metal screws self drilling

Nuts are used alongside bolts to secure components together. The nut’s internal threads allow it to fit onto the bolt’s shaft, creating a tight connection when tightened. There are several types of nuts, including hex nuts, lock nuts, and wing nuts. Lock nuts are designed to resist loosening under vibration, making them well-suited for applications in dynamic environments. Wing nuts, with their unique design, can be easily tightened or loosened by hand, making them useful in situations where frequent adjustments are necessary.


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A bolt anchor, also known as a anchor bolt or anchor fastener, is a critical component in securing structures to foundations. It is designed to fix objects or structures to a concrete surface by anchoring them deep within the material. The design varies, with common types including expansion anchors, sleeve anchors, and anchor bolts with nuts and washers. They are made from materials like steel, stainless steel, or zinc-plated steel to withstand harsh conditions and heavy loads.

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