CA2710 | Master Kit 1650PC MACHINE SCREWS & NUTS ASSORTMENT Countersunk Head Phillips Zinc Plated 20 Sizes: M3 to M6 Dia. 1650 Pieces Replacement Packs Available Part # Size Pack Qty CMS50 3 x 20mm 100 CMS51 3 x 50mm 100 CMS52 4 x 16mm 100 CMS53 4 x 25mm 100 CMS54 4 x 35mm 100 CMS55 4 x 50mm 50 CMS56 5 x 20mm 100 CMS57 5 x 25mm 100 CMS58 5 x 35mm 50 CMS59 5 x 50mm 50 CMS60 5 x 60mm 50 CMS61 6 x 16mm 100 CMS62 6 x 20mm 100 CMS63 6 x 25mm 50 CMS64 6 x 40mm 50 CMS65 6 x 50mm 50 CMS66 6 x 80mm 50 C300-1 M3 x 0.5mm Hex Nuts 100 C300-2 M4 x 0.7mm Hex Nuts 100 C300-3 M5 x 0.8mm Hex Nuts 100 C300-4 M6 x 1.00mm Hex Nuts 100