RECO INTERNATIONAL can provide heavy duty plastic thread protectors used for drill collars, drill pipes, etc. during transport and storage.

Thread Type Size Range
IF 2 3/8" - 6 5/8"
REG 2 3/8" - 8 5/8"
FH 3 1/2" - 6 5/8"
NC NC35 - NC61
H-90 4" - 7 5/8"