Nord-Lock bolt securing solutions consist of a pair of washers with cams facing each other and serrations gripping the mating surfaces.

They use cam-geometry to effectively prevent the bolt from vibrating loose. A hot melt adhesive is used to assemble the washers in pairs.

The ingredients of the adhesive meet the compositional requirements of the American Food & Drug Administration regulations 21 CFR 175.105 “Adhesives”

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