- M5 40 & 45 Series T-Slot Drop In Nuts are a practical fastening solution designed for use with aluminium extrusion systems. These nuts can be inserted directly into the T-Slot from the face of the extrusion, making them convenient for modifications and adjustments without disassembling the frame. Zinc-plated for improved corrosion resistance, these nuts offer a balance of affordability and ease of use for a range of applications in modular framing and medium-duty assemblies. Pros and Cons Drop In Nuts are a medium-strength solution for applications without end access PROS CONS Cost-Effective: Drop In Nuts are one of the most affordable options for aluminium extrusion systems. Medium Strength: Drop In Nuts offer a balanced strength suitable for most medium-duty applications. No Plane Limitation: Suitable for both vertical and horizontal planes, offering more flexibility in design. No Advanced Planning Needed: Can be inserted from the face of the extrusion, allowing for flexibility in adding or adjusting nuts as needed. Corrosion resistant: Zinc plating provides basic protection against rust. Low Reliability: These nuts have lower reliability compared to other options, requiring careful installation to ensure secure engagement. Application Drop In Nuts are specifically designed to complement our aluminium extrusion systems, providing easy to use and medium-strength fastening for a wide range of structures and assemblies. Ideal for both professional engineers and DIY enthusiasts, these nuts offer a practical solution for constructing adjustable and reliable structures. Their ease of use and compatibility make them a practical choice for any project requiring efficient and secure assembly.