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Home / Connectors and Fasteners / Grade 10.9 High-Strength Pan Head Socket Screws Round Head Bolts Semi-Round Cup Screws M2 M3 M4 M5 M6 M10

Attributes

Brand -
Category Industrial Small Parts / Connectors and Fasteners
Origin -
Material Alloy Steel
Strength Grade 10.9
Head Style Pan Head
Drive Type Hex Socket
Thread Standard Metric Coarse
Surface Finish Black Oxide
Thread Coverage Half-Threaded
Tensile Strength 1040 MPa (Minimum)
Available Sizes M2, M3, M4, M5, M6, M10
Package Type Bulk Box

5 reviews

A

Anonymous

Mar 19, 2026

Rating: 4/5

Good but dusty

Quality of the steel is excellent. Arrived with some industrial oil residue, but that is expected.

A

Anonymous

Mar 08, 2026

Rating: 5/5

Bulk value

Needed many M5 screws for a project. This pack was perfect and saved me multiple trips to the store.

A

Anonymous

Mar 08, 2026

Rating: 5/5

Solid Hardware

Used these for assembling a heavy-duty workbench. The 10.9 grade holds up well under tension.

A

Anonymous

Feb 22, 2026

Rating: 5/5

Great for automotive

Used M6 size for an engine cover bracket. High strength gives me peace of mind for vibration.

A

Anonymous

Jan 26, 2026

Rating: 5/5

Perfect Fit

Threads are precise and match standard metric nuts perfectly. No cross-threading issues encountered.

5 FAQ

Q: Is this material stainless steel?

A: No, these are made from alloy steel with a black oxide finish for maximum strength.

Q: Do you have M8 size available?

A: Currently, stock is limited to the sizes listed in the product description.

Q: Can I return opened packs if I ordered the wrong size?

A: Please check our return policy page for details on opened hardware items.

Q: What is the yield strength of these screws?

A: The minimum yield strength for Grade 10.9 is approximately 940 MPa.

Q: Are these coated for corrosion resistance?

A: Yes, they feature a black oxide finish which offers mild corrosion protection.

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