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Home / Screws / Blue Zinc Hardened Cross Recessed Flat Head Self-Tapping Screw Countersunk Self-Tapping Nail KA Electronic Small Screw M4 M5 M6

Attributes

Brand -
Category Standard Parts, Components & Industrial Consumables / Screws
Origin -
Material Zinc Plated Carbon Steel
Head Style Flat Head (Countersunk)
Drive Type Cross Recessed (Phillips)
Thread Type Self-Tapping
Available Sizes M4, M5, M6
Finish Blue Zinc Hardened
Application Electronics and Light Machinery
Hardness Rating High Tensile Strength
Package Quantity 100 Pieces per Box
Origin Manufactured in ISO Certified Facility

6 reviews

A

Anonymous

Mar 19, 2026

Rating: 5/5

Perfect for electronics repair

These screws are exactly what I needed for my laptop casing repairs. The blue zinc coating looks professional and the fit is precise.

A

Anonymous

Mar 16, 2026

Rating: 4/5

Solid choice for prototyping

Used these for a prototype enclosure. They hold well in ABS plastic. The flat head sits flush as expected.

A

Anonymous

Mar 15, 2026

Rating: 5/5

Great value for money

You get a lot of screws for the price. The hardened steel ensures they don't strip easily when driving them in.

A

Anonymous

Mar 13, 2026

Rating: 5/5

Reliable bulk supply

We use these in our workshop for various projects. Consistent quality across the M4 and M5 sizes we ordered. Highly recommended.

A

Anonymous

Mar 10, 2026

Rating: 5/5

Standard stock item now

These have become a standard item in our inventory. Customers appreciate the durability of the zinc plating against corrosion.

A

Anonymous

Mar 09, 2026

Rating: 4/5

Good quality, sharp threads

Very sharp self-tapping threads that cut through plastic easily without cracking. One star off because the box was slightly dented on arrival.

5 FAQ

Q: Do you offer a bulk discount for over 50 boxes?

A: Yes, we offer tiered pricing for bulk orders. Please contact our sales department directly through the 'Contact Seller' button for a custom quote.

Q: Are these screws suitable for outdoor use?

A: While the blue zinc plating offers some corrosion resistance, these are primarily designed for indoor electronic applications. For harsh outdoor environments, we recommend stainless steel variants.

Q: Can these be used in aluminum sheets?

A: Yes, the self-tapping design works well with soft metals like aluminum, provided you drill an appropriate pilot hole first to prevent material warping.

Q: Is the head compatible with a #2 Phillips driver?

A: Yes, the cross recessed head is standardized to fit a #2 Phillips driver for sizes M4 through M6, ensuring good torque transfer.

Q: What is the length of the M4 screws in this pack?

A: This specific listing includes assorted lengths. Please check the dropdown menu to select the specific length you require, ranging from 6mm to 20mm.

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