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Home / Connectors and Fasteners / Black 304 Stainless Steel CM Ultra-Thin Flat Head Hex Socket Screws Countersunk Bolts M2-M12

Attributes

Brand -
Category Industrial Small Parts / Connectors and Fasteners
Origin -
Material 304 Stainless Steel
Color Black
Head Style Ultra-Thin Flat Head
Drive Type Hex Socket (Allen)
Thread Size Range M2, M2.5, M3, M4, M5, M6, M8, M10, M12
Thread Standard Metric Coarse
Industrial Standard DIN 7991 / ISO 10642
Surface Treatment Black Oxide Coating
Hardness 25-30 HRC
Package Type Plastic Storage Box Kit

5 reviews

A

Anonymous

Apr 19, 2026

Rating: 5/5

Slim design works well

Used these for a custom keyboard build. The ultra-thin head allowed me to fit components where standard bolts would not. Very satisfied with the purchase.

A

Anonymous

Mar 04, 2026

Rating: 5/5

Precise threads

Threads are clean and cut precisely. No stripping when tightening with a standard hex key. The assortment box makes it easy to find the right size.

A

Anonymous

Mar 01, 2026

Rating: 5/5

Good value for money

Received the kit quickly. The variety of sizes from M2 to M12 covers most of my needs. The invoice was provided as described in the listing.

A

Anonymous

Feb 03, 2026

Rating: 5/5

Perfect for low-profile builds

These screws are exactly what I needed for my electronics enclosure. The head is incredibly thin and sits flush without any issues. The black finish looks professional.

A

Anonymous

Jan 30, 2026

Rating: 5/5

Great quality stainless steel

I was worried about the black coating rubbing off, but it seems durable. The 304 steel ensures no rust in my indoor workshop projects. Highly recommend.

5 FAQ

Q: What is the return policy if the sizes don't fit?

A: We offer a 30-day return policy for unused items in original packaging. Please initiate a return request through your order history page.

Q: What hex key size is needed for the M3 screws?

A: For the M3 size in this series, a 2.5mm hex key is typically required. Please check the specific size chart included in the package.

Q: Are these screws metric or imperial?

A: These are strictly metric sizes, ranging from M2 to M12. They are not compatible with imperial threads.

Q: Is this suitable for outdoor marine environments?

A: While 304 stainless steel offers good corrosion resistance, we recommend 316 stainless steel for harsh marine environments. These are best for indoor or protected outdoor use.

Q: Can I get a VAT invoice for this purchase?

A: Yes, we offer special invoices. Please contact our customer support team with your order number and billing details after purchase.

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