In theory split washers (aka lock washers or helical spring washers) are supposed to work by squishing flat between the nut and the mounting 

The only difference is that the Hilitchi spring washer is curved in one direction. When installed, there are few contacts points between the screw head or the nut and the washer. The wave is meant to provide some kind of spring pressure when it is compressed. You can use it as a lock washer but it doesn't mean it can be as effective.

When exposed to transverse vibrations underneath the bolt head, alternative locking methods such as plain washers, helical spring washers, check lock nuts, 

NASA has known for 30 years now that split lock washers don't do anything. "The lockwasher serves as a spring while the bolt is being tightened. However, the washer is normally flat by the time the bolt is fully torqued. Helical spring ‐ lock washers compensate for developed looseness between component parts of an assembly, distribute the

Jul 29,  · Also known as spring lock washers, split washers are characterized by a break point. Unlike flat washers, they don’t consist of a solid and flat piece of metal. Rather, split washers are broken or “split.”. This unique design means that one side of a split washer is higher than the other side. Split washers are made by “splitting” a

The tension generated by the deflection of a helical spring split lock washer meets the needs of most commercial applications. Split lock washers also reduce scratching on the assembly surface which may be a problem with a toothed lock washer. Our lock washers meet all ASME standards in addition to RoHS and DFARS compliance when required.

Helical Spring Washers Extra Duty (Extra Heavy) Helical With a further increase in O.D., thickness and bearing area, the Extra-Duty (Extra Heavy) helical spring spilt lock washer absorbs exceptionally high torques and retains tension under heavy loads. WCL also refers to these as Extra Heavy (EH).

Also known as high-collar lock washers, these have smaller outside diameters than standard split lock washers to fit neatly under socket head cap screws. As a screw is tightened, they flatten to add tension to the joint and prevent loosening from small amounts of vibration.. Zinc-plated steel washers are corrosion resistant in wet environments.. 18-8 stainless steel washers have good chemical

Aug 30,  · However, the washer is normally flat by the time the bolt is fully torqued. At this time it is equivalent to a solid flat washer, and its locking ability is nonexistent.In summary, a

May 06,  · A helical lock washer (also called a "split washer") looks like a ring with uneven ends. We Better Fastener(www.betterfastener.com)is a manufacturer and trading combo, producing all types

When it comes to providing top cleaning performance, STIHL delivers pressure washers combining power and high-quality components. Whether you need to clean your deck or your professional equipment, STIHL power washers are designed for convenience and durability to make your job easier and impeccable.