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H.J TECH INDUSTRY LIMITED

JIAXING CHANNOV CO.,LTD

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Jiaxing Channov Precision Hardware Co., Ltd.
DISC SPRING WASHERS > Conical Washer With Serration NFE25-511
Product name: Conical Washer With Serration NFE25-511
Item No.:

Features

Using the same concept of the Disc Spring, the Serrated Safety Washer has the special feature of radial serrations on both surfaces. When tightened to near capacity these serrations bite into the mating surfaces , thus preventing the loosening of the screw due to vibration and other similar circumstances. Serrated Safety Washers offer a reduction in the outside dia thus corresponding with most screw head sizes, particulary hexagonal socket type screws.


Description

For Screw d1 d2 e Hi max Hi min # of knurls
M4 4.1 10 0.9 1.4 1.15 32
M5 5.1 12 1.1 1.8 1.45 36
M6 6.1 14 1.3 2.1 1.72 45
M8 8.2 18 1.4 2.35 1.9 45
M10 10.2 22 1.6 2.75 2.25 45
M12 12.4 27 1.8 3.1 2.6 45
M14 14.4 30 2.4 3.7 3.2 45
M16 16.4 32 2.8 4.1 3.6 60
M20 20.5 40 3.2 4.3 4.9 60


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Address: No.599 Dongda Rd,QiXing Industrial Zone,Nanhu Dist,JiaXing City,ZheJiang PR,CHINA
Tel: +86-573-84297069  Fax: +86-573-84297068  Email: info@hjfasteners.com
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