






🔩 Lock in strength, unlock your project’s potential!
The M12 Hex Bolt set features three 12.9 grade high tensile alloy steel bolts, each 90mm long with partial threading. Designed for heavy-duty industrial, automotive, and woodworking applications, these black hex bolts combine superior strength, precision engineering, and corrosion resistance to deliver reliable, professional-grade fastening solutions.








| ASIN | B08TW5VR1M |
| Best Sellers Rank | 36,270 in DIY & Tools ( See Top 100 in DIY & Tools ) 163 in Hex Bolts |
| Brand Name | ANSIEDIO |
| Colour | black |
| Country Of Origin | China |
| Customer Reviews | 4.5 out of 5 stars 63 Reviews |
| Drive System | External Hex |
| Exterior Finish | Black |
| Exterior finish | Black |
| Fastener Size | M12×90mm |
| Fastener Type | Hexagon Bolt |
| Finish Types | Brushed |
| Grade Rating | 12.9 |
| Head Type | Hex |
| Head style | Hex |
| Item Diameter | 12 Millimetres |
| Item Hardness | Grade 12.9 |
| Manufacturer | ANSIEDIO |
| Manufacturer Grade | grade 12.9 |
| Manufacturer grade | grade 12.9 |
| Material | Alloy Steel |
| Material Type | Alloy Steel |
| Number of Pieces | 3 |
| Screw Head Style | Hex |
| Size | (Partial Threaded) M12×90mm,3 pcs |
| Thread Class | 2A |
| Thread Coverage | Partially Threaded |
| Thread Size | M12 |
| Thread Style | Right Hand |
| Thread Type | partial threaded |
| Thread size | M12 |
| Unit Count | 3.0 Count |
T**S
M12 Bolt
If anyone looking for tread pitch on M12 bolt is 1.75 bolt itself is great 10/10 but not good for what i intended
R**.
Used on BMW to replace rear toe arms bolts
On E90 toe arm bolt snapped, have to drill out original 10.9 bolt out and as thread was damaged I have to set bolt and nut setup. So decided for this 12.9 bolt and A2 nut, so far it holds well.
C**T
Bolt
As ordered. Does the job well
J**E
Bolt
Good quality, fast delivery
M**N
Good quality
Exactly as described
M**.
Bad
They advertise set screws as bolts, it's as if they don't know the difference
L**P
Strength and more strength!
Exactly what is expected of a 12.9 grade high-tensile bolt. However do remember that these do end up with surface rust, just a limitation of the design, stainless can't match the strength of these, so what you do is oil up the exposed parts or just coat with a thin layer of RTV to help keep that pesky rust at bay. They were a bit pricey, but I needed them in a pinch and sometimes that comes at a pinch to the wallet too, just life.
D**E
Exactly what I needed
I took the measurements before I ordered and these were exactly what I needed
Trustpilot
1 month ago
2 months ago