07 06 - Reproduction, even in part prohibited. Printed in UK Modified: 21 August 2024 07 06 07 06 Lock Washers Lock Washers are locking devices with a spring effect which is achieved through their axial spring force. Spring Steel, Bright Zinc Plated. Nord-Lock Washers ¤ Featuring wedge surfaces on one side with a cam angle greater than the pitch angle of the bolt thread, with radial ribs on the opposite side. ¤ The washers are supplied in pairs with the wedge surfaces glued to one another. When the bolt and/or nut is tightened, the opposing wedge surfaces and the external radial ribs mechanically interlock with the surrounding material. ¤ Movement is only possible between the wedge surfaces. Any attempt from the bolt/nut to rotate loose, for example due to vibration, is blocked by the wedge effect creating increased pre-tension. ¤ The connection can be loosened manually once the increased pre-tension is overcome Advantages: ¤ Simple installation and removal using standard tools. ¤ Maximum safety against working loose from vibrations and dynamic loads. ¤ Can be used up to bolt grade 12.9. ¤ Can be used in same temperature range as the bolt. ¤ Reusable. Size DIN 6797 IZ Lock Washer DIN 6797 AZ Lock Washer M5 0428 5 M6 0428 6 0429 6 M8 0428 8 0429 8 M10 0428 10 0429 10 M12 0428 12 M16 0429 16 To fit Machine Screw Size Inside dia. Outside dia. Inside dia. Outside dia. M5 5.3 10.0 5.3 10.0 M6 6.4 11.0 6.4 11.0 M8 8.4 15.0 8.4 15.0 M10 10.5 18.0 10.5 18.0 M12 12.5 20.5 12.5 20.5 M16 16.5 26.0 16.5 26.0 Art. No. Suitable for Screw Internal Dia. (d) External Dia. (d1) Height Box Qty 0435 06 M6 6.5mm 10.8 1.8 200 0435 08 M8 8.7mm 13.5 2.5 100 0435 010 M10 10.7mm 16.6 2.5 50 0435 012 M12 13mm 19.5 2.5 50 0435 016 M16 17mm 25.4 3.4 25 0435 020 M20 21.4mm 30.7 3.4 25
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