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Home / Connectors and Fasteners / Bairuite Grade 12.9 High-Strength Extended Full-Thread Socket Head Cap Screws M3*6X8

Attributes

Brand -
Category Industrial Small Parts / Connectors and Fasteners
Origin -
Material Alloy Steel
Strength Grade 12.9
Thread Size M3
Screw Length 6mm
Head Style Hex Socket Cap
Drive Type Hex Socket
Surface Finish Black Oxide Coated
Thread Style Fully Threaded
Package Quantity 100 Pieces
Country of Origin China

5 reviews

A

Anonymous

Mar 09, 2026

Rating: 5/5

Reliable fastener

Reordered multiple times. Consistent quality from Bairuite.

A

Anonymous

Mar 02, 2026

Rating: 5/5

Excellent tensile strength

Used these for a machinery repair. They held up under high torque without stripping.

A

Anonymous

Feb 12, 2026

Rating: 5/5

High grade steel

You can feel the difference in weight and hardness compared to standard screws.

A

Anonymous

Feb 09, 2026

Rating: 4/5

Good value bulk pack

Quality is solid, though packaging could be better organized.

A

Anonymous

Feb 04, 2026

Rating: 5/5

Perfect for electronics housing

M3 size is exact. Great for securing small components securely.

5 FAQ

Q: Are these corrosion resistant?

A: They have a black oxide finish for mild corrosion resistance.

Q: Is the thread pitch standard?

A: Yes, these feature standard coarse metric thread pitch.

Q: Can I use these on aluminum?

A: Yes, but ensure proper torque to avoid stripping the aluminum threads.

Q: What hex key size is needed?

A: A 2.5mm hex key is recommended for installation.

Q: Do you offer bulk pricing?

A: Please contact our support team for quotes on large orders.

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