| Item | Specification Details |
|---|---|
| Product Name | Hex Flange Bolt / Flange Face Hexagon Bolt |
| Material | SUS304 Stainless Steel (A2-70 Grade) |
| Surface Finish | Natural Bright Polished Stainless Steel, Anti-rust & Acid-resistant |
| Standard Sizes | M5, M6, M8, M10, M12; Custom thread length available |
| Component Structure | Integral hex head + serrated anti-slip flange washer + full rolling thread shank, marked A2-70 on head surface |
| Applicable Base | Automation equipment, aluminum profiles, automotive parts, solar brackets, mechanical assembly, outdoor machinery |
| Core Features | One-piece flange eliminates separate washers; serrated teeth under flange for anti-loosening & anti-slip; A2-70 high tensile strength; uniform precise thread; excellent corrosion & salt spray resistance |
| Application Scenarios | Automobile chassis assembly, photovoltaic support installation, industrial equipment frame connection, outdoor mechanical fixing, electronic cabinet assembly |
| Custom Service | OEM & ODM, custom thread length, customized head marking, black passivation surface treatment |
Hex Flange Bolt
Hex Flange Bolt is an integrated fastener combining hex head and serrated flange washer, widely used in vibration-prone mechanical assembly scenarios.
This bolt is made of SUS304 stainless steel with A2-70 mechanical grade, with "A2-70" stamped clearly on the top of hex head to identify material and tensile strength. The flange and bolt head are integrally forged, removing the need for independent flat washers during installation. The serrated anti-slip teeth on the bottom of the flange can bite tightly into the workpiece surface to effectively prevent loosening caused by long-term vibration.
The full precision rolling thread matches perfectly with standard hex nuts, ensuring stable clamping force. Compared with carbon steel flange bolts, SUS304 A2-70 material provides outstanding rust-proof and anti-salt-spray performance, suitable for outdoor, coastal, humid and slightly corrosive working environments.
It greatly simplifies assembly procedures and improves construction efficiency, widely adopted in automotive, new energy photovoltaic, automation equipment and outdoor engineering fields. All finished flange bolts pass tensile strength, hardness and thread precision inspection before delivery, meeting international mechanical fastening standards. Custom thread lengths and special surface treatments can be produced for bulk export orders.
