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anti-theft nut for spring & ball

Product Item : 001
Category： anti-theft nut
material: carbon steel
Diameters:M10-M30
grade: 4.8/5.8/6.8
surface treatment:hot dipping
Product description：hex anti theft nut is different from normal lock nut,it's mainly used for transmission line tower not only against tower loosening but also against anti-theft for vandalism,it's very difficulty to rem
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PRODUCT INTRODUCTION

Product Name	hex anti-theft nut with spring and ball
Size	M10--M30
Type	security nut
Material	carbon steel
Surface treatment	hot dipping/zinc plating
Grade	4.8/5.8/6.8
Feature	difficulty to remove,against losening and reducing operating cost.
Application	transmission tower,high fence and other outdoor public utilities etc.