DYWISHKEY 386-Piece M4 Hex Socket Cap Screw Assortment Kit in 12.9 Grade Alloy Steel

About this item

• 【M4 SCREW ASSORTMENT】--- Widely used in all kinds of precision machinery, classification instruments, electronic products, home appliances, printers, locks, lamps, lights, toys, etc. If you have any question or suggestion, please feel free to contact us anytime. We will do our best to provide you a pleasure shopping experience.
• 【SIZES】--- Black hex socket head cap screws measuring M4 x 5 / 6 / 8 / 10 / 12 / 16 / 20mm, along with nuts and washers, totaling 386 pieces. These items conform to the metric system standards and require a hex wrench for use (note: the hex wrench is not included in this set). The variety of sizes and ample quantities will accommodate your various needs.
• 【PACKAGE】--- All m4 black screws nuts and washers are packed in a durable and sturdy box. In order to avoid the screws being scattered or lost during use, we specially package for each different type of screws for your convenience and storage. Not only give you the best product, but also the best storage system for them.
• 【HIGH QUALITY】--- Made of high quality 12.9 grade alloy steel and the surface is treated with black oxide, which features is strength and offers good corrosion resistance in bad environment. They have excellent oxidation resistance and good wear resistance, which can ensure long time using.
• 【WIDE APPLICATIONS】--- M4 hex socket head screws nuts and washers assortment kit serves a wide range of use for professionals, amateurs, landlords, repairmen. The m4 black screw set is perfect to replace broken and missing screws. When you are mad for the missing screws, it is a perfect friend for you.