Contact Spring Washer Size 6 mm Thickness 1.3 mm NF25511 Standard | AOBSCO

Contact Spring Washer serrated type, manufactured by AOBSCO, is made from high-quality steel with a ribbed conical surface. This washer provides 360-degree locking force under screw heads or nuts, effectively preventing loosening due to vibration and pressure. It is widely used in construction materials and building supplies across Saudi Arabia for reliable assembly security.

• Size: M6 (6 mm)
• Thickness: 1.3 mm
• Outer diameter (d2): 14 mm
• Height (h) from highest to lowest point: 2.1 mm
• Standard: NF25511
• Material: High-quality steel with serrated conical design
• Primary use: Prevents loosening of assembly components under vibration and pressure