Sizes from 6mm to 12mm, lengths from 16mm to 60mm. Class 10.9 High Strength Zinc Plated - 940 Pieces. We stock a wide variety of Fastener Assortments in both inch & metric, numerous finishes and fastener types. All KL Jack Drawer Assortments are packaged in Large Scoop Latching Metal Boxes with a Contents Label and easy to read Drawer ID Label. Assortment Drawer Outside Dimensions in Inches: 18" wide x 12" deep x 3" high.