Helical Split spring lock washers are available in four series: Regular, heavy, extra duty and hi-collar as given below. Helical spring lock washers made of materials other than carbon steel are available in the regular series.

AFT Fasteners provides a helpful resource for split lockwasher dimensions, applications, material and hardness.

Split Lock Washer Dimensions are shown in the following chart according to ASME B18.21.1-2009 standard. All dimensions are in inches. Split lock washers from #0 to 3 inches nominal size are given. Split lock washers are available in four series which are …

AFT Fasteners provides a helpful resource for metric split lockwasher dimensions, applications, material and hardness.

The following sizes of DIN 127 B Helical Spring Lock Washers are available for immediate shipping from stock: Diameters ranging from M3 to M72 in steel and stainless steel 301, A4 and 316Ti.

Split lock washers provide greater bolt tensioning for tighter assemblies and provide protection against loosening resulting from vibration. Lock washers can be used with a standard washer to provide uniform bearing surface.

Split Lock Washers are a left hand helix and allow the nut to be tightened in a right hand direction only. When compressed by tightening the nut, the washer bites into the substrate and exerts a spring force between the bolt and the substrate creating frictional resistance to rotation.

Regular Section ASME B18.21.2M-1994Heavy Section ASME B18.21.2M-1994

Applications/ Advantages Material Hardness Similar to a heavy split lock washer, but wi. h a greater outside diameter and thickness. The increased bearing area allows extra heavy splits to absorb greater tightening torques a. tension while under heavy loa.

Dimensions for S.A.E. hardened flat washers, USS hardened flat washers, S.A.E. low carbon flat washers, USS low carbon flat washers, spring steel and hardened steel split lock washers, and hardened beveled washers.