M12 M14 hexagon heavy Metal bolt and nut washer white black blue yellow hot dip zinc
| Attribute | Value |
|---|---|
| Usage | Fastening |
| Size | Various sizes available |
| Style | Carbon steel hex head with washer nut |
| Head Style | Hexagon head |
| Strength | High |
| Finish | Polished/Zinc/Anodizing |
| Manufacturer | JIA SHAN Hardware Company |
| Length | Customizable |
| Package | Small Packing + Carton Packing + Pallet |
| Standard | DIN |
| Package Quantity | 100 pieces |
| Shape | Bolt |
| Measurement System | INCH, Metric |
| Port | Shenzhen |
| Quality | Inspection before shipment |
| Color | Customizable |
| Material | Steel: 304/316/301/310/201 |
Hex bolts are widely used across various industries due to their simple design, high strength, and ease of installation. Below are key applications and advantages:
The markings on bolt heads are not decorative, but serve to identify certain properties of the bolt.
For example:
Strength grade
The most common are numerical designations, such as 8.8, 10.9, 12.9.
The first number ×100 = minimum tensile strength (MPa).
The second number ÷10 = yield ratio.
For example, ‘12.9’ denotes a tensile strength ≥1200 MPa and a yield strength ≥1080 MPa.
- Construction Industry: Used in structural steel connections for bridges, building frameworks, and scaffolding.
- Machinery Manufacturing: Essential for fastening mechanical parts in lathes, heavy-duty equipment, and assembly lines.
- Automotive and Transportation: Secures critical parts like chassis, engines, and transmission systems.
- Home Appliances and Electronics: Provides reliable connections for air conditioners, washing machines, and televisions.
- Energy and Petrochemical Industry: Crucial for wind turbines, nuclear power plants, and petrochemical plants.
- Marine and Offshore Engineering: Used in shipbuilding and offshore platforms with corrosion-resistant stainless steel variants.
- Furniture Manufacturing: Provides stability and durability for beds, tables, chairs, and cabinets.
Carbon steel is an iron-carbon alloy with carbon content ranging from 0.0218% to 2.11%. It generally contains small amounts of silicon, manganese, sulfur, and phosphorus.
Classification:
- By Use: Carbon structural steel, carbon tool steel, and free-cutting structural steel
- By Smelting Method: Flat furnace steel, converter steel
- By Deoxidation Method: Boiling steel (F), sedentary steel (Z), semi-sedentary steel (b), special sedentary steel (TZ)
- By Carbon Content: Low carbon steel (≤0.25%), medium carbon steel (0.25%-0.6%), high carbon steel (≥0.6%)
- By Quality: Ordinary carbon steel, high-quality carbon steel, premium steel
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