Combi-selftapping screws with captive washer DIN 6901 (alternative norms GB/T 9074.19, NFE 25-523, ISO 10510, JIS B 1129) 4.8x16 Steel 8.8 (or 6.8) Black zinc plated Please send offer for 20.000 pcs. (10.000 pcs. deliveries) and 50.000 pcs. (25.000 pcs. deliveries) Picture and drawing in attachment