M5 Fasteners for Extrusion Builds and Structural Joints
M5 is the go-to size for aluminium extrusion frames, printer enclosures and large printed brackets. This kit covers short and long lengths in both head styles, with the nuts and washers to go with them.
Countersunk Screws
Countersunk hex head screws sit flush in a countersunk hole for a smooth finished surface.
Button Head Screws
Button head socket screws have a low profile rounded head that looks tidy wherever the head sits proud.
Nuts and Washers
Hex nuts for nut traps and through bolts, nyloc nuts for joints that see vibration, and washers to spread the load on printed plastic.
Kit Details
Full Kit Contents
Every item is picked from our regular stock, so you can top up any size from its own product page.
Tool, Nut and Washer Sizes
Hex key
3 mm for both screw types. Available as an individual ball end hex key.
M5 hex nut
7.9 mm across flats, 4 mm thick.
M5 washer
5.5 mm inner diameter, 9.8 mm outer diameter, 1 mm thick.
Frequently Asked Questions
Why use washers on printed parts?
A washer spreads the clamping force over a larger area, which helps stop the screw head or nut from pulling into softer printed plastic.
What are the fasteners made from?
Stainless steel, for good corrosion resistance indoors and out.
Need other sizes?
We also have M2 and M2.5, M3 and M4 fastener kits, plus a Nut and Washer Assortment, in our Starter Kits range.