LK 1/4-28 UNF-BT NOGO PLUG HRPG GAGE
Hardness is set above the standardized minimum value for longer life
HRPG Checks for distortions in the Self-Lock profile ramp angles, when threads are made by milling process.
No-go plug gage for gaging internal threads
Plug Gage designed specifically to measure the ramp angle on Self-Lock thread forms typically applied via thread milling
