Steel Strut Channel Fittings Manufacturer
Heavy-duty flat plates, angular brackets, cantilever arms, and channel nuts manufactured for high-load MEP framing, utility tunnels, and data center piping. Available in proprietary high-strength aluminum alloy, hot-dip galvanized, and stainless steel.
Key Engineering Criteria for Strut Fitting Selection
Sourcing the right channel fittings requires balancing structural load limits, atmospheric corrosion resistance, fast field pre-assembly, and strict dimensional tolerances.
Load & Slip Resistance
Ensure fittings feature mechanical embossed grooves or 3D wedge geometries to eliminate slip under seismic vibration and continuous pipe weight.
Corrosion Category
Select high-strength aluminum alloy or HDG (≥65μm) for high-humidity tunnels, coastal sites, or wastewater facilities to prevent cross-sectional decay.
Hole Center Pitch
Standard 48mm center-to-center hole spacing and 14mm hole diameters ensure 100% universal compatibility with standard 1/2" or M12 channel nuts.
Non-Magnetic Safety
For high-voltage cable trays and data centers, utilize non-ferromagnetic aluminum fittings to eliminate eddy current thermal hotspots and power loss.
Complete Strut Channel Fitting Configurations
STANDARDS: BS 6946 / ASTM A1011 / ISO 9001
Flat Splice & Plate Fittings
2-hole, 3-hole, 4-hole, and 5-hole flat connectors, splice plates, cross plates, and tee fittings for inline strut channel joining.
- • Thickness: 6.0mm (1/4") or 5.0mm standard
- • Hole Size: 14mm for 1/2" or M12 bolts
- • Finishes: HDG, Zinc, Aluminum, SS316
90° Angular & Gusseted Brackets
Two-hole to four-hole L-brackets, corner gussets, shelf brackets, and reinforced corner connectors for rigid 90-degree framing.
- • Gusset Reinforcement: High moment rigidity
- • Configurations: 2, 3, 4, and 5-hole angle types
- • Yield Strength: Up to 604 MPa (Alloy)
Wing, U-Support & Z-Fittings
U-shape straddle fittings, 3-way & 4-way wing brackets, Z-connectors, and offset brackets for complex modular grid structures.
- • Channel Fit: Wraps standard 41.3mm width
- • Design: Eliminates twisting and eccentricity
- • Forming: Precision one-piece stamping
Cantilever Arms & Post Bases
Heavy-duty wall-mount cantilever brackets (150mm - 1000mm length), floor post bases, and single/double channel column shoes.
- • Arm Lengths: 150, 300, 450, 600, 750, 1000mm
- • Base Types: Single, Double, 2-Hole & 4-Hole
- • Welding: Robotic continuous robotic fillet
I-Beam Clamps & Flange Grippers
Drilling-free steel beam attachment clamps, window clamps, U-bolt beam clamps, and purlin clips for structural steelwork.
- • No-Drill Attachment: Preserves steel integrity
- • Flange Thickness: Fits up to 32mm flanges
- • Hardware: Cone-point hardened set screws
Channel Spring Nuts & T-Bolts
Long spring, short spring, and no-spring channel nuts with serrated inturned grooves, T-head bolts, and hex flange lock hardware.
- • Thread Sizes: M6, M8, M10, M12 / 1/4" to 1/2"
- • Grip Teeth: Case-hardened locking serrations
- • Locking: 83% higher slip resistance
Dimensional Standards, Materials & Coating Matrix
Standard dimensions conform strictly to BS 6946 and global 41mm strut channel profiles. Custom thicknesses, special hole pitches, and custom stamping are manufactured per technical drawings.
| Fitting Type | Standard Thickness | Hole Diameter & Pitch | Material Options | Finishing Standard | Slip Load (kN) |
|---|---|---|---|---|---|
| Flat Splice Plates | 6.0 mm (1/4") | Ø14mm / 48mm c-c | High-Strength Aluminum / Q235B | Anodized / HDG ≥65µm | 8.5 kN |
| 90° Corner Gussets | 6.0 mm or 8.0 mm | Ø14mm / 48mm c-c | Proprietary Alloy / Carbon Steel | HDG / Electro-Zinc / SS316 | 12.2 kN |
| Cantilever Brackets | Channel 2.5mm + Base 8mm | Ø14×28mm Slotted | 6000-Series Alloy / Q235 / Q355 | Anodized / HDG ASTM A123 | Up to 18.0 kN (Bending) |
| U-Shaped Saddle Connectors | 5.0 mm / 6.0 mm | Ø14mm Standard | Al-Alloy / Carbon Steel / SS304 | Zinc-Nickel / HDG / Mill | 9.8 kN |
| Channel Spring Nuts | 6mm - 12mm thick body | M6, M8, M10, M12 / 1/2" | Case Hardened Carbon / SS316 | Zinc Plated / Dacromet / Geomet | 14.5 kN (Slip Resistant) |
Proprietary Aluminum Alloy
1/3 the weight of carbon steel with up to 728 MPa tensile strength. Naturally non-corrosive and non-ferromagnetic.
Best for: Tunnels, Rail, Data CentersHot-Dip Galvanized (HDG)
Heavy zinc coating (≥65 to 85 microns) compliant with ISO 1461 and ASTM A123 for harsh outdoor and industrial exposure.
Best for: Outdoor Solar & Plant PipingStainless Steel (304 / 316)
Marine-grade austenitic steel providing ultimate chemical and acid resistance in wastewater, offshore, and cleanroom environments.
