Our DIN933 Hex Bolts are precision-engineered fasteners designed for high-strength industrial applications. Manufactured with a fully threaded shaft, these bolts ensure secure fastening across a wide range of depths, making them indispensable for automotive, construction, and mechanical engineering projects where structural integrity is paramount.
With over 15 years of specialized expertise in the fastener industry, we provide a comprehensive range of sizes from M5 to M64 and lengths up to 600mm. By utilizing premium raw materials and rigorous quality control processes, we deliver durable, high-performance bolting solutions that meet international standards including DIN, ISO, ANSI/ASME, and BS.
Detailed Parameters
| Standard | DIN 931, DIN 933, ISO, ANSI/ASME, BS, GB | Size Range | M5 - M64 |
|---|---|---|---|
| Length Range | 10mm - 600mm | Grade Level | 4.8, 8.8, 10.9, 12.9 |
| Raw Material | Q235, Q195, 1035, 1045, 20MnTiB, 35Crmo | Surface Treatment | Plain, Black, Zinc Plated, HDG, Dacromet |
| Certification | ISO9001, SGS | Packaging | 5kg, 10kg, 25kg bags + pallet (Customizable) |
| Loading Port | Tianjin Port, Qingdao Port, Others | Application | Auto, Mechanical, Construction, Railway, Appliances |
Key Advantages
Premium Durability
High-grade materials like 35Crmo and 20MnTiB ensure superior tensile strength and long-term reliability.
Efficient Delivery
Optimized manufacturing workflows allow for rapid turnaround and timely shipping based on order volume.
Precision Engineering
Strict adherence to DIN and ISO standards ensures perfect fit and seamless integration into your assembly.
Corrosion Resistance
Advanced coatings including HDG and Dacromet protect against oxidation in harsh environments.
Strict Quality Control
100% inspection process from incoming raw materials to final pre-shipment checks.
OEM Customization
Full support for non-standard designs based on your specific technical drawings or samples.
Product Gallery
Management Platforms
Raw Material Sourcing
Strict incoming quality control for wire drawing and carbon steel selection.
Forging Process
High-precision cold forging equipment for dimensional accuracy.
Surface Treatment
Automated plating and coating lines for uniform surface protection.
Testing protocols
Rigorous hardness, torque, and salt spray endurance testing.
Packing & Logistics
Secure carbon bag and pallet packing to prevent transit damage.
Final Quality Audit
Comprehensive pre-shipment quality control (PSQC) for 100% compliance.
Investment Return Comparison
| Comparison Metric | Standard Fasteners | Our Premium Hex Bolts |
|---|---|---|
| Lifespan | Average | Extended (High Fatigue Resistance) |
| Maintenance Cost | Frequent replacements | Low (Superior Corrosion Protection) |
| Fit Accuracy | Variable | High Precision (Strict DIN/ISO) |
| Installation Speed | Standard | Faster (Consistent Threading) |
| Risk of Failure | Moderate | Minimal (Certified Grade Testing) |
Frequently Asked Questions
DIN 933 bolts are fully threaded from the head to the end of the shank, whereas DIN 931 bolts have a partially threaded shank.
Yes, we provide professional OEM services. If you provide technical drawings or samples, we can manufacture non-standard fasteners to your specifications.
We employ a four-stage QC process: Incoming Quality Control, Process Quality Control, Final Quality Control, and Pre-shipment Quality Control using professional hardness and torque testers.
For outdoor environments, we recommend Hot Dip Galvanized (HDG) or Dacromet coatings, as they provide the highest level of protection against salt spray and oxidation.
Delivery time depends on the total order quantity and specific requirements. We strive to ship as quickly as possible while maintaining 100% quality assurance.
We can provide free samples for standard fasteners. However, the customer is responsible for paying the express courier charges.
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