Sutemribor Sutemribor-Screws M3 x 35mm Socket Head Cap Screws, 12.9 Steel

Some projects call for a specific fastener size and thread, others can use a more general screw. These Sutemribor M3 x 35mm socket head cap screws are a defined-size option for assemblies that need an M3 thread with a 0.5mm pitch.

The pack contains 55 fully threaded screws made from 12.9 grade alloy steel, with a black oxide finish. Their internal hex drive is intended for tightening with a hex wrench.

If you’re assembling a removable panel or a small mechanical component, would a consistent size across the job make selection easier? This set may suit that kind of work, provided the screw length and thread match your assembly.

Highlights

The key buying detail is the specification: M3 x 35mm with a 0.5mm thread pitch. All 55 screws are listed as fully threaded, so the threads extend along the screw rather than leaving an unthreaded section. Check those measurements against the part being fastened and its mating thread before choosing, matching the diameter alone is not enough to establish fit.

The socket head uses an internal hex drive, a format commonly used where a recessed drive is useful for tightening and removal. The screws are black and have a black oxide finish. They’re made from 12.9 grade alloy steel, which is a useful material and grade detail when comparing fasteners for mechanical assembly. The listed applications include machinery, removable panels, instruments, electronics, household appliances, locks, and lighting.

Size & fit

These are M3 screws with a 35mm size and a 0.5mm pitch. The product is described as fully threaded and right-hand threaded. Confirm that the receiving thread is M3 with the same pitch, and that 35mm is appropriate for the parts and assembly depth. A screw that fits the thread may still be the wrong length for a particular joint.

The socket drive is internal hex, so the tool needs to fit the recess. No hex wrench size is specified in the provided product details. If you already have a set of hex tools, match the tool to the screw recess rather than assuming a particular size.

Tips for day-to-day use

For a repair or assembly, sort these screws separately from other small fasteners and keep the M3 x 35mm specification with the parts. That makes it easier to distinguish them from screws that share a similar appearance but differ in pitch or length. The 55-piece count can be useful when a project calls for multiple matching fasteners or when keeping spares on hand.

Use the internal hex drive with a correctly fitting hex wrench, and align the screw with the receiving thread before tightening. This helps avoid treating a mismatched thread as a fit. The product is listed for machinery and removable components, but the details do not specify a load rating or particular environmental conditions, choose based on the requirements of your assembly rather than the finish alone.

Practical questions

What thread size and pitch are these screws? They are M3 x 35mm screws with a 0.5mm pitch and right-hand threads.

What tool do they use? They have an internal hex drive and are intended for a hex wrench. A specific wrench size is not provided.

How many screws are included, and are they fully threaded? The listed quantity is 55, and the screws are described as fully threaded.

When it makes sense

You’ll appreciate it if your project calls for 55 matching M3 x 35mm screws and an internal hex drive, particularly for mechanical assembly or removable panels. Compared with buying a mixed assortment, a set with one stated size and pitch is easier to match to a job that already specifies those measurements. Better avoided if your assembly calls for a different thread, pitch, or length, those details determine fit, regardless of the black finish or alloy-steel grade.