PROMAT Tensioning screw size=A M7 length 21 mm square 8 mm suitable for quick-change holder

body::-webkit-scrollbar { width: 7px; } body::-webkit-scrollbar-track { border-radius: 10px; background: #f0f0f0; } body::-webkit-scrollbar-thumb { border-radius: 50px; background: #dfdbdb }