Best for: Chemical, Marine & PharmaPatented 3D Wedge Mechanical Locking
Traditional flat friction fittings can vibrate loose under dynamic building movements. Lonsonstrut components utilize 3D interlocking geometries and mechanical wedge teeth to create permanent friction joints.
+83% Enhanced Slip Resistance
Precision knurled contact faces bite directly into channel lip returns, dramatically lowering bolt torque decay.
2 Million Fatigue Cycles Tested
Certified dynamic vibration endurance for high-speed rail, subway tunnels, and heavy industrial machinery rooms.
Zero Eddy-Current Heating
Non-ferromagnetic aluminum prevents inductive heating around high-voltage 220kV cables and high-amp busways.
Structural Performance Comparison
Proven in Global Infrastructure & Mission-Critical Sites
From high-density hyperscale data centers to high-humidity 220kV power tunnels, Lonsonstrut channel fittings provide verified structural stability.
Hyperscale Data Centers
Overhead cable ladder support grids, busway trapeze hangers, and white-space hot/cold aisle containment framing.
Fast No-Weld Modification220kV Cable Utility Tunnels
Non-ferromagnetic high-voltage cable brackets preventing inductive heating loss and salt-spray corrosion in underground galleries.
Anti-Eddy InductanceCommercial Building MEP
Combined multi-tier pipe racks for chilled water, fire sprinkler piping, condenser lines, and mechanical HVAC ducting.
Prefab Modular FramingRail Transit & Subway Stations
Vibration-resistant overhead electrification support framing and concrete insert channel anchor brackets rated for 2M fatigue cycles.
Dynamic Fatigue RatedSolar & Industrial Plants
Rooftop ballast framing, outdoor transformer yard support structures, and industrial process piping bridges with HDG coating.
High UV & Weather ProofPetrochemical & Offshore
Acid-resistant stainless steel 316 and heavy hot-dip galvanized conduit and instrumentation tubing supports.
C5 Marine Corrosion ClassDirect-from-Factory Tooling, Stamping & Private Labeling
With our 133,000 m² Zhengzhou manufacturing base and in-house die design facilities, we provide wholesale distributors and global strut brands with custom stamping, progressive dies, specialized bending, and customized packaging.
Custom hole dies, embossed brand logos, and specialized offset bending.
Full CMM dimensional reports, coating thickness checks & mill test certs.
Export carton branding, retail palletizing, and customized part labeling.
Containerized wholesale shipments or mixed-sku support assemblies.
OEM Customization Workflow Standard Lead: 15-25 Days
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1
Drawing Review & Feasibility Analysis
Our engineering team reviews 2D/3D CAD files for stress points, material selection, and tooling efficiency within 24 hours.
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2
Rapid Prototype & Sample Testing
Stamping and surface finishing of physical evaluation samples with full mechanical load and torque test reports.
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3
Mass Stamping & Continuous Surface Treatment
Automated high-tonnage progressive presses, robotic welding, followed by in-line hot-dip galvanizing or anodizing.
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4
Export Palletizing & Ocean Freight Delivery
Protected steel-strapped wooden pallet packaging ready for container loading to US & European destination ports.
Frequently Asked Questions by Contractors & Distributors
Technical specifications, global compatibility, shipping times, and order requirements.
Are Lonsonstrut fittings compatible with standard 41mm strut channels from other brands?
Yes. All our standard flat plates, angle brackets, wing fittings, and beam clamps follow the global 41.3mm × 41.3mm and 41.3mm × 21mm cross-sectional standards with 48mm center-to-center hole spacing and 14mm hole diameters (for M10/M12 or 3/8" & 1/2" bolts).
What are the distinct advantages of your aluminum alloy fittings over carbon steel?
Our proprietary aluminum alloy offers one-third the weight of steel, tensile strength up to 728 MPa, superior natural corrosion resistance in damp environments, and non-ferromagnetic properties that eliminate inductive eddy current heat in high-voltage power cabling installations.
What surface coatings and corrosion protection standards do you offer?
We provide Hot-Dip Galvanizing (HDG) per ASTM A123 / ISO 1461 (≥65µm zinc thickness), Electro-Zinc Plating (ASTM B633), Anodized Aluminum, Dacromet/Geomet finishes, and 304/316 stainless steel for chemical applications.
What is your minimum order quantity (MoQ) and export delivery lead time?
For standard catalog items, typical MoQ is 500 to 1,000 pcs per SKU. For full container orders (FCL), standard factory lead time is 15-25 business days. Custom OEM stamped fittings with new mold creation require 20-30 days including sample sign-off.
Do you provide mill test certificates (MTR) and dynamic fatigue test data?
Yes. Every production batch is accompanied by 3.1 Mill Test Certificates (MTR) including chemical composition, tensile yield, zinc coating thickness testing, and 2-million-cycle dynamic fatigue test documentation where requested.
Can we order pre-assembled modular kits with channels, brackets, and nuts?
Yes. In addition to bulk fitting cartons, Lonsonstrut provides prefabricated modular pipe support assemblies, cut-to-length strut channels, and pre-packaged hardware kits designed to accelerate on-site contractor installation.
Request a Quote & Engineering Support
Submit your Bill of Materials (BOM), custom fabrication drawings, or project specifications. Our engineering and procurement team responds with verified pricing, load calculations, and manufacturing lead times within 24 hours.
B2B Sourcing & Custom Fabrication
Direct supply for MEP contractors, electrical infrastructure, utility tunnels, data centers, and strut channel distributors worldwide.
- 100,000 Tons Annual Integrated Piping Support Output
- High-Strength Aluminum & Steel full system compatibility
- OEM/ODM & Custom Tooling based on CAD/STEP drawings
- 100% Batch Inspection and mill test certificates provided