Precision Cold-Forged Fasteners for Critical Applications

Comprehensive range of fuel injection nuts, hydraulic fittings, and custom components manufactured to exacting standards

Key Features

Quality characteristics common to all our precision cold-forged fasteners

Grain Flow Integrity
Cold forging ensures optimal grain flow

Thread Strength
Roll-form threading enhances durability

Precision Tolerances
Dimensional accuracy: ±0.05mm

Fatigue Resistance
High cycle performance

Corrosion Protection
Advanced surface treatments

PPAP Documentation
Complete quality documentation

Fuel Injection Nuts

Fuel Injection Nuts with Roll-Form Threads

Engineered for High-Pressure Fuel Systems

Our cold-forged fuel injection nuts are engineered for high-pressure fuel systems in automotive and locomotive applications. Roll-formed threads provide superior strength and sealing characteristics compared to cut threads.

Surface Finishes: Zinc plating with yellow or green passivation (trivalent), with custom finishes available.

Applications: Diesel fuel injection systems, common rail fuel systems, high-pressure fuel lines, and locomotive fuel systems.

  • Sizes: Up to 27 mm across flats (AF) and up to 30 mm outer diameter
  • Threads: Manufactured to customer-specified thread form and dimensions
  • Materials: AISI 1010 (low carbon), AISI 1018, 45C8 (medium carbon), 10B21 (boron steel), EN19 (alloy steel), and other alloy steels on request

Hydraulic Hose Nuts

Precision Components for High-Pressure Hydraulic Systems

Precision cold-forged hydraulic nuts designed for high-pressure hydraulic systems. Our manufacturing process ensures consistent quality and dimensional accuracy critical for leak-free hydraulic connections.

Surface Finishes: Zinc plating with yellow or green passivation (trivalent), with custom finishes available.

  • Sizes: Up to 27 mm across flats (AF) and up to 30 mm outer diameter
  • Threads: Manufactured to customer-specified thread form and dimensions
  • Materials: AISI 1010 (low carbon), AISI 1018, 45C8 (medium carbon), 10B21 (boron steel), EN19 (alloy steel), and other alloy steels on request
Hydraulic Hose Nuts
Sleeves & Ferrules

Cold-Forged Sleeves for Fuel Injection Systems

Precision Components for Pipe Assemblies

Precision sleeves manufactured for fuel injection pipe assemblies. These components require tight tolerances and excellent surface finish to ensure proper sealing and longevity.

Applications: Fuel injection pipe assemblies, hydraulic hose end fittings, brake pipe connections, and custom fluid transmission systems. Custom dimensions per customer drawings are available.

  • Sizes: Outside diameter 8mm to 30mm, length 10mm to 35mm, wall thickness 1mm to 5mm
  • Tolerances: OD: ±0.03mm, ID: ±0.05mm, Length: ±0.1mm, Concentricity: ≤0.05mm TIR
  • Materials: AISI 1010 (standard applications), 45C8 (higher strength), 10B21 (enhanced hardenability), and other alloy steels on request

Custom Cold-Forged Parts

Specialized components developed per customer drawings and specifications

Size Range & Capabilities

  • Across Flats: 14mm AF to 27mm AF
  • Maximum Diameter: 30mm
  • Maximum Length: 30mm
  • Minimum Wall Thickness: 1mm

Complexity

  • Multi-diameter features
  • Internal and external threads
  • Hexagonal, square, or custom shapes
  • Through-holes and blind holes
  • Knurling and special surface features

Lead Times

  • Design review: 3-5 days
  • Tool development: 4-6 weeks
  • Prototype samples: 2-3 weeks
  • PPAP approval: 2-4 weeks

Development Process

1 Design Review
2 Tool Design
3 Prototype
4 Validation
5 PPAP
6 Production

Material Specifications

High-quality materials selected for optimal performance in critical applications

Material Description Tensile Strength (MPa) Hardness (HRB) Applications
AISI 1010 Low carbon steel, excellent formability 365-450 55-70 Standard fasteners, low-stress applications
AISI 1018 Low carbon steel with improved strength and machinability 440-550 65-80 General-purpose fasteners, machined and formed components
45C8 Medium carbon steel, balanced properties 600-750 85-95 General purpose fasteners, moderate strength
10B21 Boron steel, enhanced hardenability 520-680 75-90 High-strength fasteners, cold heading quality
EN19 Alloy steel, high strength and toughness 850-1000 95-105 Heavy-duty applications, high-stress components

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