Product Description

1. Standard
Manufactured according to DIN 931:1987, Grade A/B precision. The bolt features a partially threaded shank (half-thread design) with an unthreaded section at the front of the shaft, distinguishing it from the fully threaded DIN 933 bolt. Thread length follows the fixed proportions specified by the standard and uses a coarse thread with standard pitch.

2. Common Specifications

• Thread sizes: M1.6–M45
• Regular stock sizes: M3, M4, M5, M6, M8, M10, M12, M16, M20
• Suitable for assembly with various standard clearance holes

3. Material Options
304 Stainless Steel (A2-70)

• General corrosion resistance
• Suitable for indoor and mildly humid environments

316 Stainless Steel (A4-70)

• Excellent corrosion resistance
• Suitable for outdoor and humid environments

4. Product Features

• Hex head design provides stable wrench engagement and reliable torque transmission.
• The unthreaded shank section enables accurate positioning and improved shear resistance.
• Ideal for applications requiring shaft alignment and the ability to withstand lateral shear loads.

5. Applications
Widely used in:

• Equipment frames
• Construction machinery
• Electromechanical assemblies
• Mold fixing
• Steel structures
• General fastening of vehicle components