1640 Pcs Screws Bolts and Nuts Assortment Set,Metric Machine Screws M3 M4 M5 M6 Socket Head Cap Screws 12.9 Grade

【𝗦𝗰𝗿𝗲𝘄 & 𝗕𝗼𝗹𝘁 𝗔𝘀𝘀𝗼𝗿𝘁𝗺𝗲𝗻𝘁 】Various M3 M4 M5 M6 Bolt Screws Nuts Meet All Demands.According with standardized metric system. And the average error is less than 0.01mm.
【Anti Rust Upgrade】 As a professional fastener manufacturer, we are fully prepared for the transportation of products to various parts of the world. We have used an appropriate amount of anti rust oil to provide more lubrication and protection. You can work more efficiently without worrying about repeated oiling due to rust.
【Good storage and assortment】All These Screws are Packed In a Sturdy Easy-use Plastic Storage Box, Organized Conveniently and Easily.
【High quality】More than 20 Years of experience in fastener design and production.Made of high quality 12.9 grade alloy steel , which features is strength and offers good corrosion resistance in bad environment.
【Can be widely used】in all kinds of precision machinery, classified instruments, instruments, electronic products, household appliances, communication products, locks, lamps, lights,toys,etc

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