International industrial springs manufactures serrated safety washers ready to fit washers to sustain preload and avoid loosening. When a screw is tightened with this washer, the serrations crunch into the mating faces and prevents the screw from loosening up due to vibrations, etc. The disc shape construction of these serrated safety washers also support the necessary tension. The company supplies these serrated safety washers in various sizes to fit most bolts or screws. These serrated washers are disc springs with trapezoidal cross section on both sides for gripping and salient features like diameters matched to screw dimensions; outer diameter matched to head diameter of pan head; and useful with almost every screw and bolt including recessed heads except countersunk screw. The serrated safety washers offer advantages like used for high vibration resistance due to positive rib contact; excellent pretension; no splitting/cracking occurs during tightening through proper radius selection; the concentric force of washer eliminate chances of fastener bending; and extensive application and flexibility. The company has ready stock serrated safety washers of all sizes.
