Disc Shaped Embossed Washer

Disc Shaped Embossed Washing is made of spring steel stamping, with a surface treated with zinc plating or blackening. Equipped with a circle of radial embossed teeth, installed under the nut and pressed, the teeth bite tightly against the contact surface. It is much more anti loosening and anti slip than a smooth washer, suitable for situations with tight space and anti slip requirements.

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Product Description

Ordinary spring washers are open-ended and rely on the elasticity at the opening to prevent loosening. The butterfly washer is subjected to force on the entire curved surface, with more uniform elasticity and a larger contact area. Moreover, after flattening the butterfly washer, the verticality of the bolt axis is good, and the nut will not be displaced. It is more suitable for use on flange surfaces and bearing covers that require uniform force.

What is surface embossing for: The gasket has fine embossed textures on both sides, not smooth. The function of embossing is to increase friction - when the nut presses against the washer, the embossed pattern bites the bottom of the nut and the surface of the workpiece, preventing the washer from rotating along with the nut.

Name	Disc Shaped Embossed Washer
Material	Carbon Steel
Standards	GB,DIN, BSW, JIS, UNC, UNF, Non-standard, Customized Drawing
Thread	Metric Coarse, Metric Fine, UNC, UNF, BSW, BSF.
Sizes	M4-M24Metc
Finish	Plain/Black/Zinc plated/Other
Price	0.03usd/pcs-0.50usd/pcs
MOQ	Stardard item(Usually little hundred-little thousand)/determined if non-standard

Product Feature

Embossed anti slip, non spinning: both sides have embossed textures, with high friction. When tightening the nut, the washer will not rotate along, and the assembly worker does not need to provide additional support. After installation, no matter how strong the vibration is, the nut will not slip laterally. Smooth washers are prone to deviation in vibration environments and will not be embossed.

Compensating for thermal expansion and contraction: When the temperature of the equipment changes, the amplitude of thermal expansion and contraction of bolts and workpieces is different, resulting in gaps. The elastic force of the butterfly washer is constantly pressing, and the gap is automatically adjusted when the temperature changes, keeping the connection always tight.