This solder-on UHF plug fits RG-8U and RG-213 coaxial cables, which have an outside diameter of 0.405" (approximately 3/8").
With UG175U or UG176U reducing adapters this PL-259 UHF male plug can also be fitted to RG-8X, RG-58 types, and RG-59U coaxial cables.
"Warning - this product contains chemicals, including Lead [B], known to the State of California to cause cancer or other reproductive harm - For more info go to www.P65Warnings.ca.gov"
www.P65Warnings.ca.gov