To all, I am trying to mount a Leopold Delta Point Pro to a quick detach mount to go on the front mount on a CZ550 458 Lott. Leopold screws are simply not long enough to secure through recoil. The screw is a cap head Torx M4. Can anyone on here help me. Thanks, and if you can PM me as i get forgetful on checking.

I believe the thread size is M4 x 0.7 mm.

Pick your length.

https://belmetric.com/flat-soc...-7-coarse-din-7991/?

https://www.mcmaster.com/91294A194/

Dimensions would be needed to narrow things down.

What dimensions ?

Head diameter and depth and total length.

If by cap he means socket.

Knowing who made the mount would be really helpful. Vortex Defender came with 4 or 5 ziplock bags of screws. Same two worked for the Ruger base from AMHR and Freedom Arms.

It is the M4 thread and the need to be 7/8" long with a socket or cap head. Current ones i have are Torx. Reason they need to be 7/8 long is because recoil stripped the very top threads and if I had longer screws I get to good threads. Other option i have is just to buy another base. Thanks for responses and if someone has some available i would appreciate it. All gunsmiths in immediate area do not have them that long and i dont want to buy cheap china amazon stuff.

And sorry, I dont remember the mfg. of the mount but it has a QD lever. The one on Leopolds website does not.

Evolution Gun Works made the mount.

Check with EGW?