U-Bolt Kits with Backplate

U-Bolt Kits with Backplate — Complete Clamping Assembly | M10–M24 | DIN 3570

U-bolt kits with backplate provide a complete clamping solution including the U-bolt, a perforated or solid backplate (saddle), nuts, and washers. The backplate distributes clamping force across a wider area, preventing pipe deformation and providing a more secure grip. Available in M10 to M24 sizes, these complete kits are ready for immediate installation without additional component sourcing.

Material & Specifications

Size Range	M10 to M24 (thread) / pipe OD: 25mm to 200mm
Standard	DIN 3570 kit, MSS SP-69 kit, custom configurations
Material	Carbon Steel (Grade 4.6/5.6), 304 SS, 316 SS, Galvanized Carbon Steel
Surface / Coating	Hot-Dip Galvanized (HDG), Electroplated Zinc, Dacromet
Kit Contents	1 U-bolt, 1 backplate/saddle, 2 hex nuts, 2 flat washers
Backplate Type	Flat plate, contoured saddle, rubber-lined (for pipe protection)

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

• Complete kit — no need to source individual components separately
• Backplate distributes clamping force, preventing pipe deformation
• Rubber-lined backplate option protects pipe coating from damage
• Galvanized finish for long-term outdoor corrosion resistance
• Contoured saddle backplate conforms to pipe OD for uniform grip
• Full kit traceability with material certification for all components

Applications

• Industrial piping system support and clamping
• Vehicle and trailer leaf spring mounting
• HVAC and plumbing pipe suspension
• Equipment and tank mounting to structural frames
• Marine and offshore piping support systems
• Agricultural and construction equipment assembly

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