iFlight 150pcs M2 Button Head Hex Socket Cap Screws 10.9 Alloy Steel for Brushless Motors FPV Review (2026)

What it is and who it's for

This iFlight pack contains 150 M2 button head hex socket screws made from 10.9 grade alloy steel, split across three common lengths used for mounting small brushless motors on micro and toothpick class FPV quads. It is aimed at builders working with 11xx sized motors and similar small brushless motors that use the M2 thread, where having a stock of the right screw length on hand avoids a frustrating mid build trip to source a single missing size. Hobbyists who build or repair several micro quads, or who run a workshop stocking spare hardware, get the most value from a pack this size, since 150 screws will last through many builds before running low.

Design and materials

The screws are made from 10.9 grade alloy steel, a tensile strength rating that gives good resistance to stretching or snapping under the clamping load of a spinning motor, which matters since motor screws see repeated vibration and shock during flight. They use a button head hex socket design, which sits with a low rounded profile compared with a flat or pan head screw, helping the screw head clear tight spaces near the prop arc and frame arm edges on small motor mounts. The pack is organized across three lengths, each in its own quantity, so builders get a useful spread of common M2 sizes rather than 150 of a single length that may not match every motor stack height.

Performance in the air

Screw choice does not directly change how a quad flies, but a poor quality or undersized screw can fail under the repeated vibration and shock loading a motor experiences during hard flying, which can lead to a motor working loose mid flight. The 10.9 alloy steel rating on these screws gives a meaningful safety margin over lower grade hardware sometimes bundled with cheaper motors, reducing the chance of a stripped hex socket or a snapped screw head during routine maintenance or after a crash. For builders prioritizing reliability on a micro quad, using a known grade of screw like this rather than unlabeled hardware is a small but sensible upgrade.

Fit and compatibility

The M2 thread size on these screws matches the mounting holes on most micro and toothpick class brushless motors, commonly in the 11xx stator size range, rather than the larger M3 screws used on typical 2205 to 2306 motors found on 5 inch freestyle and racing quads. Builders working on a 5 inch or larger quad should look for M3 hardware instead, since M2 screws will be undersized for those larger motor mounting holes. The button head hex socket shape is compatible with standard small hex drivers commonly included in FPV building tool kits, so no special tools are needed beyond a correctly sized hex key.

Value and what to watch for

At 150 pieces split across three lengths, this pack offers a good supply of small motor hardware for the price, especially useful for builders who maintain several micro quads or who want backup screws on hand after a crash strips a socket. The main thing to watch for is scope, since M2 only covers smaller motors, so pilots building larger 5 inch freestyle or racing quads will need a separate M3 screw pack and should not expect this listing to cover those builds. For its intended micro and toothpick class use case, the alloy steel grade and button head design make this a solid, no frills hardware purchase.

Frequently asked questions