LUTER 20pcs M4 x 10mm Carbon Steel Threaded Knurled Thumbscrew, Knurled Handle Bolts Grip Mounting Thumb Screw Knobs Black Round mping Screws(Black)

Package Content: You will receive 20pcs M4 x 10 mm threaded knurled thumbscrews, which can be installed in any place you need to meet your daily use and replacement. High Quality: The screws are made of high quality carbon steel material, which has excellent electric insulation, good hardness and wear resistance. They can be used repeatedly for most different purposes. Easy to Use: These handle knob thumbscrews are screw-on design, which is simple and easy for you to install. They have smooth and clean surface, thus making them more convenient to use. Excellent Workmanship: The surface of the round head grip finger screw is very smooth, and the threads are also neat and even, with no burrs to the touch. Get a tighter installation. Warm Tips: We recommend that you need washers as spacers when installing part of the monitor to avoid damaging the computer monitor. The length of the screw part is 10mm/0.4inch. It may bottom out on some computer monitors. In some cases, you just need a layer of cushioning to avoid direct contact.