Stainless Steel A4 External Serrated Lock Washer 20 mm Thickness 1.4 mm DIN 6798

External Serrated Lock Washer manufactured from premium Stainless Steel A4 by . This washer features external serrations that bite into joint surfaces, ensuring a secure clamp that resists loosening under vibration and pressure. Ideal for reliable fastening solutions in construction materials and building supplies throughout Saudi Arabia.

• Size: 20 mm
• Thickness: 1.4 mm
• Standard: DIN 6798
• Material: Stainless Steel A4
• External serrated teeth for enhanced grip