Product Description
Our Air Spring Mounting Bolt Kit provides a complete, high-strength fastening system specifically engineered for semi-trailer air spring applications. This precision-matched kit includes all necessary components to ensure proper alignment and secure attachment of air springs to axle assemblies and frame brackets. Manufactured from Grade 10.9 alloy steel with advanced anti-corrosion coatings, each bolt undergoes ultrasonic testing to guarantee internal integrity while the custom-designed flange nuts feature integrated washers to prevent loosening from vibration.
The kit's components are pre-measured and packaged together to eliminate guesswork during installation, reducing service time by up to 40%. Special thread lubricant is included to ensure accurate torque values are achieved during assembly. Our proprietary bolt head design allows for both standard wrench and pneumatic tool installation without compromising fastener integrity.
Product Classification
By Application Type:
Standard Ride Height: For normal suspension configurations
Low-Profile: Clearence-optimized for lowered trailers
High-Capacity: Heavy haul and overweight applications
01
By Material Specification:
Fasteners:
Bolts: 10.9/12.9 alloy steel per ISO 898-1
Nuts: Grade 10 flange style per DIN 6923
Corrosion Protection:
Dacromet® coated (standard)
Xylan®-coated (chemical resistant)
Stainless steel A4 (marine grade)
02
By Compatibility:
Firestone (W01-358, etc.)
Goodyear (1R12-403, etc.)
Continental (01.955.5401, etc.)
Hendrickson (PN 12345, etc.)
03
Kit Contents:
(1) Shoulder bolts with integrated washers
(2) Flange nuts with nylon inserts
(3) Hardened flat washers
(4) Locking tab plates
(5) Tube of anti-seize compound
04
Product Characteristics
Vibration Resistance
Serrated flange nuts maintain clamp load under 5-500Hz vibration
Locking tab plates provide secondary retention
Corrosion Protection
500+ hour salt spray resistance (ASTM B117)
Self-healing coating repairs minor installation scratches
Precision Engineering
Shoulder bolts maintain perfect air spring alignment (±0.2mm)
Hardened washers prevent embedment in aluminum brackets
Installation Features
Torque stripe indicators for visual inspection
Color-coded components for foolproof assembly
Laser-marked part numbers for easy reordering
Key Advantages
Safety Assurance:Prevents catastrophic air spring detachment.Eliminates uneven loading on suspension components
Extended Service Life:3X longer lifespan than standard hardware.Protected threads resist rust-jacking
Operational Efficiency:Complete kit reduces multiple parts ordering.Pre-lubricated for accurate torque application
Cost Savings:Prevents $3,000+ in collateral damage from failures.Reduces warranty claims from improper fastening
Smart Compatibility:Fits 98% of North American air spring models.Includes adapter sleeves for legacy systems
Application Guidelines
Installation Torque Specifications
M14 bolts: 210-230 Nm (155-170 ft-lbs)
M16 bolts: 320-350 Nm (235-260 ft-lbs)
M18 bolts: 450-500 Nm (330-370 ft-lbs)
Maintenance Interval
Visual inspection every 50,000 miles
Re-torque check at 10,000 mile service
Performance Validation
1,000,000 cycle fatigue testing at 150% load
-40°F to +250°F temperature cycling tests
90-day road salt exposure simulation
The Complete Professional Solution
Each kit ships with
Installation torque chart
Bilingual instructions (English/Spanish)
QR code linking to installation video
Batch traceability certificate
(Ask about our Fleet Discount Program for orders of 50+ kits)
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