Smalley's Metric Crest-to Crest series are available in dimensions from 6 to 60 mm.Crest-to-Crest springs enable original equipment manufacturers to reduce the size of their assembly by up to 50% while maintaining the same amount of force and deflection as a regular coiled spring. Crest-to-Crest wave springs minimize assembly cost and total assembly size due to the reduced spring cavity required. Available in carbon and stainless steel from stock.