M12 M16 Carbon Steel High Hardness Bolts - A325 A307 GR2 GR5 ASTM 193 B7 Standards - 1.5mm-2.0mm Pitch
Price:
0.26USD-0.35USD
MOQ:
1pcs
Delivery Time:
15days
Product Description
Product Overview
High-strength carbon steel bolts available in M12 and M16 sizes, manufactured to international standards including A325, A307 GR2/GR5, ASTM 193, and B7 specifications. These industrial-grade fasteners feature exceptional hardness and durability for demanding applications.
Technical Specifications
| Attribute | Specifications |
|---|---|
| Product Name | Metal Bolt |
| Standards | DIN, ASME, ANSI, ISO |
| Materials | Steel, Stainless Steel, Brass, Copper, Titanium Alloy, Plastic |
| Place of Origin | China |
| Surface Finishes | Polish, Passivation, Black Oxide, Galvanization |
| Certifications | ISO9001:2008, ROHS |
Product Features
Hub nuts are specialized automotive fasteners designed for securing outer wheel hubs. While lacking national standardization, they typically follow hexagonal nut specifications ranging from M12 to M42 sizes.
Design Characteristics
- Thicker construction compared to standard hexagonal nuts
- Fine thread pitch (1.5mm-2.0mm)
- Equal-sided hexagonal shape
- Tapered end design
Surface Treatment Options
- Plated white finish
- Army green coating
- Yellow color treatment
- Corrosion-resistant Dacromet coating
Industry Applications
| Industry | Applications |
|---|---|
| Automotive | High-strength applications including engines, heavy-duty machinery, and bridge construction |
| Mechanical | Connecting mechanical parts, circuit boards, engines, transmissions, and building structures |
| Energy | Brackets and fixtures for power generation equipment and transmission lines |
| Architectural | Building structures, shipbuilding, and petrochemical equipment connections |
Material Properties
| Material | Properties |
|---|---|
| Aluminum | Excellent thermal/electrical conductivity but soft; requires careful processing |
| Titanium | Requires EDM machining with deionized water to control heat |
| Steel | Very strong; often processed with wire cutting machines for complex features |
| Brass | High tensile strength but requires slow cutting speeds |
Performance Advantages
Hub bolts serve as high-strength fasteners connecting vehicle wheels to hub unit bearings. Grade 10.9 is standard for mini cars while 12.9 grade is used for medium/large vehicles.
Structural Design
Typical structure includes knurled spline gears, threaded gears, and a hat head. Most T-shaped head wheel hub bolts are grade 8.8+, handling large torque connections between wheel hubs and axles. Double-ended wheel hub bolts (grade 4.8+) connect outer wheel hub housings to tires with lighter torque requirements.
Manufacturing Process
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Get in Touch
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Company
Hunan Jia Shan Hardware Tech Co., Ltd.
Location
1st Floor,Building 8 Phase II Factory Building,No.8 Lutian Road,Lugu Base,Lugu Street,Xiangjiang New Area,Hunan Province.Postal Code:410205
Contact Person
Tan