In the distant past, I tried Kadee’s 2-56 Delrin screws to mount couplers. Many of the heads snapped off in normal use and I quit using them. Slot or Phillips head - same results
The 2-56 screws Kadee is now supplying with #178 (and other?) couplers have a slightly wider and flatter appearing head. Have any of you tried them? If so, how have they worked out?