Disable HL2 hand item grabbing?

I use SmartSnap a lot, and it really bugs me when I attempt to easy weld or try to snap to grid by holding E and instead end up picking up something with my hands. Is there a keybind or a script that can fix this? Sorry if this is has been done before, but I searched and couldn’t find something similar. Could someone please help me?

Oh, and I don’t want to freeze everything, especially if it may be a complex contraption made out of a million props.