Product Description
DIN 933 class 4.8 zinc plated hex bolts are manufactured in strict compliance with German industrial standards. Made from high-quality low-carbon steel, these bolts feature precision-formed full threads and an electrogalvanized anti-corrosion coating, combining fundamental fastening performance with corrosion resistance. They are lightweight fasteners suitable for general-purpose applications. The bolts offer excellent overall toughness and ductility, with smooth thread engagement and easy installation. They are compatible with DIN-standard nuts and washers, ensuring broad versatility.
Product Overview
- Product Name: DIN 933 Hex Head Full Thread Bolts
- Standard: DIN 933
- Strength Grade: Grade 4.8
- Material: Low-carbon steel
- Surface Treatment: Electrogalvanized (Blue-white zinc / Color-coated zinc)
- Thread Type: Full Thread
- Applicable Industries: General machinery, construction, furniture, hardware, and electrical installation
Product Features
- Basic Mechanical Stability: Grade 4.8 standard strength, with a tensile strength of ≥400 MPa and a yield strength of ≥320 MPa. Meets the requirements for low-load static connections, resists brittle fracture, and offers high tolerance for assembly errors.
- Galvanized Corrosion Protection: The galvanized surface forms a dense protective layer that effectively blocks moisture and resists mild acid and alkali corrosion. It prevents rust and aging in dry indoor environments and mildly humid outdoor settings, extending the product's service life.
- Standard Precision Fit: Fully compliant with the DIN 933 full-thread design, ensuring controllable metric thread precision. The hex head distributes force evenly, preventing slippage during wrench installation and removal, and offering high interchangeability.
- Cost-Effective and Practical: Controllable base material costs and outstanding cost-performance in mass production make it a cost-effective choice for large-scale engineering projects and routine assembly procurement, thereby reducing overall system costs.
Applications
- Fixing steel structures, guardrails, and brackets
- Assembling machinery and electrical cabinets
- Assembling furniture and connecting metal frames
- Repairing agricultural machinery and light vehicles
- General fastening applications requiring moderate strength and rust protection
Specifications and Customization
We maintain ample inventory, with standard stock covering common sizes from M6 to M24 in a full range of lengths. You can customize galvanizing processes such as blue-white zinc and colored zinc. We can provide factory test reports and customized bulk packaging upon request to meet your routine procurement and stocking needs.
Table of Common Sizes for DIN 933 Grade 4.8 Galvanized Bolts
Key Dimensions (mm)
|
Thread Specifications |
Pitch P |
Flank Width S |
Head Thickness K |
Thread Form |
|
M6 |
1.0 |
10 |
4.0 |
Fully threaded |
|
M8 |
1.25 |
13 |
5.3 |
Fully threaded |
|
M10 |
1.5 |
17 |
6.6 |
Fully threaded |
|
M12 |
1.75 |
19 |
8.0 |
Fully threaded |
|
M14 |
2.0 |
22 |
9.0 |
Fully threaded |
|
M16 |
2.0 |
24 |
10.0 |
Fully threaded |
|
M20 |
2.5 |
30 |
12.5 |
Fully threaded |
|
M24 |
3.0 |
36 |
15.0 |
Fully threaded |
Standard Length Series (mm)
12, 16, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, 70, 80, 90, 100, 120, 140, 150
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