M4 Size - 4mm Thread. Available in sizes from 30mm to 60mm. Rotation stated is when viewed from the stern of the boat. Lake Reaper Bait Boat Flush Push Switch LED Upgrade / Modification. We keep a large range of batteries, not just for RC models such as LIPO & NIMH's but batteries for bait boats, ride on toy cars, alarms and motorbikes.
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