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🛠️ Elevate your projects with bolts that mean business!
The uxcell M3 x 40mm Alloy Steel Hex Bolt Socket Head Cap Screws come in a pack of 50, made from high-strength 12.9 grade alloy steel with a sleek black oxidation finish. Designed for precision and durability, these fully threaded M3 bolts feature a 0.5mm thread pitch and a hex socket head for secure fastening in industrial, DIY, and specialized applications.











| Asin | B00W97R5KU |
| Best Sellers Rank | #277,282 in Industrial & Scientific (See Top 100 in Industrial & Scientific) #1,614 in Socket Head Screws |
| Brand | uxcell |
| Color | Black |
| Compatible Groove Diameter | 3 millimeters |
| Customer Reviews | 4.6 4.6 out of 5 stars (143) 4.6 out of 5 stars |
| Drive System | External Hex |
| Exterior Finish | Alloy Steel |
| Fastener Size | M3 |
| Fastener Type | Hexagon Bolt |
| Finish Types | Black Oxidation |
| Grade Rating | grade_12.9 |
| Head Type | Socket |
| Item Diameter | 3 millimeters |
| Item Dimensions | 1.97 x 1.57 x 0.79 inches |
| Item Weight | 0.27 g |
| Manufacturer | uxcell |
| Material Type | Alloy Steel |
| Metal Type | Alloy Steel |
| Model | a15030300ux0019 |
| Number Of Items | 50 |
| Number Of Pieces | 50 |
| Outside Diameter | 3 millimeters |
| Part Number | a15030300ux0019 |
| Screw Head Style | Hex |
| Screw Point Style | Round Point |
| Set Name | 50 |
| Set Screw Thread Type | Metric |
| Size Name | 3 inches |
| Thread Class | 2B |
| Thread Coverage | Fully Threaded |
| Thread Size | M3 |
| Thread Style | Right Hand |
| Thread Type | Metric |
| Unit Count | 50 Count |
User
Good Quality
⭐️⭐️⭐️⭐️⭐️ Seller had Super Fast Shipping Very Nice item in Very Good Condition with a High Quality Appearance Very Good Value for the Price ⭐️⭐️⭐️⭐️⭐️
User
So.... i bought them for a out of the ordinary "project"
i have a Walther G22 in which parts for it just dont exist, and i dont feel like messing with sending it off. so i got some bad ammo which ended up blowing the charging handle off the rifle and ended up not repairable the rifle itself was fine. i bought these along with a set of nuts to go with them and did some rigging to "make" a new charging handle (in which now i have 50 replacements for). so far after around 500 rounds of .22LR ammo the first is still living good. so if these can take the forces of a rifle bolt moving around i'd come to think these would be good in the least for other maybe more relevant uses.
User
They're bolts
They're still holding the parts I bought them for together.
User
Good Product
I bought these for use on a 3d printing project. They worked as expected. No issues with stripped threads or bent shafts.
User
Great
I needed some of these screws for my Prusa mk3s. It was the cheapest option and was overnighted. Highly recommend.
User
Five Stars
as described and oiled in a sealed bag. Top notch
User
Five Stars
great product. exactly what I ordered
User
Good product Nice finish
Machined well .. count was spot on.
User
Super achat
Super pour mes besoin
User
Exactly as listed, nice item
Difficult to say much about these really, they are for a robotic project and they arrived really quickly, were exactly as described, and had a nice firm Allen key type head which I find better than pozi or flat generally, and easier to get an Allen key into a small space.Measurements were the same as listed as well .
User
Schrauben halt ;-)
Was soll man dazu mehr sagen? 🤣🤣
User
Articolo conforme alla descrizione.
Il princiale vantaggio è che le misure sono molto difficili da reperire in commercio,quindi tutto sommato vale la pena di attendere il tempo di spedizione che, certamente, non è breve. Soddisfatto.
User
Vis 6pans très bien fini , c'est exactement ce que je Voulais, bien emballé dans son enveloppe à bulles que du bon merci
Bonsoir à tous et toutesJe suis très content de mon achat, rien de spécial à dire , c'est du tout bon
Trustpilot
3 days ago
3 weeks ago