External Star Lock Washers

Star Washer

Introduction

DIN- 6798

An internal external star washer is a type of washer that has teeth or notches along both the inner and outer edges. It can be used on either the inside or outside of a component or assembly, depending on the specific application. This type of washer is designed to help prevent loosening due to vibration or torque by providing a secure grip on the fastener and the material being fastened. Internal external star washers are available in a variety of materials, including steel, stainless steel, brass, and plastic, and can be used with a variety of fastener types and sizes. They are often used in applications where a secure hold is necessary and space is limited.

Star Washer

External Star Lock Washers

The advantages of Serrated Safety Washers are :
  • Used for high vibration resistance due to positive rib contact.
  • Excellent Pretensioning.
  • Through proper radius selection, no splitting/cracking occurs during tightening.
  • The concentric force of the washer eliminates the chances of bending the fastener.
  • Extensive application and flexibility, minimizes stocks.

Dimension Table for Star washers

Internal Star Washer AS PER DIN DIN 6798 B
PART CODE SIZE INNER DIAMETER (d1) OUTER DIAMETER (d2) THICKNESS (s) NO.OF TEETH
MIN MAX MIN MAX NOM
ISW02000 M 2 2.20 2.34 4.20 4.50 0.30 9.00
ISW02500 M 2.5 2.70 2.84 5.20 5.50 0.40 9.00
ISW03000 M 3 3.20 3.38 5.70 6.00 0.40 9.00
ISW03500 M 3.5 3.70 3.88 6.64 7.00 0.50 10.00
ISW04000 M 4 4.30 4.48 7.64 8.00 0.50 11.00
ISW05000 M 5 5.30 5.48 9.64 10.00 0.60 11.00
ISW06000 M 6 6.40 6.62 10.57 11.00 0.70 12.00
ISW08000 M 8 8.40 8.62 14.57 15.00 0.80 14.00
ISW10000 M 10 10.50 10.77 17.57 18.00 0.90 16.00
ISW12000 M 12 13.00 13.27 19.98 20.00 1.00 16.00
ISW14000 M 14 15.00 15.27 23.48 24.00 1.00 18.00
ISW16000 M 16 17.00 17.27 25.48 26.00 1.20 18.00
ISW18000 M 18 19.00 19.33 29.48 30.00 1.40 18.00
ISW20000 M 20 21.00 21.33 32.38 33.00 1.40 20.00
ISW22000 M 22 23.00 23.33 35.38 36.00 1.50 20.00
ISW24000 M 24 25.00 25.33 37.38 38.00 1.50 20.00
ISW26000 M 26 28.00 28.33 44.38 45.00 1.60 22.00
ISW30000 M 30 31.00 31.39 47.38 48.00 1.60 22.00
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