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A washer with a "wave" in the axial direction, which provides spring pressure when compressed. Wave washers, of comparable size, do not produce as much force as Belleville washers. In Germany, they are sometimes used as lock washers but they are less effective than other choices. [a] [8] Split washer or spring lock washer
Toothed lock washers: Withdrawn: DIN 6798: Serrated lock washers: Withdrawn: DIN 6799: Lock washers (retaining washers) for shafts: Active: DIN 6880: Bright Key Steel; Dimensions, Permissible Variations, Weights: Active: DIN 6885-1: Drive Type Fastenings without Taper Action – Part 1: Parallel Keys, Keyways, Deep Pattern: Active: DIN 6885-2
Safety wire is commonly 0.5, 0.6, 0.8 or 1 mm (0.020, 0.025, 0.032 or 0.041 in) in diameter, but 0.5-and-1 mm (0.021-and-0.051 in) diameters are also available. It is usually made of stainless steel, but is also available in monel and inconel alloys for high temperature applications and copper for break-away applications. [ 7 ]
The Triple Lock, officially the Smith & Wesson.44 Hand Ejector 1st Model New Century, is a double-action revolver. It was and is considered by many, including handgun enthusiast and expert Elmer Keith, to be the finest revolver ever made. [1] Its popular name refers to its extra (third) locking lug on the cylinder crane.
In applications where vibration or rotation may work a nut loose, various locking mechanisms may be employed: lock washers, jam nuts, eccentric double nuts, [1] specialist adhesive thread-locking fluid such as Loctite, safety pins or lockwire in conjunction with castellated nuts, nylon inserts , or slightly oval-shaped threads.
Thread Pitch = 1/N where N is the number of threads per inch or mm ... Spring washers create additional axial force whereas lock washers have parts that engage the ...