Sutemribor M3 Screw Assortment Kit

For small machine builds or a repair involving a removable panel, having several screw lengths and matching hardware in one place can save a pause to hunt for a specific fastener. The Sutemribor M3 assortment brings those parts together in a labeled box.

It includes button-head socket cap screws in seven lengths, from 6 mm to 25 mm, plus matching nuts and washers. The screws are fully threaded.

One practical detail: the recessed hex drive needs a hex wrench, and the wrench is not included. That matters if you’re putting together a kit for a job rather than adding to an existing toolbox.

Key specifications

The set contains 555 pieces made from 10.9-grade alloy steel. The screws have a black finish, a rounded button head, and a recessed hex socket. The assortment covers M3 x 6, 8, 10, 12, 16, 20, and 25 mm lengths, with nuts, lock washers, and flat washers included.

The range is useful when a project calls for different screw lengths but the same M3 format. For example, you could sort out the parts for a removable equipment panel, then choose a length to suit the assembly rather than buying only one length. The listing does not give the quantity of each individual size, so there’s no way to plan around a specific count per length.

Who it’s for

This kit makes the most sense for someone assembling or maintaining machinery, small instruments, electronics, or household items that use M3 fasteners. The included nuts and two washer types give you more than screws alone, which is handy when a build needs a complete fastening set.

A solid pick if you already use M3 hardware and want multiple lengths stored together. Not the best choice if you need a different thread size, a specific screw count for each length, or a hex wrench in the box. The product details don’t establish compatibility with any particular device, so match the fasteners to your project before relying on them.

Included in the package

The 555 pieces come in a clear plastic box divided into ten compartments. The sizes are marked with labels, making it easier to keep lengths separate after opening the kit. It includes the screws, matching nuts, lock washers, and flat washers, a hex wrench is not listed as part of the package.

Before you decide

Are the screws fully threaded? Yes. The product description identifies them as fully threaded button-head socket cap screws.

What tool do the recessed heads use? They are intended for a hex wrench. The wrench is not included, so you’ll need to supply one separately.

Does the listing specify how many screws come in each length? No. It gives the total piece count and the available lengths, but not a per-size breakdown.

When it makes sense

Choose this assortment when your work uses M3 fasteners across several lengths and you value having screws, nuts, and washers sorted in one case. It’s a more organized approach than buying a single length at a time, especially for occasional repairs or small assembly jobs. If your project requires exact quantities, a different thread size, or a tool included with the fasteners, this set doesn’t cover those needs based on the listed details.