Sutemribor M4 Button Head Socket Screw Assortment, 304 Stainless Steel, 7 Lengths
Product description
For builders assembling machinery, removable panels, or small electronic projects, having several M4 screw lengths on hand can make it easier to match fasteners to different parts. This Sutemribor kit combines button head screws with matching nuts and washers.
The assortment covers seven screw lengths, from M4 x 5mm through M4 x 20mm. That range can also be useful for prototyping or keeping common hardware together for repair work.
If you only need one exact screw size in quantity, buying that size individually may be a more direct approach. This kit is aimed at mixed jobs where having several lengths and matching hardware together is useful.
Usage tips
Match the screw length to the part and assembly before fastening, the kit includes M4 x 5, 6, 8, 10, 12, 16, and 20mm screws. The internal hex drive is designed for a hex wrench, which is not included, so you will need the appropriate tool separately. The recessed drive can be useful when access is limited compared with a fastener that requires an external head to grip.
The assortment is described for machine assembly, removable panels, instruments, electronics, household appliances, lighting, and other small projects. In practice, it could suit a repair session that calls for a few different M4 lengths, or a prototyping setup where parts may need to be assembled and taken apart. The clear case has ten labeled compartments to help keep sizes and hardware organized. Keep the small parts away from children.
Tech specs
- Type: M4 button head socket cap screws, nuts, flat washers, and lock washers
- Material: 304 stainless steel
- Color: Silver
- Drive type: Internal hex
- Screw pitch: 0.7 mm
- Screw lengths: 5, 6, 8, 10, 12, 16, and 20mm
- What’s included: 20 screws each in 5, 6, 8, 10, and 12mm, 15 each in 16 and 20mm, 51 M4 hex nuts, 102 M4 flat washers, 102 M4 lock washers
- Total quantity: 385 pieces
- Storage: Clear plastic box with ten labeled compartments
Pros
The main practical advantage is having multiple lengths and matching nuts and washers in one organized kit, rather than sourcing each component separately. The 304 stainless steel construction and internal hex drive are documented features, while the selection of lengths supports a range of small assembly tasks.
Buyer feedback is generally positive about the assortment, convenience, and how the fasteners work for projects, some mention prototyping and 3D printer upgrades. Opinions on size are mixed, and some buyers report that the screws are less durable than expected, particularly when they meet resistance. Those comments are worth weighing for assemblies that need substantial tightening.
Buying verdict
A solid pick if you regularly handle small M4 assemblies and want a selection of screw lengths plus matching washers and nuts in one case. It may not suit you if your job calls for a known quantity of just one size, or if the fasteners will face considerable resistance during tightening: buyer feedback includes concerns about stripping, so this assortment should not be treated as a guarantee of performance in demanding applications.