Threaded Rods DIN 975

Threaded Rods DIN 975 — Full Thread Stud Rods | M6–M64 | Carbon & Stainless Steel

Threaded rods manufactured to DIN 975 are fully threaded cylindrical rods supplied in standard 1-meter lengths (or custom lengths up to 3 meters). These versatile fastening components serve as anchor bolts, tie rods, hangers, and connecting elements in construction, plumbing, electrical, and industrial applications. Available in M6 to M64 sizes with carbon steel, stainless steel, and galvanized finishes.

Material & Specifications

Size Range	M6 to M64 / 1/4″ to 2-1/2″
Standard	DIN 975, ISO 4759, ANSI B18.31.1, GB/T 15389
Material	Carbon Steel (4.6, 4.8, 8.8), 304 SS (A2), 316 SS (A4), B7 Alloy Steel
Surface / Coating	Hot-Dip Galvanized (HDG), Electroplated Zinc Blue/White, Color Zinc, Dacromet
Tensile Strength	400-830 MPa (varies by material grade)
Length	Standard 1000mm (1m), 2000mm (2m), 3000mm (3m), or custom cut to length

Surface Treatment & Zinc Coating Quality

At BoltNutsPlus, we understand that surface treatment is critical to fastener longevity and performance. Our products undergo rigorous coating processes to ensure maximum corrosion resistance and durability. We offer five premium coating options, each tested to international standards:

• Hot-Dip Galvanizing (HDG) — Thick zinc layer (50-120μm) providing superior long-term corrosion protection for outdoor, marine, and industrial environments. Compliant with ISO 1461 / ASTM A153 standards. Salt spray resistance: 500-1,000+ hours. Ideal for structural steel assemblies exposed to harsh weather.
• Electroplated Zinc Blue-White (Zn Blue/White) — Bright, clean silver-blue appearance with 5-15μm zinc layer. Cr3+ passivation technology, fully RoHS compliant. Ideal for indoor machinery, electronics, and general-purpose applications requiring aesthetic appeal and moderate corrosion resistance.
• Color Zinc / Yellow Zinc (Iridescent Passivation) — Multi-colored iridescent passivation film offering enhanced corrosion resistance (100-200 hours salt spray) with a distinctive golden finish. Widely preferred in automotive, agricultural equipment, and construction machinery sectors for its balanced protection and visual appeal.
• Dacromet Coating — Advanced water-based zinc-chromium coating technology with NO hydrogen embrittlement risk. Provides 1,000+ hours salt spray resistance, making it the preferred choice for high-strength fasteners in extreme environments. Environmentally friendly (no heavy metal discharge), RoHS/ELV compliant, ideal for automotive and wind energy applications.
• Multi-Element Alloy Co-Permeation — Zinc-aluminum-rare earth alloy layer offering 2-3x the corrosion resistance of traditional galvanizing. Features self-healing properties at scratch points, ensuring long-term protection even in damaged areas. Ideal for critical infrastructure, power transmission towers, coastal projects, and marine installations.

Key Features

• Full-length threading allows nut placement at any position along the rod
• Standard 1-meter length with custom cutting available for specific requirements
• Thread-rolled for superior surface finish and fatigue resistance
• Available in B7 alloy steel for high-temperature and high-pressure applications
• Galvanized option provides excellent outdoor corrosion resistance
• Chamfered ends for easy nut starting and installation

Applications

• HVAC ductwork suspension and support systems
• Plumbing and piping system anchoring and bracing
• Electrical conduit and cable tray support
• Construction formwork tie rods and anchoring
• Industrial equipment mounting and leveling
• Custom assembly and maintenance applications

Why Choose BoltNutsPlus?

• ISO 9001:2015 Certified Manufacturing — consistent quality you can trust on every batch
• 15+ Years of Export Experience — serving 40+ countries across 6 continents
• Full Traceability — material certificates (EN 10204 3.1) and comprehensive test reports included
• Custom Packaging & OEM/ODM — your brand identity, your specifications, our precision manufacturing
• Third-Party SGS / Bureau Veritas Inspection Available upon request
• 24-Hour Quote Response — same-day reply for urgent requirements; standard 24-hour turnaround