McMaster 3133T13 Strut Channel Square Washer, for 1 2" Diameter Rod, Zinc Plated Steel CPOM2DDN 000 vpm Number of Speed 000 vpm Number of Speed Settings 1 Series KAW Concrete Vibrator Type Internal Concrete Head Material Steel Shaft Connection Type Quick Connect Horsepower 2 1 2 hp Package Quantity 1 01 Hz Weight 200 g NIST Certification By Manufacturer Not Certified Minimum Operating Temperature 32 Degrees F Maximum AC Voltage Measurement 600 V Computer Interface Connection Type None Maximum Frequency Measurement 50 kHz Basic AC Voltage Accuracy 1 protecting mounting surfaces and preventing damage to the channel 3 1 4" For Channel Width 1 5 8" For Strut Channel Type Standard