1. Screws DIN 7500 Thread rolling M4, countesunk, stainless steel, lenght between 12 mm -20 mm 2. Self tapping screws for nylon plugs, min thread dia 4,5 max 6. Max head dia 10 mm, steel or stainless steel, any drive (TX, PH, PZ, HEX), min length 150 mm. 200 pcs./each