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🔩 Lock in strength, style, and reliability—because your projects deserve the best.
This set of 25 M8 x 20mm hex head bolts is crafted from premium 304 stainless steel, offering exceptional corrosion resistance and Grade 8 hardness with a maximum shear strength of 275 MPa. Fully threaded with a precise 1.25mm pitch, these bolts excel in high-vibration and clockwise rotation applications, making them ideal for industrial machinery, woodworking equipment, and automotive use. The bulk pack ensures you’re always ready to build, fix, or innovate with confidence.










| ASIN | B08YR7JQT6 |
| Best Sellers Rank | #8,074 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #26 in Hex Bolts |
| Brand | Juvielich |
| Color | Silver |
| Compatible Groove Diameter | 8 millimeters |
| Customer Reviews | 4.7 out of 5 stars 309 Reviews |
| Exterior Finish | Unfinished |
| Fastener Size | M8x20mm |
| Fastener Type | Hexagon Bolt |
| Finish Types | Unfinished |
| Grade Rating | Grade 8 |
| Head Style | Hex |
| Head Type | Hex |
| Item Diameter | 13 millimeters |
| Item Hardness | Grade 8 |
| Manufacturer | Juvielich |
| Manufacturer Grade | Grade 8 |
| Material | Stainless Steel |
| Material Type | Stainless Steel |
| Maximum Shear Strength | 275 MPa |
| Metal Type | Stainless Steel |
| Model | M8x20mm Hex Bolt |
| Number Of Items | 25 |
| Number of Pieces | 25 |
| Part Number | FM6002N3010KS |
| Screw Head Style | Hex |
| Set Name | 25Pcs M8 Hex Bolts M8x20mm Hex Head Bolt 304 Stainless Steel |
| Set Screw Thread Type | Metric |
| Size Name | M8*20 mm |
| Thread Coverage | Fully Threaded |
| Thread Size | m8-1.25 |
| Thread Style | Right Hand |
| Thread Type | Metric |
| Unit Count | 25 Count |
J**E
Solid M10 Hardware for 3D-Printed Drill Attachments
I used this M10 bolt and nut set as the “core” for a 3D-printed attachment that chucks into a power drill, and it worked really well for that kind of project. The bolts are straight, threads are clean, and the 60mm length is a nice sweet spot — long enough to pass through a printed part, washers, and nut with room to spare, without feeling absurdly oversized. The 304 stainless feels solid and inspires confidence when you’re spinning it with a drill; no sketchy flex or mystery-metal vibes. The included flat and spring washers are a nice bonus. Having everything in one kit made it easier to design the print around the actual stack height (bolt head + washer + part + washer + nut). For 3D printing specifically, the tolerances were consistent enough that I could model the holes for an M10 clearance fit and have everything line up without needing to ream or force it. Only downsides: the nuts are a bit chunky, so if you’re designing a compact part or recessing them into the print, you’ll want to account for their height and outer diameter. The washers are also pretty standard thickness — fine for most uses, but if you want a really wide load spread on plastic, you might end up upgrading to larger washers later. Overall, though, for a simple, sturdy, metric hardware set to pair with a 3D-printed drill attachment, this did exactly what I needed and made the mechanical side of the project pretty painless
O**G
Perfect buy
Perfect
J**9
Good Bolts !
The set of bolts are decent products. It had a good sturdy thread and quality. It is handy to have its in the tool box. I used its to fix things around the house. It served its purpose . Good Value for the price. Recommend it ! Great Shipping! Thanks !
K**S
Good service
Product correct with fast shipping at a fair price /
A**G
Helped with Brake Job
Worked with removing the brake cylinders on my car.
C**S
Clean cut, nice threads, fit is good
Decent hardware as far as I can tell. Clean cut, nice threads, etc. It'll be used indoors in a controlled environment, so they should do very well.
M**N
M6 x 40mm
Great pack for the price!
J**.
Nice bolts
Nice and sturdy.
Trustpilot
2 weeks ago
1 month ago