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Serrated Washers are Disc Spring with Trapezoidal Cross Section on both sides for gripping. As the bolt is tightened the serrations crunch into the mating faces and prevents the screw from loosening up due to vibration. lIS serrated safety washers are ready to fit washers to sustain preload and avoid loosening. Also, the disc shape holds the necessary tension. They are available in various sizes to fit bolts or screws. The outer diameter of washer is matched to the head diameter of screw head. The diameters for Serrated Washers are matched to screw dimensions. This allows using screw and bolt including recessed heads, except countersunk screw.
 The advantages of Serrated Safety Washers are :
1. Used for high vibration resistance due to positive rib contact
2. The concentric force of the washer eliminates the chances of bending the fastener

3. Extensive application and flexibility, minimizes stocks

4. Excellent pretensioning
5. Through proper radius selection, no splitting/cracking occurs during tightening 

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You're reading:Serrated safety washers
xmshuangyuan Published:2011-3-24 18:33:43
Categories:Knowledge of spring
Keyword:disc spring  





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China manufacturer of gas spring,disc spring,die spring,lockable gas spring and compression spring