M5x25 Torx 20 screws (set of 4 pcs) for the Picatinny side clamp on all SP-***2/SP-***2C/SP-***3B/SP-***4/SP-***6/SP-***8 mounts and SR-***6 rings. The 10.9 Grade steel screws are zinc-nickel treated (for corrosion protection) and are pre-coated with Gleitmo 627 dry lubricant film to ensure proper torque values.
