Overview
Flange bolts are specialized fasteners designed to provide secure and reliable connections in applications requiring high strength and stability. These bolts feature an integrated flange beneath the head, which acts as a built-in washer to distribute load evenly and reduce the risk of damage to the connected surfaces. Manufactured from high-grade materials such as carbon steel, stainless steel, and alloy steel, flange bolts undergo precise machining and heat treatment processes to achieve optimal hardness and corrosion resistance. Their design ensures enhanced clamping force and vibration resistance, making flange bolts suitable for use in heavy machinery, automotive assemblies, construction equipment, and structural steel frameworks where durability and safety are paramount.
The performance of flange bolts is characterized by their ability to maintain joint integrity under dynamic loads and harsh environmental conditions. The flange design eliminates the need for separate washers, simplifying assembly and reducing installation time while ensuring consistent torque application. Flange bolts are available in various sizes and thread types to accommodate diverse industrial requirements, and their robust construction supports high tensile strength and fatigue resistance. These fasteners are widely utilized in sectors such as manufacturing, infrastructure, and transportation, where dependable fastening solutions are critical. The advantages of flange bolts include improved load distribution, enhanced resistance to loosening, and streamlined installation, making them an essential component in demanding industrial fastening applications.
| Product Type | Flange Bolts |
| Head Style | Hexagonal with Integrated Flange |
| Manufacturing Process | Cold Forged or Hot Forged |
| Thread Type | Unified National Coarse (UNC) or Unified National Fine (UNF) |
| Common Materials | Carbon Steel, Stainless Steel, Alloy Steel |
| Available Sizes | M6 to M24 (Metric), 1/4″ to 1″ (Imperial) |
| Strength Features | High Tensile Strength, Vibration Resistance due to Flange |
| Typical Applications | Automotive, Machinery Assembly, Structural Connections |
| Surface Finishes | Zinc Plated, Black Oxide, Hot-Dip Galvanized |
| Standards | ISO 4162, DIN 6921, ASTM A325 |
| Customization | Custom Sizes, Materials, Threads & Surface Finishes Available |
Manufactured to withstand high stress and pressure in critical flange connections for enhanced safety and reliability.
Available in materials and coatings that resist corrosion in harsh industrial environments, extending service life.
Ensures accurate fit and secure fastening to prevent leaks and maintain joint integrity.
Offers versatility to accommodate various flange sizes and industrial requirements.
Suitable for high-temperature applications, maintaining mechanical properties under thermal stress.
Designed to resist loosening under vibration, ensuring stable and long-lasting flange joints.
| Product Type | Flange Bolts |
| Thread Type | Metric Coarse and Fine |
| Diameter Range | M8 to M48 |
| Length Range | 20 mm to 300 mm |
| Available Materials | Stainless Steel, Carbon Steel, Alloy Steel |
| Manufacturing Standards | ASTM A193, ASME B18.2.1, DIN 6921, ISO 4162 |
| Surface Finish | Plain, Zinc Plated, Hot-Dip Galvanized |
| Diameter (mm) | Length (mm) | Thread Pitch (mm) |
|---|---|---|
| M8 | 20–100 | 1.25 |
| M16 | 30–200 | 2.0 |
| M24 | 50–250 | 3.0 |
| M36 | 100–300 | 4.0 |
