3 4 expansion bolt

One of the standout features of hex head drilling screws is their self-drilling point. This means that these screws can penetrate materials directly without the need for pre-drilling a hole. This quality significantly saves time and effort during installation, which can be especially crucial in large-scale projects. The self-drilling capability also reduces the risk of damaging the workpiece, as it minimizes the chances of splitting or cracking the material under stress.


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In conclusion, the incorporation of 12% SDS in screws manufacturing offers numerous benefits, including improved wetting, enhanced machinability, and reduced environmental impact. These advantages make it a valuable additive for manufacturers seeking to produce high-quality, efficient, and sustainable screws. As technology continues to advance and the demand for more sophisticated screw designs grows, the role of SDS in this industry is likely to become even more significant.

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