SAE & Metric Nylon Insert Lock Nut Assortment 405 Pcs, 304 SS

COMPLETE SAE & METRIC ASSORTMENT This 405-piece nylon insert lock nut kit includes 16 commonly used sizes, with 221 metric and 184 SAE lock nuts. Covers metric sizes from M3 to M12 and SAE sizes from #4-40 to 1/2-13 for everyday repair, maintenance, and assembly needs. | NYLON INSERT HELPS RESIST LOOSENING Each lock nut features a nylon insert that grips the bolt threads to help resist loosening caused by vibration and movement. A reliable choice for applications where standard hex nuts may gradually work loose. | 304 STAINLESS STEEL FOR DURABILITY Made of 304 stainless steel for corrosion resistance and dependable everyday use. Suitable for automotive repair, machinery, equipment maintenance, furniture, shelving, workshop projects, and DIY applications. | 7 METRIC SIZES WITH PRACTICAL QUANTITIES Includes M3x0.5 (85 pcs), M4x0.7 (50 pcs), M5x0.8 (36 pcs), M6x1.0 (30 pcs), M8x1.25 (12 pcs), M10x1.5 (6 pcs), and M12x1.75 (2 pcs), giving you more pieces of the smaller sizes commonly needed for repairs and projects. | 9 SAE SIZES FOR MORE APPLICATIONS Includes #4-40 (40 pcs), #6-32 (40 pcs), #8-32 (30 pcs), #10-24 (20 pcs), #10-32 (20 pcs), 1/4-20 (16 pcs), 5/16-18 (10 pcs), 3/8-16 (6 pcs), and 1/2-13 (2 pcs), covering a wide range of inch-size fastening needs.