A
Anonymous
Mar 27, 2026
Rating: 5/5
Bulk Order Success
Ordered 500 units for our assembly line. Consistency across the batch was impressive.
Description
Partially Threaded Grade 12.9 Extended Length Socket Cap Head Screws M18 m20 m22 M24 m27 m30-600mm Cylinder Bolts
Reviews
Attributes
| Brand | - |
| Category | Industrial Small Parts / Connectors and Fasteners |
| Origin | - |
| Material | Alloy Steel |
| Strength Grade | 12.9 |
| Thread Type | Metric Coarse |
| Head Style | Socket Head Cap |
| Drive Type | Hex Socket (Allen) |
| Surface Finish | Black Oxide |
| Thread Configuration | Half-Threaded |
| Diameter Range | M18 - M30 |
| Maximum Length | 600 mm |
| Compliance Standard | ISO 4762 |
5 reviews
A
Anonymous
Mar 18, 2026
Rating: 5/5
Excellent Strength
Used these for structural framing on a heavy duty project. The 12.9 grade held up perfectly under high torque.
A
Anonymous
Mar 15, 2026
Rating: 5/5
Hard to Find Size
Glad to find 600mm length in stock. Exactly what I needed for my custom machinery build.
A
Anonymous
Mar 02, 2026
Rating: 5/5
Precise Threads
Threads engaged smoothly without any cross-threading issues. Very satisfied with the machining quality.
A
Anonymous
Jan 29, 2026
Rating: 4/5
Good Value
Solid screws for the price. Packaging could be better to prevent scratching during shipping.
5 FAQ
Q: Do these come with material certification?
A: Yes, mill test certificates are available upon request for bulk orders.
Q: Is the thread fully rolled or cut?
A: The threads are rolled to maintain the integrity and strength of the Grade 12.9 material.
Q: Are these suitable for outdoor use?
A: The black oxide finish offers moderate corrosion resistance. For harsh environments, we recommend additional coating.
Q: Can I order custom lengths between sizes?
A: Standard lengths are listed. For custom cuts, please contact our sales department directly.
Q: What is the recommended torque for M24?
A: Please consult a standard torque table for Grade 12.9 M24 fasteners based on your lubrication conditions.
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