Sutemribor M4 Screw, Nut, and Washer Set

Quick overview

For anyone assembling or repairing machinery, removable panels, or small projects that use M4 hardware, this Sutemribor assortment groups several screw lengths with matching nuts and washers. The kit contains 365 pieces of black, fully threaded hex socket head cap screws in lengths from 6 mm to 25 mm, along with nuts, lock washers, and flat washers. Its 12.9-grade alloy steel construction is intended for strength and wear resistance, while the recessed hex drive gives you a fastening option that can be less prone to slipping than a basic slotted head. From the way it is set up, the appeal is having several lengths and related hardware ready in one box rather than sourcing each item separately.

That range can be useful at a workbench: when fitting a removable panel, you can compare the available screw lengths and pair a fastener with its nut and washer instead of pausing to find another pack. A solid pick if you handle varied M4 assembly jobs and want the small parts organized together. Keep in mind that the hex wrench is not included, so you’ll need the appropriate tool separately.

Best use cases

This set is aimed at general fastening and assembly, including machinery, instruments, electronics, household appliances, lighting, toys, and other projects that call for M4 screws. The combination of seven listed screw lengths gives you more flexibility than buying a single-length pack, especially when the parts being joined vary in thickness. Nuts and both flat and lock washers add options for assembling a joint, rather than leaving you to gather those pieces elsewhere.

The black finish and alloy steel construction may suit a project where those fastener characteristics are preferred. The description also identifies the screws as corrosion- and wear-resistant, but it does not specify a coating or conditions for exposure, don’t treat that claim as a substitute for checking whether the fasteners suit a particular environment. You may want to skip it if your job calls for a different size, a specified finish, or exact quantities of each screw length—the per-size counts aren’t provided here.

Tips for day-to-day use

The screws are fully threaded and use a recessed hex socket, so select a hex wrench that fits the drive before starting. Sort the parts back into their labeled compartments after a repair, that makes it easier to tell which lengths remain and reduces the chance of mixing small hardware between jobs. The clear plastic box has 10 compartments with labels, which should help with routine storage and carrying, though the listed information doesn’t describe the box’s dimensions or how securely it latches.

Before fastening, compare the screw length with the parts being joined and decide whether the included nut and washers suit the assembly. This is a general assortment, not a job-specific kit with a stated application standard or a detailed count by size. If a project requires a precise fastener specification, verify that the M4 size, length, and material meet that requirement before relying on the assortment.

Questions before you buy

Which screw lengths are included? The listed lengths are 6, 8, 10, 12, 16, 20, and 25 mm. The exact quantity of each length is not specified.

Does the kit include a hex wrench? No. The screws use a hex socket drive, and the wrench is not included.

How are the parts stored? They come in a clear plastic box with 10 labeled compartments. The assortment includes screws, nuts, lock washers, and flat washers.

Should you buy it?

Choose this set when having several M4 screw lengths, matching nuts, and two washer types together is more useful than purchasing one size at a time. It makes most sense for general assembly or repair where you can select the length you need and already have a suitable hex wrench. If the project depends on a specific per-size quantity, a different material, or a documented finish requirement, the information here may not be detailed enough to confirm a match.