SPECIALTY METAL FASTENERS
Specialty Metal Fasteners for Critical Applications
MillsForge supplies stud bolts, bolts, nuts, washers, threaded rods, and custom fasteners in stainless steels, duplex and super duplex stainless steels, nickel alloys, alloy steels, and other specialty materials — according to applicable standards, drawings, and project requirements.
Stud Bolts · Bolts · Nuts · Washers · Threaded Rods · Custom Fasteners
FASTENER PRODUCTS
Fastener Types We Supply
From standard bolting assemblies to drawing-based components, MillsForge supplies specialty metal fasteners in a wide range of materials, dimensions, thread forms, and supply conditions.
Stud Bolts
Fully threaded and double-end stud bolts supplied according to applicable material, dimensional, and project specifications.
Hex Bolts
Hex bolts supplied in standard and custom dimensions for industrial equipment, piping, and pressure applications.
Nuts
Hex and heavy hex nuts matched to bolting material, grade, thread, and mechanical requirements.
Washers
Flat and specialty washers supplied according to applicable material and dimensional requirements.
Threaded Rods
Fully threaded rods supplied in customer-specified materials, diameters, lengths, and thread forms.
Custom Fasteners
Drawing-based fasteners manufactured according to specified dimensions, materials, threads, and configurations.
FASTENER MATERIALS
High-Performance Materials for Demanding Service
Fasteners can be supplied in corrosion-resistant, high-strength, high-temperature, and pressure-service materials according to application and specification requirements.
Nickel Alloys
Inconel 600 · 625 · 718 · 725
Incoloy 800 · 800H/HT · 825
Hastelloy C22 · C276
Monel 400 · K-500
Duplex & Super Duplex Stainless Steels
UNS S31803 · S32205 · S32750 · S32760
Stainless Steels
304/304L · 316/316L · 321 · 347 · 904L
Alloy & Carbon Steels
ASTM A105 · A182 Grades · A350 Grades · A694 Grades
Titanium Alloys
Grade 2 · Grade 5 · Grade 7 · Grade 12
Other grades and customer-specified materials can be sourced according to project requirements.
THREADS & DIMENSIONS
Fasteners to Standard & Custom Requirements
Thread Forms
UNC · UNF · UN · Metric · Customer-Specified Threads
Dimensions
Diameter, length, thread length, nut dimensions, and washer dimensions supplied according to applicable standards or drawings.
Thread Classes
Thread tolerances and classes can be supplied according to applicable ASME, ISO, DIN, or customer requirements.
Custom Requirements
Special lengths, non-standard dimensions, machined features, and drawing-based fasteners can be coordinated according to project requirements.
STANDARDS & SPECIFICATIONS
Fasteners to International Standards
Bolting Materials
ASTM A193 / A193M
Alloy-steel and stainless steel bolting for high-temperature, high-pressure, and other special-purpose applications.
ASTM A320 / A320M
Alloy-steel and stainless steel bolting for low-temperature service.
Nuts
ASTM A194 / A194M
Carbon steel, alloy steel, and stainless steel nuts for high-pressure or high-temperature service.
Stainless Steel Fasteners
ASTM F593
Stainless steel bolts, hex cap screws, and studs.
ASTM F594
Stainless steel nuts.
Dimensional Standards
ASME B18 Series · DIN · ISO · EN · Customer Specifications
Additional ASME, ASTM, MSS, EN, DIN, ISO, and customer-specific specifications can be supplied according to project requirements.
QUALITY & COMPLIANCE
Inspection, Testing & Material Traceability
Material Traceability
Heat Number · Material Identification · Product Marking
Material identification and heat-number traceability can be maintained throughout the supply process according to order requirements.
Dimensional & Thread Inspection
Diameter · Length · Thread · Nut Dimensions
Product dimensions and thread requirements can be verified according to applicable standards, drawings, and purchase specifications.
Mechanical & Corrosion Testing
Tensile · Proof Load · Impact · Hardness · Corrosion Testing
Mechanical, hardness, impact, and corrosion testing can be coordinated according to material specifications and project requirements.
Certification & TPI
EN 10204 3.1 / 3.2 · Inspection Reports · Third-Party Inspection
Material certificates, inspection reports, and third-party inspection can be provided or coordinated according to order requirements.
SUPER DUPLEX FASTENERS
S32750 & S32760 Fasteners for Corrosive Service
MillsForge supplies UNS S32750 and UNS S32760 super duplex stainless steel fasteners for applications requiring a combination of high mechanical strength and resistance to aggressive chloride-containing environments.
Materials: UNS S32750 · UNS S32760
Products: Stud Bolts · Bolts · Nuts · Washers
Threads: UNC · UNF · Metric · Custom
Inspection: PMI · Dimensional · Mechanical · Corrosion Testing
Material certification, heat-number traceability, inspection reports, and project-specific testing can be coordinated according to applicable specifications and order requirements.
APPLICATIONS
Fasteners for Demanding Industrial Applications
Oil & Gas · Chemical & Petrochemical · Power Generation · Marine & Offshore · Pressure Equipment · Industrial Equipment
Fastener selection should consider material compatibility, operating temperature, corrosion environment, mechanical requirements, applicable standards, and project specifications.
CUSTOM FASTENERS
Drawing-Based & Made-to-Order Fasteners
In addition to standard fasteners, MillsForge can coordinate drawing-based bolts, studs, nuts, and machined fastening components according to customer-specified materials, dimensions, threads, tolerances, and inspection requirements.
Custom Dimensions · Special Threads · Specialty Alloys · Drawing-Based Components
FASTENER REQUIREMENTS
Need Fasteners for Your Project?
Send us the fastener type, material grade, diameter, length, thread, quantity, applicable standard, coating or surface requirements, and inspection requirements. We will review your specification and coordinate a suitable supply solution.
What to include in your RFQ:
Type · Material · Diameter · Length · Thread · Quantity · Standard · Inspection