General description 6 Set T Screw and M8 Plastic Handle, Metal Quick Acting Hold Down Clamp Set is designed for T-Slot T-Track DIY woodworking projects. This versatile tool set includes T screws and plastic knob nuts, making it an essential addition to your woodworking toolkit. Technical specifications Thread Size: M8 Color: Black + Silver Material: Metal Package Contents: 6 x Set of tools (T Screws and Plastic Knob Nuts) Measurement allowed error: +/- 1-3cm