1/2 bolt isolators fits 5/8 bolt holes on 150# flanges & valves from 1/4" to 1-1/2"
Imperial Sizes offered are 1/2, 5/8, 3/4 & 1 inch
White
Overall Length - 1-1/16" (27mm)
Washer ID - 9/16" (14.3mm)
Washer OD - 1-3/32 (27.8mm)
Washer Thickness on every size is 1/8" (3.175mm)
Wall Thickness on every size is 1/32" (.8m)