420PCS M3 Nuts and Bolts Assortment Kit Hex Socket Head Cap Machine M3 Screws Bolts and Nuts Assortment Kit 6mm-20mm

Size:M3 Color:420Pcs M3 Hex Socket Upgraded Zinc Plated Material:12.9 Alloy Steel Brand: Fastener Type:Cap Bolt Extended Hex Product Feature: 1.M3 metric screw assortment kit including 210 x M3 Bolts are in 6 lengths. 210 x M3 Nuts; 1 x hex key 1 x transparent screws and nuts organizer. 2.M3 metric bolt assortment kit has 6/8/12/16/18/20MM total 420pcs. 3.Hex socket head cap machine screws made of Upgraded zinc electroplated version extended rust prevention time more elaborate production process no need to add anti-rust oil cleaner and tidier. 4.Screws assortment durable nuts and bolts. Extraordinary Technology & Professional & Durability. 5.Each screw is packed separately in a bag all are stored in one storage bin box easy and convenient for storing and carrying in case of missing. 5.Screws assortment kit can be widely used in all kinds of precision machinery classified instruments instruments electronic products household appliances communication products locks lamps lights toys etc.