| Parameter Item | Specification Details |
|---|---|
| Brand | J&W Auto Part |
| Product Name | M12x1.5 Conical Seat Wheel Lug Bolts |
| Thread Size | M12 x 1.5 |
| Seat Type | 60 Degree Conical (Taper) Seat |
| Material | High-Tensile Carbon Steel / Alloy Steel (10.9 / 12.9 Grade) |
| Finish Options | Chrome, Zinc, Black Oxide, or Dacromet |
| Hex Size | 17mm / 19mm (Standard) |
| Manufacturing Process | Cold Heading & Precision Machining |
At J&W Auto Part, we deeply understand the critical role of wheel bolts in vehicle safety.
1. High-Strength Cold Forging Process: Utilizing 12 large cold forging machines, we ensure that the metal fiber flow lines of the M12x1.5 Conical Seat Wheel Lug Bolts are not severed, significantly improving fatigue resistance.
2. Precision Thread Machining: Secondary precision machining using over 20 CNC machining centers ensures that thread tolerances are controlled within an extremely small range, preventing seizing or loosening during installation.
3. Automated Surface Treatment: Our in-house automated electroplating production lines can withstand salt spray tests for over 72 hours, effectively resisting corrosion from rainwater and road de-icing agents.
Large Production Scale
Our factory, located in Ningbo, Zhejiang, covers over 10 acres and employs more than 100 experienced technicians. This scale ensures extremely high delivery stability when handling large-volume orders.
Strict Quality Management System
5S On-Site Management: Through standardized on-site management, we reduce waste and human error in the production process, improving overall operational efficiency.
End-to-End Quality Inspection: From raw material warehousing to automated electroplating, every process has quality inspection points.
Extensive Product Lineup
In addition to our core product, the M12x1.5 Conical Seat Wheel Lug Bolts, our product line also extensively covers:
Wheel Spacer Adapters
Wheel Lug Nuts
Customized Fasteners
Q1: Which car models are the M12x1.5 Conical Seat Wheel Lug Bolts suitable for?
A1: This specification is widely used in BMW (early models), Mercedes-Benz, Volkswagen, and some Korean and Japanese vehicles. It is recommended to check the original wheel hub seat type (cone or ball) and thread pitch before purchasing.
Q2: How do you ensure the bolt hardness meets the standard?
A2: All bolts manufactured by J&W Auto Part undergo heat treatment, achieving a hardness of 10.9 or 12.9. We regularly conduct tensile and torque tests on samples.
Q3: Do you support OEM customization?
A3: Yes, we have independent R&D and mold design capabilities, and can customize M12x1.5 Conical Seat Wheel Lug Bolts in different lengths, colors and packaging according to your drawings or samples.
Application Scenarios
The M12x1.5 Conical Seat Wheel Lug Bolts manufactured by J&W Auto Part are widely used in passenger vehicles, aftermarket wheel upgrades, and professional automotive repair environments. Thanks to their precise conical seat design and high tensile strength, they provide stable clamping force for various wheel hub structures.
Typical applications include:
Passenger cars and SUVs
Aftermarket alloy wheel installations
Automotive repair workshops
Wheel hub replacement projects
Racing and performance vehicle maintenance
These M12x1.5 Conical Seat Wheel Lug Bolts are particularly suitable for vehicles that require 60° conical seat wheel bolts to ensure accurate wheel centering and safe fastening.
Product Structure Overview
The M12x1.5 Conical Seat Wheel Lug Bolts produced by J&W Auto Part are composed of several precision-engineered sections to ensure durability and accurate installation.
Key structural parts include:
Hex Head – Designed for standard 17mm or 19mm sockets, allowing easy installation.
Precision Thread Section – M12x1.5 thread pitch ensures stable torque performance.
60° Conical Seat – Provides accurate wheel alignment and even load distribution.
High Strength Bolt Body – Made from heat-treated alloy steel for enhanced durability.
Surface Coating Layer – Chrome, zinc, or Dacromet coating improves corrosion resistance.
Each section of the bolt is engineered to maintain structural integrity under high torque conditions.
Address
No.539 Guangyi Road, Guanhaiwei Town, Cixi, Ningbo, Zhejiang, China
