LD-446 plastic PE wall plugs are precision-engineered ribbed expansion anchors designed for secure fastening in masonry, concrete and brickwork. Manufactured from high-density polyethylene (HDPE) or polypropylene (PP), these rawl plugs offer excellent flexibility, controlled expansion and long-term durability without brittle failure. The ribbed expansion body features anti-rotation fins that grip the wall material and prevent the plug from spinning during screw insertion, ensuring a firm and reliable fixing every time. Each plug size is color-coded to match a specific screw size, enabling installers to quickly identify the correct plug-screw combination on site without measurement errors. The plug expands radially as the screw is tightened, pressing the ribs firmly against the wall material and creating a tight mechanical interlock that resists pull-out and shear loads. HDPE and PP materials provide consistent expansion across a wide temperature range, maintain flexibility without cracking, and resist moisture, chemicals and aging for permanent installations. The standard color-coding system follows industry conventions: yellow for 5mm, red for 6mm, brown for 7mm, blue for 8mm, and so on, allowing instant recognition and reducing job-site errors. Screw compatibility ranges from M3 to M8, with drill bit sizes from 5mm to 14mm. The wall plugs are installed by drilling a hole matching the plug diameter, inserting the plug flush with the surface, then driving the screw to expand the plug against the wall material. Load capacity depends on wall material density, plug depth, and screw size: typical pull-out loads in concrete range from 50N for 5mm plugs to over 400N for 14mm plugs, with brick and lightweight block providing proportionally lower capacities. For best results, always match the plug size to the screw gauge, drill the correct diameter hole, and ensure full embedment of the plug body in the wall material.