Hex Bolt Black Oxide Grade 8.8 M10-1.5 (DIN931)

Specification Details: M10-1.5 Grade 8.8 Black Oxide Hex Bolt

1. Thread Specification

• Diameter: M10 (10 mm core diameter)
  
• Pitch: 1.5 mm (Metric Coarse Thread)
  
• Thread Direction: Right-Hand Thread (Standard)

2. Dimension Specification (Reference: DIN 931)

• Head Height (k): 6.4 mm
  
• Wrench Size / Across Flats (s): 17 mm (Used for both bolt head and hex nut)
  
• Bolt Type: Hexagon Head Partial Thread (DIN 931 Standard)
  Thread Length (b): Based on the DIN 931 standard:
    - For bolt length up to 125 mm: Thread Length = 26 mm
    - For bolt length 126 - 200 mm: Thread Length = 32 mm
    - For bolt length over 200 mm: Thread Length = 45 mm

3. Mechanical Specification

• Property Class: Grade 8.8 (Medium Carbon Steel, Quenched and Tempered)
  
• Tensile Strength: 800 N/mm² (800 MPa)
  Yield Strength: 640 N/mm² (640 MPa)
  
• Surface Finish: Black Oxide Finish with a light anti-rust oil coating.

4. Suitable Applications

• Heavy Machinery and Automotive: Ideal for large machinery frameworks, automotive suspension parts, trucks, and high-vibration equipment.
  
• Industrial Structures: Used for fastening structural steel, warehouse frames, crane assemblies, and heavy-duty racking systems.
  
• Heavy Component and Mold Assembly: Suitable for securing machine bases, plastic injection molds, or applications requiring higher tightening torque.