The Eye Bolt produced by Handan Jinmai Fastener Manufacturing Co., Ltd. is a high-strength annular fastener designed for hoisting, traction and fixing applications. Made of high-quality carbon steel/stainless steel, it is hot-dip galvanized or Dacromet-treated, and has excellent corrosion resistance. It is widely used in power fittings installation, communication cable installation, building steel structure connection and industrial equipment hoisting. The annular design provides 360° stress points to ensure even load distribution, making it the safest choice for heavy industry, energy infrastructure and communication projects.
1. High-strength and safe load-bearing
Through precision forging and heat treatment technology, the safety factor is more than 4:1, in line with ISO 3266 international standards, and the maximum static load of a single product can reach 50 tons.
2. Multiple anti-corrosion protection
The surface adopts hot-dip galvanizing (average coating ≥85μm) or Dacromet coating process, passes 2000 hours of salt spray test, and adapts to harsh environments such as marine climate and high humidity.
3. Engineering adaptability design
Provides two structures: regular eye bolt and shoulder eye bolt, supports vertical/oblique loads, and matches multiple thread specifications from M8 to M36.
4. Full process quality traceability
Each batch of products comes with a material report (EN 10204 3.1) and heat treatment hardness test data (HRC 22-34) to ensure traceability.
1. Precision material selection
Select high-quality low-carbon alloy steel (Grade 8.8/10.9) or 304/316 stainless steel from Shougang and Baosteel, and pass the composition test of the spectrometer.
2. Hot die forging
Use a 6300-ton hydraulic forging machine for one-time forming to eliminate internal pores and increase grain density.
3. Quenching and tempering heat treatment
Quenching (850℃) + tempering (450℃) process to make the tensile strength reach more than 1000MPa and the elongation ≥12%.
4. Surface treatment
The fully automatic galvanizing line achieves uniform coverage of the zinc layer, and the tolerance of key dimensions is controlled within ±0.15mm.
5. Non-destructive testing
100% magnetic particle inspection (MT) and random sampling tensile test (ASTM F606 standard) to eliminate the hidden dangers of cracks.
Material standard: carbon steel (GB/T 699), stainless steel (ASTM A276)
Specification range: nominal diameter M8-M36, length 50mm-500mm (support non-standard customization)
- Mechanical properties: tensile strength ≥800MPa (carbon steel)/≥500MPa (stainless steel), working temperature -40℃~+200℃
Surface treatment: hot-dip galvanizing (coating thickness 55-85μm), Dacromet (coating thickness 6-12μm)
Certification standards: ISO 3266, ASME B18.15, DIN 580
Applicable scenarios: power transmission tower installation, communication optical cable ADSS suspension, port machinery lifting
Conclusion：
As a professional manufacturer in the field of power fittings and communication fasteners in China, **Handan Jinmai Fastener Manufacturing Co., Ltd.** has been deeply involved in the industry for 18 years and has built the Eye Bolt series of products with military-grade quality control standards. We provide customers with customized solutions that meet American, European and national standards through fully automatic forging production lines, CNAS certified laboratories and ERP quality management systems. Whether it is a power transmission project in the hot and humid climate of Southeast Asia or an offshore wind power project in the extremely cold region of Northern Europe, Jinmai Eye Bolt has always protected global infrastructure safety with its "zero accident" reputation.
Contact Jinmai sales team immediately to get exclusive technical solutions and export quotations!
Email:[email protected] WhatsApp/wechat: +86 13831001495
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