Also suitable for Hornby TT. If you have 2mm of cork or underlay you might prefer the 8mm screws.
Peco Nickel Silver 00 Gauge Track ST-201 Double Straight x 10 Hornby R601 equiv
Hornby R601 X 5 Nickel & Silver Oo Gauge Track Model Railway
Hornby Nickel Silver OO Gauge Track Quarter Straight R610 X 10