With one M10 threaded hole and one M8 threaded hole. The thread on the screw allows it to slide smoothly without getting stuck. Heavy duty C-clip: The C-clip is made of high-quality stainless steel with a surface coating, which is corrosion resistant, rust resistant, and sturdy. The I-beam design provides strength, ensuring that the object is firmly held without deformation. Wide application range: The C-type fixture has strong functionality and a broad range of applications, suitable for fixing parts during assembly, fastening, bonding, and welding. Widely used in furniture manufacturing, metal processing, home, and automotive applications, this reliable metal C-clip ensures items remain securely positioned. Convenient to use: The clamp features adjustable set screws that can be customized as needed. It can be easily attached to any tabletop or wooden plank, offering strong clamping force and ease of use. Size: 120mm / 100mm / 85mm / 65mm Material: Stainless steel Color: Silver Package Contents: 2 x C clamps Note: Light reflection and different displays may cause the color of the item in the picture to appear slightly different from the real thing. Measurement may vary by +/- 1-3cm.