Stainless Steel A4 External Serrated Lock Washer Size 3.5 mm Thickness 0.5 mm DIN 6798 | AOBSCO

External Serrated Lock Washer made from high-quality Stainless Steel A4, manufactured by AOBSCO. This washer meets the DIN 6798 standard and features serrated teeth on the outer diameter that grip the joint material, providing constant pressure to prevent loosening even under continuous vibrations. It is highly durable and essential for reliable fastening in construction materials and building supplies across Saudi Arabia.

• Size: 3.5 mm
• Thickness: 0.5 mm
• Standard: DIN 6798
• Material: Stainless Steel A4 (316)
• Type: External Serrated Lock Washer