We've tooled up our own custom M5 screws specifically made for mounting ski bindings to swap plates or inserts. The head is flat underneath and fits like a button head screw. The underside of the head has locking serrations to help ensure that the screw doesn't back out over time. High quality stainless steel. For use with a Torx-20 screwdriver. Low head screw lengths are measured thread length only (the length of thread to the bottom of the head).
It is very important to maximize the number of threads engaged in an insert or a swap plate, so be sure to measure carefully. Inserts can accommodate from 3mm min to 6mm max of thread engagement. We like to target 4mm of thread engagement. Do not exceed the min/max numbers for any reason - you will not get a secure mount. These screws fit exactly like allen button heads in terms of length.
After several years of manually grinding screw heads, we have now transitioned to utilizing custom-machined screws. This shift ensures enhanced precision in the tolerances of our ground screws and a superior finish.