1. Dimensions The M20 foundation bolt has a diameter of 20 mm and typically comes in various lengths, depending on the required application. The length can range from 50 mm to over 200 mm, and it’s essential to choose a length that suits the thickness of the material being anchored.

Expandable anchors, often known as expansion anchors, are fasteners designed to secure objects to solid materials such as concrete, brick, or stone. The fundamental principle behind their design is the ability to expand under pressure, thereby creating a secure grip within the base material. When installed, the anchor's body expands outward, locking itself firmly in place, making it suitable for heavy loads and dynamic forces.

Features of Hex Head Bolts

When choosing hex socket head wood screws, it is essential to consider the size and length appropriate for your project. The screws should be long enough to penetrate through the wood without protruding excessively on the opposite side. Additionally, the thread type should match the density of the wood being used; for instance, finer threads are better suited for softwoods, while coarser threads are recommended for hardwoods.