A
Anonymous
Mar 26, 2026
Rating: 4/5
Good Value
Solid screws but wish there were more length variations in the pack. Otherwise quality is top notch.
Description
These are aluminum alloy cylinder head bolts with an internal hexagon drive, designed for secure fastening in machinery and equipment assemblies. Constructed from lightweight aluminum material, these cup head screws feature a socket design that allows for high torque application while maintaining a low profile. Available in metric sizes including M4, M5, M6, M8, and M10mm to accommodate various threading requirements. Select the specific diameter that matches your project specifications before installation. Ensure proper thread engagement and avoid over-tightening to prevent stripping the soft aluminum threads.
Reviews
Attributes
| Brand | - |
| Category | Industrial Small Parts / Connectors and Fasteners |
| Origin | - |
| Material | 7075-T6 Aluminum Alloy |
| Surface Finish | Black Anodized |
| Thread Type | Metric Coarse Pitch |
| Head Style | Socket Head Cap |
| Drive Type | Hex Allen Key |
| Strength Grade | High Tensile Strength |
| Available Sizes | M4, M5, M6, M8, M10 |
| Length Options | 10mm to 50mm |
| Package Quantity | 100 Pieces per Box |
| Compliance | RoHS Compliant |
5 reviews
A
Anonymous
Mar 22, 2026
Rating: 5/5
Excellent Hardware
Used these for my 3D printer frame assembly. The threads are clean and the anodized finish looks great.
A
Anonymous
Mar 07, 2026
Rating: 5/5
Perfect Fit
Threads are clean and precise. Fit perfectly into my aluminum extrusions without cross-threading.
A
Anonymous
Feb 17, 2026
Rating: 5/5
Lightweight & Strong
Great for reducing weight in my robotics project without sacrificing structural integrity.
A
Anonymous
Jan 29, 2026
Rating: 5/5
Fast Delivery
Arrived well packaged and organized. No missing pieces and the box is sturdy for storage.
5 FAQ
Q: Are these screws rust resistant for outdoor use?
A: Yes, the black anodized coating provides excellent corrosion resistance for outdoor applications.
Q: Can I purchase these individually instead of a box?
A: These are sold in standardized package quantities only, but bulk discounts are available.
Q: What hex key size is needed for the M6 bolts?
A: For M6 socket head cap screws, a 5mm hex key is typically required.
Q: Is there a warranty on these fasteners?
A: Yes, we offer a 30-day return policy for defective or damaged items upon receipt.
Q: What is the maximum torque specification?
A: Please refer to the technical datasheet included in the package for specific torque values per size.
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