A
Anonymous
Apr 11, 2026
Rating: 4/5
Good Value
Quality is good for the price. Shipping was free as advertised and arrived safely.
Description
Grade 12.9 hardened medium hex double-end stud bolt M12 mold stud, M16 nut, M20 washer, M24, M30 free shipping
Reviews
Attributes
| Brand | - |
| Category | Industrial Small Parts / Connectors and Fasteners |
| Origin | - |
| Material | Alloy Steel |
| Strength Grade | 12.9 |
| Thread Size | M12, M16, M20, M24, M30 |
| Surface Finish | Black Oxide |
| Head Style | Medium Hex |
| Drive Type | Hexagonal |
| Thread Type | Double-Ended Stud |
| Tensile Strength | 1220 MPa |
| Hardness | 39-44 HRC |
| Package Weight | 1.5 kg |
5 reviews
A
Anonymous
Apr 07, 2026
Rating: 4/5
Solid Choice
Finish is nice. Threads are clean and easy to assemble. Would buy again for future projects.
A
Anonymous
Mar 24, 2026
Rating: 5/5
Heavy Duty Quality
These studs are incredibly strong. Used them for a press mold and they didn't strip under high torque.
A
Anonymous
Feb 04, 2026
Rating: 5/5
Exact Specifications
Measured the hardness and it meets the 12.9 grade standards. Very precise manufacturing.
A
Anonymous
Jan 28, 2026
Rating: 5/5
Great for Industrial Use
We ordered bulk for our factory. No failures so far in our heavy machinery setup.
5 FAQ
Q: Can I return if the size is wrong?
A: Yes, we accept returns within 30 days if the item is unused and in original packaging.
Q: Is this material stainless steel?
A: No, this is hardened alloy steel with a black oxide finish for corrosion resistance.
Q: Do you sell matching nuts separately?
A: Yes, M16 nuts are included in the variant options, and others can be found in our store.
Q: What is the lead time for shipping?
A: Items ship within 24 hours for free shipping orders within the continental US.
Q: What is the thread pitch for these studs?
A: Standard coarse pitch applies to all sizes listed in the product variations.
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