Best M3 Screw Kits for DIY, 3D Printing, and Electronics

1. VGBUY 600pcs M3 Screw Assortment Kit, M3 Screws (8 Sizes 6-30mm) for 3D Printer DIY, Hex Socket Head Cap Screws Bolts Nuts Washer Kit, 304 Stainless Steel, 6/8/10/12/16/20/25/30mm

VGBUY M3 screw kit includes 8 sizes (6-30mm), 600pcs total. 304 stainless steel ensures corrosion-resistant, rust-proof durability. Perfect for 3D printers, DIY, electronics, and repairs.

Reinforced storage box keeps screws, nuts, and washers organized. Socket head design offers strong torque, no slipping during use.

Heavy-duty performance lasts long under stress. All-in-one kit saves time and effort for hobbyists, builders.

2. Fgruh 750PCS M3 Screws Assortment Kit, M3x6/8/10/12/16/20/25/30 mm Hex Socket Head Bolts, Nuts & Washers Assorted Set – 12.9 Alloy Steel Black Zinc Plated M3 Screw for 3D Printer,DIY

The Fgruh 750PCS M3 Screws Assortment Kit is perfect for DIY projects. It includes bolts, nuts, and washers in 8 common lengths. This kit is ideal for 3D printing, electronics, and repairs.

Made from 12.9 grade alloy steel, these screws are strong and durable. They resist wear, corrosion, and heavy loads. The black zinc plating keeps them rust-proof and oil-free.

The kit comes in a smart storage box with clear size labels. It keeps your workspace tidy and speeds up projects.

3. 600 Pcs M3 Screws Assortment Kit, M3x 6/8/10/12/16/20/25/30mm M3 Screw Kits 12.9 Alloy Steel Nuts and Bolts Assortment Kit Black Zinc Plated Hex Socket Head Screws Nuts Bolts and Washers Set

The 600-piece M3 screw kit includes screws, nuts, and washers in 8 sizes. Made of 12.9 alloy steel with black zinc plating, it resists rust and lasts long. Use it for furniture, tools, or car repairs with ease.

Each M3 screw has a smooth, burr-free finish for tight fits. The set comes in a labeled divider box for quick access and storage.

Metric sizes (6-30mm) suit most projects. The included wrench makes tightening simple. Perfect for home fixes or pro jobs, this kit is reliable and organized.

4. Kadrick Metric Screws Assortment,2240 Pcs M3 Screws Nuts Washers Assortment M3x4MM-35MM, Hex Socket Button & Cap Head M3 Machine Bolts Kit, 12.9 & 10.9 Grade Black Alloy Steel for 3D Printing

This Kadrick Metric Screws Assortment includes 2,240 pcs of M3 screws, nuts, and washers. It has 10.9 & 12.9 grade alloy steel for high strength and precise threads. All parts are neatly stored in a sturdy plastic box for easy access and organization.

The set features button head and cup head screws, ideal for common DIY and 3D printing projects. Backed by a 24-month warranty and Kadrick’s expertise in fasteners, this kit ensures reliable, long-term use.

5. Fgruh 2300PCS M3 Screws with Nuts Assortment Kit, M3x4/6/8/12/16/20/25/30/35 mm Hex Socket Button & Cap Head Bolts Nut and Washers Set, 12.9 & 10.9 Grade Black Zinc Plated for DIY, 3D Printer

Fgruh 2300PCS M3 Screws set includes 2300 pieces of bolts, nuts, and washers. It has 9 sizes: 4mm to 35mm. Hex socket button and cap head bolts suit 3D printers and DIY projects.

DIY projects are easy with this kit. 12.9 & 10.9 grade steel handles heavy loads. Black zinc plating resists corrosion and wear.

Compartmentalized storage box keeps parts tidy. Use it for electronics, bikes, or CNC machines. Flat and spring washers add stability for any task.

6. QOOSIKICC 1035 Pcs M3 Screw Assortment, M3 Bolts and Nuts Kit, Hex Socket Button Head Cap Screws and Nuts and Washers Set, Metric Machine Screw Assortment Kit, 10.9 Carbon Steel Assorted Screws Nuts

The QOOSIKICC M3 Screw Assortment includes 1035 pieces of 10.9 carbon steel screws, nuts, and washers. These parts are corrosion-resistant, strong, and built to last. They handle tough jobs without bending or rusting.

The hex socket design makes tightening easy, even in tight spaces. An Allen wrench is included for smooth, secure use.

This kit works for homes, workshops, or factories. It fits machines, cars, and appliances. Sizes range from 4mm to 30mm to meet daily needs.

7. Fgruh 720pcs M3 Screws Assortment kit, Hex Socket Head Cap Bolts, Nuts & Washers Assorted Set M3x6/8/10/12/16/20/25/30 mm, 304 Stainless Steel Hardware Kit for DIY, 3D Printer

The Fgruh 720pcs M3 Screws Assortment Kit is a complete hardware set for all your DIY needs. It includes bolts, nuts, washers, and a mini wrench. This kit is perfect for 3D printers, electronics, and RC models.

Made from 304 stainless steel, these screws resist rust and corrosion. They come in 8 common lengths, ensuring you have the right size for any project. The smooth threads and high hardness make them reliable and durable.

The organized storage box keeps everything tidy and easy to find. With clear labels, you can quickly grab what you need. This kit makes your work faster, smoother, and more efficient.

8. 1050 Pcs M3 Screws Kit, M3 Machine Screws and Nuts and Washers Set, Assorted Button Head Socket Cap Screws Nuts and Bolts Assortment Kit, Stainless Steel Metric Screw Assortment, Fully Threaded

This M3 screws kit includes 1050 pcs of stainless steel screws, nuts, washers, and a hex wrench. It offers durability with corrosion-resistant material and high hardness. Sizes range from 4mm to 35mm for versatile use.

The button head design allows balanced force and easy installation with the included hex wrench. Hex nuts and flat washers ensure precise assembly and protect surfaces during use.

Ideal for homes, workshops, or factories, this kit suits machinery, vehicles, and DIY projects. Fully threaded screws and assorted lengths meet most repair or building needs. A reliable, all-in-one solution for everyday tasks.

9. Kernmax 1120Pcs M3 Countersunk Screws Kit, M3 Flat Head Screws, Phillips Bolts Nuts Washers Set for 3D Printers, Electronics, Machinery & DIY Projects, Length 6MM-25MM, Zinc Plated

The Kernmax 1120Pcs M3 Countersunk Screws Kit is a must-have for any project. It includes high-quality M3 flat head screws and Phillips countersunk screws in 7 popular lengths. Perfect for DIY and professional use.

Made from durable carbon steel with black zinc plating, these screws resist rust and corrosion. No oily residue means cleaner handling and long-lasting performance in any condition.

Organized storage keeps everything easy to find. Versatile for electronics, 3D printers, and more. Reliable with 24-hour customer support.

10. VGBUY 600pcs M3 Screw Assortment Kit, M3 Screws (8 Sizes 6-30mm) for 3D Printer DIY, Hex Button Head Cap Screws Bolts Nuts Washer Kit, 304 Stainless Steel, 6/8/10/12/16/20/25/30mm

The VGBUY 600pcs M3 Screw Assortment Kit is a must-have for DIY projects. It includes 8 sizes of M3 screws, nuts, washers, and bolts.

High-quality 304 stainless steel ensures rust resistance and durability. These screws can handle heavy loads and last long. Perfect for 3D printing, RC cars, and electronics.

The organized storage box keeps everything tidy and easy to find. Socket head design offers better torque and stable performance. Ideal for DIY enthusiasts and hobbyists.