Low Profile Screws for the Adaptive Wedges When using the Redding Auto Primer for the T-7 Press the brass thumb screws on the wedges stick out too far. These low-profile screws are drop-in replacements for the brass knobs. Allowing you to use retain all the great features of the Wedge System while priming on the press. Kit includes: 3 - Replacement Screws 1 - 4mm Allen Key These are for the M8 threaded wedges, not the 1/4-20.