So hey guys.. my first post here but I've been reading for some time.. Anyway, I was flying the other day and 3 of 4 of my mounting screws that hold the motor to the firewall somehow vibrated themselves loose in flight.. anyhow, my local home depot doesn't carry a screw that will fit, any suggestions? I live in Chicagoland and my work schedule doesn't let me make it to the hobby shop.. is it just a standard dubro screw or is it some Sig special? Thanks all,

Sachin