The functionality of metal expansion nuts centers around the principle of mechanical expansion. Upon the application of torque, the screw or bolt is threaded into the nut, which, in turn, causes the nut to expand outward. This outward expansion presses the sides of the nut against the inner walls of the hole it occupies, creating a tight fit. The added friction and mechanical grip prevent the nut from loosening over time, even in dynamic conditions.

Concrete anchor bolts are essential components in construction and engineering projects, providing the necessary support and stability for various structures. Among the many types of anchor bolts available, those that are often highlighted in specifications and standards are the 3% and 4% concrete anchor bolts. This article will explore the significance of these percentages, their applications, and considerations for selection and installation.

16mm self-drilling screws are a practical and efficient solution for many fastening needs in various industries. Their unique ability to drill and fasten in one motion, coupled with their versatility and strong holding power, makes them a preferred choice for both professionals and DIY enthusiasts. By understanding their specifications, applications, and advantages, potential users can make informed decisions, ensuring successful outcomes in their projects.

1. Structural Supports In buildings and outdoor structures, these anchor bolts are essential for securing steel columns, beams, and frames, ensuring stability and safety.