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    Custom-engineered fasteners for OEM and special projects
    INDUSTRY FOCUS

    Fasteners for OEM & Special Projects

    Custom-engineered fasteners for OEM equipment and specialty applications. Drawing-based manufacture with tight tolerances and project-specific materials.

    OVERVIEW

    Engineering Collaboration for Specialty Fasteners

    Not every fastener requirement fits a standard specification. OEM equipment, legacy machinery, specialty applications, and prototype development often require custom-engineered components manufactured to exact drawings and tight tolerances.

    We work directly with engineering teams to produce low-volume, high-specification fasteners for special projects. From non-standard thread forms to specialty head configurations and project-specific materials, our manufacturing partners deliver components that meet your exact requirements.

    Whether you need obsolete part replacement, prototype fasteners, or custom solutions for unique applications, we provide the engineering support, material expertise, and quality documentation your project demands.

    EMG manufactures custom fasteners from customer drawings in over 30 alloy grades — from carbon steel to titanium and MP35N — with first article inspection, full PMI, and dimensional certification to project tolerances.

    Typical Applications

    • Drawing-based manufacture
    • Prototype and development parts
    • Obsolete fastener replacement
    • Specialty equipment assemblies
    • Low-volume production runs
    • Tight tolerance components
    • Non-standard configurations
    • Legacy equipment support
    INDUSTRY SECTORS

    Where Our Fasteners Are Installed

    A closer look at the key sectors within oem & special projects where our fasteners play a critical role in equipment integrity and safety.

    OEM Equipment Manufacturing

    Original equipment manufacturers require fasteners built to exact drawing specifications, often in non-standard sizes, thread forms, or materials. We collaborate with engineering teams to deliver components that integrate seamlessly into specialised equipment assemblies.

    Key Equipment
    • Valve and actuator assemblies
    • Pump and compressor packages
    • Subsea and downhole equipment
    • Pressure vessel and heat exchanger OEMs
    • Rotating equipment and turbine components

    Prototype & Development

    New product development and R&D programmes often require small batches of precision fasteners in exotic alloys or with tight tolerances. We support fast turnaround on first article inspection samples and iterative design changes without minimum order constraints.

    Key Equipment
    • First article and prototype runs
    • Test rig and fixture assemblies
    • Qualification and type-test components
    • Pre-production validation batches
    • Engineering change order replacements

    Legacy & Obsolete Part Replacement

    Ageing equipment and discontinued product lines create demand for reverse-engineered fasteners. We reproduce obsolete parts from samples, legacy drawings, or dimensional analysis — restoring equipment to service without costly redesigns.

    Key Equipment
    • Discontinued fastener reproduction
    • Legacy equipment overhaul kits
    • Dimensional reverse engineering
    • Material identification and matching
    • Retrofit and modification components
    PRODUCT RANGE

    Fastener Types We Supply

    Our range includes standard and specialty fasteners designed to meet the specific requirements of oem & special projects applications.

    Custom machined studs and bolts
    Non-standard thread forms
    Specialty head configurations
    Modified standard fasteners
    Prototype components
    Obsolete part reproductions
    Multi-start and fine pitch threads
    Reduced shank and waisted bolts
    View Stud BoltsView Nuts & Washers
    MATERIALS

    Common Materials & Grades

    We supply fasteners in a wide range of materials and grades to match the specific demands of your oem & special projects project.

    Carbon & Alloy Steel

    ASTM A193, A320, A540

    Stainless Steel

    304, 316, 17-4 PH, 15-5 PH

    Duplex & Super Duplex

    S31803, S32750, S32760

    Nickel Alloys

    Inconel, Monel, Hastelloy

    Titanium

    Grade 2, Grade 5 (Ti 6Al-4V)

    Specialty Materials

    A286, Waspaloy, MP35N

    COMPLIANCE

    Standards & Documentation

    All fasteners we supply are backed by full documentation and compliance with relevant industry standards. Our quality systems ensure complete traceability and audit readiness.

    Customer specificationsISO 9001 quality systemEN 10204 3.1 certificationFull PMI testingDimensional inspectionMaterial test reportsFirst article inspectionCustomer witness testing
    ASTM StandardsAPI Standards

    EN 10204 3.1 Certification

    Third-party verified material test reports with full chemical and mechanical documentation.

    Heat Number Traceability

    Complete material traceability from mill source through to final delivery.

    PMI Testing

    Positive Material Identification testing for critical alloy verification.

    ISO 9001 Quality System

    Quality management ensuring consistent product quality and compliance.

    RELATED RESOURCES

    Explore More

    Product Range

    Browse our complete fastener catalog

    View Products

    Material Grades

    Explore our material capabilities

    View Materials

    NORSOK Standards

    Offshore compliance requirements

    Explore NORSOK M-650 standards

    Request a OEM & Special Projects Quote

    Send a bolt list, drawings or a bill of materials

    Start a Quote
    FREQUENTLY ASKED QUESTIONS

    Technical FAQs

    What is your minimum order quantity for custom fasteners?

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    We have no fixed minimum order quantity. We regularly produce batches as small as 10 pieces for prototype development or obsolete part replacement. For production runs, we optimise batch sizes to balance unit cost with your project requirements. Engineering review and setup costs are typically the primary consideration for very small quantities.

    How long does it take to manufacture custom fasteners from drawings?

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    Typical lead times for custom machined fasteners are 4-8 weeks depending on material availability, complexity, and testing requirements. For urgent requirements, we can expedite manufacturing with priority scheduling and air freight. First article inspection samples can be produced in 2-3 weeks when required before full production release.

    Can you reverse-engineer obsolete or discontinued fasteners?

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    Yes. We routinely reproduce obsolete fasteners from samples, legacy drawings, or even failed components. Our process includes dimensional analysis, material identification (PMI/spectro analysis), thread form measurement, and manufacturing to match the original specification. Full documentation is provided for the replacement parts.

    What quality documentation do you provide for custom parts?

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    Custom fasteners are supplied with EN 10204 3.1 material test reports, PMI verification, dimensional inspection reports, and first article inspection reports (FAIR) for initial production. Additional testing including UT, MT, PT, hardness, and witness testing is available as specified by the customer or applicable standard.

    Need Compliant Fasteners for a Safety-Critical Project?

    Our team can assist with material selection, certification requirements, and supply for your oem & special projects application.

    Talk to Our TeamView All Industries