M4 Nuts and Bolts Set, 405 Pcs Hexagon Socket Head Cap, Hex Socket Cap Head Screws, Black Machine Screw Bolts and Nuts and Flat Washers Assortment Kit, for DIY Bicycle Motorcycle Repair
Details
- SizeM4-405
- ColourWhite
- MaterialAlloy Steel
- BrandYOUYIDUN
- Item dimensions L x W x H17 x 10 x 2.4
Description
🔧 Elevate your repair game with the ultimate M4 nuts & bolts arsenal!
- UNMATCHED DURABILITY - Crafted from premium 12.9 grade alloy steel for corrosion, wear, and heat resistance—built to last through any project.
- EFFORTLESS ORGANIZATION - Transparent, compartmentalized storage box keeps every piece visible and accessible—no more hunting or mix-ups.
- ALL IN ONE DIY POWER KIT - 405 pieces covering 10+ bolt sizes plus nuts and washers—ready for everything from bike repairs to mechanical maintenance.
- PRECISION FIT SECURE HOLD - Hex socket cap design with tight, smooth threads and washers to prevent loosening and protect your components.
- VERSATILE PRO GRADE SOLUTION - Perfect for professionals and hobbyists alike—ideal for electronics, vehicles, furniture, and more.
The M4 Nuts and Bolts Set includes 405 high-strength, corrosion-resistant pieces made from 12.9 grade alloy steel. Featuring hex socket cap screws, nuts, and washers in a wide range of sizes, all neatly organized in a durable transparent box. Designed for professionals and DIY enthusiasts tackling bicycle, motorcycle, furniture, and mechanical repairs with precision and reliability.
Specifications
| Fastener type | Socket Head |
| Head style | Flat, Hex, Socket Cap |
| Finish type | Black Phosphate |
| Item diameter | 4 Millimetres |
| Thread size | M3 M4 M5 M6 M8 |
| Number of pieces | 1 |
| Compatible groove diameter | 4 Millimetres |
| Grade rating | 12.9 |
| Manufacturer | CHINA |
| Item Weight | 450 g |
| Item model number | 1 |
| Finish | Black Phosphate |
| Item Package Quantity | 1 |
| Head Style | Flat, Hex, Socket Cap |
| Cutting Diameter | 4 Millimetres |
| Measurement System | NO |
| Batteries included? | No |
| Batteries Required? | No |
Reviews
C**E
Good selection of sizes would recommend
Great set at good price, I use in my 3d printed models and this has good selection of sizes.
O**4
A really high quality set
Bought this set as I had a nylon set of screws in the same sizing but unfortunately nylon just wasn't strong enough for my project. These however were perfect, exactly to their dimensions and really nice quality. There is a good variety of sizes making it easily reusable for many different projects so in my opinion it is really nice value for money. I recommend this set
P**W
Economy M4 bolts
Bought these for use with bicycles. They are economical and the qualms adequate. Hex head is fine and works with all my tools. Huge selection of lengths and will keep me going forever. They don’t have the finish of a more expensive bolt but do the job.
A**R
Nuts......and bolts.
This is as described and a useful selection to have in the workshop.
M**N
Good
As described, parts are good quality. Saves scrabbling around looking for bolts
A**A
Couldn't be happier ☺️
Comes as described, fairly good quality from a hobbyist point of view.Decent value for money.
Z**S
Decent quality kit
I only needed a few bolts but ended up buying this massive pack. Its decent quality so I have plent of future spares.My only gripe was that one of the allen keys was missing but no big deal.
G**N
.
good value for money
Common Questions
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