Item Type: Wire Thread Insert Material: SUS304 Model: US Units 5/16in-18x2D Diameter: Approx. 7.938mm / 0.3in Pitch: Approx. 1.41mm / 0.06in Number of Turns Before Installation: 9.4 Length After Installation: Approx. 15.9mm / 0.6in Outside Diameter Before Installation: Approx. 9.6-10.2mm / 0.38-0.4in Drill Bit Diameter: Approx. 8.3 mm / 0.3in Thread Protective Socket Model Specification Description: For Example: M3 x 0.5 x 1.5D means that after the screw set is completed, the female thread is M3, the pitch is 0.5, and the length is 1.5D (length refers to 1.5 times the diameter, that is, 1.5 x 3=4.5mm) , the length here refers to the length after installation. How to Use: Step 1: Prepare the butt terminal, and peel off the protective layer of the part where the wire needs to be connected. Step 2: Unscrew the screw of the terminal block and prepare the stripped wire. Step 3: Insert one end of the stripped wire into the terminal, and then tighten the screw.