860-Piece M1.2–M3 Black Countersunk Screw Kit | Carbon Steel
860-Piece M1.2–M3 Black Countersunk Screw Kit | Carbon Steel
860-Piece Black Cross Flat Head Screw Kit | M1.2–M3 Carbon Steel
Keep every precision project fastened and flush with this comprehensive 860-piece black countersunk screw assortment. Covering sizes M1.2 through M3, this kit is the go-to solution for eyeglasses repair, computer maintenance, electronics servicing, and fine instrument assembly — everything you need in one tidy, organized case.
Why You'll Love This Screw Kit
- 860 Pieces, Multiple Sizes: A generous variety of screws ranging from M1.2 to M3 means you'll always have the right fastener on hand for any small-scale or precision task.
- Grade 4.8 Carbon Steel: Engineered for strength and long-lasting durability — these screws won't strip or bend under normal torque.
- Electrolytic Oxide Treatment: Each screw features a dense, electrochemically applied oxide layer that significantly improves resistance to rust, corrosion, and everyday wear.
- Countersunk (Sunken) Head Design: The flush-fitting head sits cleanly into the surface material, creating a smooth finish and a secure, wobble-free hold — ideal for tight tolerances in electronics and eyewear frames.
- Cross (Phillips) Drive: Compatible with standard Phillips screwdrivers and precision bit sets for quick, reliable installation.
- Multi-Purpose Assortment: Perfect for eyeglasses frames, laptop and desktop computer panels, cameras, small appliances, circuit board enclosures, and hobbyist metalworking projects.
Specifications
- Material: Grade 4.8 Carbon Steel
- Finish / Color: Black (electrolytic oxide treatment)
- Drive Type: Cross / Phillips
- Head Type: Countersunk (Flat Head)
- Size Range: M1.2 – M3
- Quantity: 860 pieces
- Kit Dimensions: 19.6 × 13.3 × 2.2 cm
- Country of Origin: Made in Mainland China
Package Contents
- 860 × Black Cross Flat Countersunk Head Screws (assorted M1.2–M3 sizes)
Great for These Applications
- Eyeglasses & spectacle frame repair
- Laptop, desktop PC, and computer peripheral maintenance
- Camera, drone, and electronics assembly
- Miniature and model building
- Instrument and small appliance servicing
- DIY metalworking and hobby projects
Looking for more handy workshop tools? Check out our Air Compressor Pressure Gauge – DIY Tool or our Electromagnetic Induction Tester – Circuit Fault Detector to build out your toolkit.
Note: Actual color may vary slightly from screen images due to monitor brightness and lighting conditions. Please allow a minor measurement tolerance for dimensional data.
Learn more: OSHA on personal protective equipment
Frequently Asked Questions
Q: What sizes are included in the 860-piece black countersunk screw kit?
A: The kit includes a comprehensive assortment of cross flat head countersunk screws spanning sizes M1.2 through M3. Multiple lengths within each diameter are included so you have a wide selection ready for eyeglasses repair, computer maintenance, and precision electronics assembly.
Q: Are these carbon steel screws rust-resistant?
A: Yes. Each screw undergoes an electrolytic treatment that forms a dense oxide layer on the surface, providing meaningful resistance to rust, corrosion, and general wear — making them reliable for both workshop use and everyday small-device repairs.
Q: What screwdriver type do I need for these screws?
A: These screws feature a cross (Phillips) drive, so a standard Phillips-head screwdriver or precision Phillips bit set is all you need. Their countersunk head design ensures a flush, clean finish once fully seated.
Q: Is this kit suitable for repairing eyeglasses frames?
A: Absolutely. The smaller sizes in this kit (M1.2, M1.4, M1.6) are precisely the dimensions commonly used in eyeglasses and spectacle frames, making this assortment an excellent choice for optical repairs at home or in a professional setting.