(5000 pcs) M4, DIN 6797 Type A, Metric, Tooth Lock Washers, External Tooth, Steel

DIMENSIONAL ATTRIBUTES | Diameter (Nominal): M4 | Diameter (Dimension): 4mm | Inside Diameter (Nominal): 4.3mm | Inside Diameter (Minimum): 4.3mm | Inside Diameter (Maximum): 4.48mm | Outside Diameter (Nominal): 8mm | Outside Diameter (Minimum): 7.64mm | Outside Diameter (Maximum): 8mm | Thickness (Nominal): 0.5mm | PRODUCT ATTRIBUTES | Category: Tooth Lock Washers | System of Measurement: Metric | Brand: Aspen Fasteners | Form and Design: External Tooth | Material: Steel | Material Grade: Spring Steel | Coating: Uncoated | Origin: Origin Undefined | Standards and Specifications: DIN 6797 Type A | NB: Product images are copyrighted artistic representations which may not reflect the product's exact appearance, proportions and/or relative dimensions.

• Tooth washers are made with small sharp and twisted teeth that, when compressed, prevent loosening.
• Effective as a lock washer when used with a soft substrate, such as aluminium or plastic.
• In electrical applications, the teeth create a grounding surface to improve the connection.