Specifications M6 extended screws, approx. 8.2 grams U-shaped clip approx.: 4.4 grams M6 extended screws + u-clips, approx. 12.6 grams 10pcs [5 each of m6 extended screws] approx.: 63 grams 20pcs [10 each of m6 extended screws] approx.: 126g 30pcs [15 pieces each of m6 extended screws] approximately: 189 grams 40pcs [20 pieces each of m6 extended screws] approx.: 252 grams 50pcs [25 pieces each of m6 extended screws] approx.: 315 grams M6 screw [color] approx.: 6.8 grams U-shaped clip [color] approx.: 4.4 grams M6 screw + u-shaped clip [color] approximately: 11.2 grams 10pcs [m6 screws + u-shaped clips, 5 each, color] approx.: 56 grams 20pcs [m6 screws + u-shaped clips, 10 each, color] approx.: 112 grams 30pcs [m6 screws + u-shaped clips, 15 each, color] approx.: 168g 40pcs [m6 screws + u-shaped clips, 20 each, color] approx.: 224 grams 50pcs [m6 screws + u-shaped clips, 25 each, color] approx.: 280g M6 screw [pointed head] approx.: 9.3 grams M6 screw + u-shaped clip [clamp head] approx.: 13.7 grams 10pcs [m6 screws + u-clips, 5 of each] approx. 68.5 grams 20pcs [m6 screws + u-clips, 10 of each] approx. 137g 30pcs [m6 screws + u-clips, 15 of each, with collets] approx. 205.5 grams 40pcs [m6 screws + u-clips, 20 of each] approx. 274g 50pcs [m6 screws + u-clips, 25 of each] approx. 343g M6 screw [flat head] approx.: 8.1 grams M6 screw + u-shaped clip [flat head] approx.: 12.5 grams 10pcs [m6 screws + u-clips, 5 of each, flat head] approx. 62.5g 20pcs [m6 screws + u-clips, 10 of each, flat head] approx. 125g 30pcs [m6 screws + u-clips, 15 of each, flat head] approx. 188 grams 40pcs [m6 screws + u-clips, 20 of each, flat head] approx. 250g 50pcs [m6 screws + u-shaped clips, 25 of each, flat head] approx. 313g 4.2x20mm screw: approx.: 3.6 grams U-shaped clip approx.: 2.6g 4.2x20mm screw + u-shaped clip: about 6.2 grams 10pcs [4.2x20 screws + 5 u-shaped clips each] approximately: 31 grams 20pcs [4.2x20 screws + 10 u-shaped clips each] approximately: 62 grams 30pcs [4.2x20 screws + 15 u-shaped clips each] approximately: 93 grams 40pcs [4.2x20 screws + 20 u-shaped clips each] approximately: 124 grams 50pcs [4.2x20 screws + 25 u-shaped clips each] approximately: 155 grams