Guide lines on the procedure for mounting a C.E.G.B. eyebolt / tapped hole thread : trapped hole thread : indentification exercise.
Great Britain.Central Electricity Generating Board.
Great Britain.Central Electricity Generating Board.Engineering Services.
Great Britain.Central Electricity Generating Board.Standards Section.
London : Central Electricity Generating Board,
1979.
"(CEGB 098/29)"