860PCS M1.2–M3 Black Countersunk Screws Kit | Carbon Steel Phillips

860-Piece Black Cross Flat Head Screws Kit – M1.2 to M3

Keep every precision device firmly fastened with this comprehensive 860-piece countersunk screw assortment. Spanning sizes M1.2 through M3, this kit is the go-to solution for eyeglasses repair, computer maintenance, electronics assembly, and fine instrument work — all in one neatly organised set.

Made in Mainland China.

Key Features

• 860-Piece Variety Pack: Covers a wide range of M1.2–M3 sizes so you always have the right screw on hand for any precision task.
• 4.8-Grade Carbon Steel: High-strength carbon steel construction ensures durable, long-lasting fastening performance.
• Electrolytic Oxide Treatment: A dense oxide layer formed through electrolytic processing improves resistance to rust and everyday wear.
• Countersunk (Flush) Head Design: The sunken head profile sits flush with the surface for a clean finish and secure fit in tight or recessed spaces.
• Phillips (Cross) Drive: Standard cross-head drive compatible with most precision screwdrivers for easy installation and removal.
• Multi-Purpose Use: Ideal for eyeglasses repair, laptop and computer maintenance, cameras, circuit boards, watches, and other precision instruments.

Specifications

Package Contents

• 860 × Black Carbon Steel Countersunk Screws (assorted M1.2–M3 sizes)

Notes

• Actual color may vary slightly from images due to monitor brightness and lighting conditions.
• Please allow minor measurement tolerances (±0.5 mm) for the data provided.

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Frequently Asked Questions

Q: What size range do these countersunk screws cover?

A: The kit includes 860 black carbon steel Phillips flat head screws ranging from M1.2 to M3, making them suitable for a wide variety of precision and micro-fastening applications including eyeglasses frames, laptop chassis, circuit boards, and small electronics.

Q: Are these screws rust-resistant?

A: Yes. Each screw undergoes an electrolytic treatment that creates a dense oxide layer on the carbon steel surface, significantly improving resistance to rust, corrosion, and everyday wear — keeping your repairs looking neat and lasting longer.

Q: What type of screwdriver do I need to use these screws?

A: These screws use a standard Phillips (cross) drive head. A precision Phillips screwdriver in the appropriate size (typically #000 to #1 for M1.2–M3 screws) is recommended for best results in eyeglasses repair and computer maintenance tasks.

Q: Are the screws organised by size in the kit?

A: The 860-piece set is supplied as an assorted collection. We recommend sorting them into a small compartment organiser by size once received for the most efficient use during repairs and assembly work.