Glass standoff with round face plate Recommended Screw Size: M8 bolt Longer base 80~180 mm (3-5/32″~7-3/32″) as special orderWARNING: This product can expose you to cadmium, lead, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, go to www.P65WARNINGs.ca.gov.