TP028 TP014 - TP015 TP017 DESIGN REGISTRATION Ø (mm) Thread 57 M52x4 TP014A — TP014G TP014R — 42 M37x4 TP015A TP015B TP015G — — 37 M34x4 TP017A TP017B TP017G TP017R — 57 M52x4 TP028A TP028B — — TP028U 124