Self tapping: will create their own thread into the wood. 16mm long (5/8in): enough to go through the sleepers and thick underlay.
Golden Valley Hobbies GVSCREWS10 Track Screws 10mm Long (x100)
Flexi Track Tool OO Gauge - Pack of 2 - Golden Valley Hobbies GVFTOO
Flexi Track Tool N Gauge -Pack of 2 - Golden Valley Hobbies GVFTN
Golden Valley Hobbies GVSCN10 Track Screws Peco And More 10mm (Pk100) N Gauge
Golden Valley Hobbies GVTESTER Multi Gauge Track Tester For OO, HO, TT, N GAUGE
Track screws 6mm long (x100) Golden Valley Hobbies GVSCREWS6