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Home / Connectors and Fasteners / 304 Stainless Steel CM Large Flat Head Ultra-Thin Countersunk Hex Screws Bolts M2 M3 M4 M5 M6 M8
Connectors and Fasteners

Attributes

Brand -
Category Industrial Small Parts / Connectors and Fasteners
Origin -
Material 304 Stainless Steel
Head Type Flat Head Countersunk
Drive Type Hex Socket (Allen)
Thread Sizes M2, M3, M4, M5, M6, M8
Surface Finish Polished Plain
Standard DIN 7991 / ISO 10642
Hardness HRC 25-30
Package Quantity 100 Pieces per Size
Net Weight 0.45 kg
Country of Origin China

5 reviews

A

Anonymous

Apr 14, 2026

Rating: 5/5

Fast Delivery

Arrived quickly and well packaged. None of the screws were bent or damaged in transit.

A

Anonymous

Apr 09, 2026

Rating: 5/5

Excellent Quality

These screws are perfect for my electronics project. The heads sit very flush and the steel feels durable.

A

Anonymous

Mar 07, 2026

Rating: 5/5

Solid Construction

No stripping on the hex socket even when tightened firmly. Will buy again for future projects.

A

Anonymous

Feb 22, 2026

Rating: 5/5

Great for Electronics

Used them for assembling a custom keyboard. The low profile is exactly what I needed.

A

Anonymous

Feb 10, 2026

Rating: 5/5

True to Size

Measured them and they match standard M3 and M4 specs exactly. No issues with threading.

5 FAQ

Q: Are these screws rust proof for outdoor use?

A: 304 stainless steel offers good corrosion resistance, but 316 is recommended for harsh marine environments.

Q: Is an Allen key included in the package?

A: No, the hex key tool is sold separately. Please ensure you have the correct size driver.

Q: What is the thread pitch for the M4 size?

A: The M4 screws feature a standard coarse thread pitch of 0.7mm.

Q: Is there a discount for bulk orders over 50 packs?

A: Yes, please contact our sales support directly for bulk pricing inquiries.

Q: Do you sell these in M10 size as well?

A: Currently, we only stock sizes up to M8 for this specific low-profile series.

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