1600pcs M3 Screw Kit, 12.9 Socket Cap Head & 10.9 Socket Button Head Metric Screw Assortment with Nuts and Washers, Alloy Steel, Black Zinc Plated, for 3D Printing

Keep your most-used M3 hardware organized and ready with this 1600-piece M3 screw kit. It includes socket cap head screws, socket button head screws, matching M3 nuts, and flat washers in a range of practical sizes for assembly, repair, and replacement work. The socket cap head screws are made from 12.9 grade alloy steel for high-strength fastening, while the socket button head screws are made from 10.9 grade alloy steel for dependable everyday use. With black zinc plating, the fasteners offer clean threads, smooth installation, and added resistance to wear and corrosion. Packed in a compartmentalized storage box with a matching wrench and tweezers, this metric screw assortment is ideal for 3D printing, robotics, electronics, RC projects, laser-cut parts, furniture assembly, prototype builds, and general DIY maintenance.

• Complete 1600PCS M3 Screw Assortment Includes 280 pcs M3 hex socket cap head screws in 5/6/8/10/12/16/20/25/30mm, 250 pcs M3 hex socket button head screws in 6/8/10/12/16/20/25/30/35mm, plus 535 M3 nuts and 535 flat washers for assembly, repair, and replacement needs.
• Dual Head Styles with Accurate Strength Grades This M3 screw kit includes two commonly used head types in one box. The socket cap head screws are made from 12.9 grade alloy steel for high-strength fastening, while the socket button head screws are made from 10.9 grade alloy steel for dependable performance in everyday applications.
• Alloy Steel with Black Zinc Plated Finish Made from durable alloy steel and finished with black zinc plating, this metric screw assortment offers clean threads, smooth installation, and added resistance to wear and corrosion for workshop, garage, and home use.
• Organized Storage Box for Easy Access All M3 bolts, nuts, and washers are sorted in a compartmentalized case with a matching wrench and tweezers to help you quickly find the size you need, keep hardware neatly organized, and improve efficiency during assembly and maintenance work.
• Ideal for 3D Printing and DIY Projects Designed for 3D printing, robotics, electronics, RC hobbies, laser-cut parts, furniture assembly, prototype builds, and general DIY repair where reliable M3 metric fasteners are frequently required.