McMaster 2310A1 Rigid-Arm Magnetic-Base Indicator Holder Lug and Stem Mount, with Magnetic-Release Switch

Securely mount indicators to metal surfaces with the magnetic base on these holders. They have a switch that releases the magnet for easy setups. Holders with a V-grooved base can be mounted on flat or curved metal surfaces. Mount Type Lug, Stem Number of Arms 1 For Mounting Lug Hole Diameter 1/4" For Mounting Stem Diameter 5/32"-1/4" Base Mount Type Magnetic Type V-Grooved Length 2.559" Width 1.97" Height 2.165" Thread Size M8 Thread Pitch 1.25 mm Material Cast Iron Magnetic Pull 176 lbs. Upright Post Diameter 7/16" Height 6 7/8" Material Steel Arm Length 6 1/2" Diameter 0.375" Flexibility Rigid Features Magnetic-Release Switch RoHS RoHS 3 (2015/863/EU) Compliant REACH REACH (EC 1907/2006) (01/17/2023, 233 SVHC) Compliant DFARS Specialty Metals COTS-Exempt Country of Origin Peoples Republic of China Schedule B 850590.4000 ECCN EAR99