2.5 inch self drilling screws

The designation 5 8% refers to specific standards and specifications that characterize this type of wedge bolt. Wedge bolts, known for their unique tapered design, are essential in providing secure connections under varying loads and conditions. The wedge shape allows for easy insertion and tight fitting, making it an ideal component for applications that require a significant amount of clamping force without the need for continual adjustments.


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The ceramic coating on these screws is a thin layer of zirconia or silicon nitride, which is known for its extreme hardness and excellent thermal stability. This coating not only enhances the screw's resistance to corrosion but also provides a non-stick surface that reduces friction during installation. As a result, these screws can be driven into materials more easily and quickly, significantly increasing productivity on construction sites.

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