|---|---|---|---|
| Swiss CNC Machining | 0.5 mm - 32 mm | ±0.0002" (±0.005 mm) | 1,000 to 500,000+ | Titanium, Stainless 316L, Brass, Inconel |
| Multi-Spindle Lathes | 6 mm - 64 mm | ±0.0010" (±0.025 mm) | 50,000 to 10,000,000+ | Brass, Carbon Steel, Aluminum Alloys |
| Single-Spindle Turret | 3 mm - 76 mm | ±0.0005" (±0.012 mm) | 2,500 to 100,000 | Aluminum 6061/7075, Stainless 303/304 |
Comprehensive Raw Materials & Surface Treatments
TFG USA maintains direct partnerships with certified global metal suppliers, providing full chemical and mechanical mill test reports (MTRs) with every batch.
Machinable Alloys & Metals
- Aluminum: 2024, 6061-T6, 6082, 7075-T6 (Lightweight, corrosion-resistant)
- Brass & Copper: C36000 Free-Cutting Brass, Tellurium Copper, Bronze alloys
- Stainless Steel: 303, 304/304L, 316/316L, 17-4 PH, 416, 420 hardened steel
- Alloy & Carbon Steel: 1215, 12L14 free-machining steel, 4140, 8620 structural alloys
- Exotics: Titanium Grade 5 (Ti-6Al-4V), Inconel 625/718, Hastelloy, Monel
Secondary Operations & Surface Finishing
- Precision Threading: Cut threads, roll threading, micro-pitch internal/external threads
- Heat Treatment: Case hardening, induction hardening, annealing, stress relieving
- Surface Plating: Anodizing (Type II/III), Electroless Nickel, Zinc, Cadmium, Gold/Silver
- Finishing: Passivation (ASTM A967), Electropolishing, Centerless Grinding, Deburring
ISO 9001:2015 Quality Control & Global Trade Assurance
Overseas procurement requires uncompromised trust in quality and delivery. The Federal Group USA enforces strict quality control gates from incoming raw material validation to pre-shipment CMM inspection.
We provide global buyers with FOB, CIF, or DDP (Delivered Duty Paid) shipping terms, handling all customs clearance, export packaging, and international freight logistics seamlessly.
Frequently Asked Questions
What minimum order quantities (MOQs) does TFG USA require for custom screw machining?
Our production facilities are optimized for medium-to-high volume production runs. For custom Swiss CNC turned parts, our standard production runs typically start at 1,000 to 5,000 units. For multi-spindle automatic machining, typical MOQs start at 25,000+ units to optimize setup and tooling costs.
What quality inspection documentation is provided with international shipments?
Every shipment is accompanied by complete inspection documentation, including Mill Test Reports (MTRs), Certificate of Conformance (CoC), CMM dimensional verification reports, and surface finish certifications. PPAP Level 1 through Level 3 documentation is available upon request for automotive and industrial OEMs.
How does TFG USA ensure price competitiveness against regional machining shops?
By leveraging high-speed multi-spindle equipment, robotic automation, and optimized raw material sourcing, we minimize cycle times and labor overhead. Furthermore, our DFM engineering review eliminates unnecessary machining steps before tooling begins, delivering superior unit cost savings.
Request Our Precision Machining Catalog
Download complete engineering specifications, material capability sheets, and equipment lists to discover how TFG USA can streamline your component supply chain.
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