Various heights and thread sizes are available—we specialize in insulators from 3/4" to 3” tall. All insulators are hi-pot tested at 3,000 volts and inspected for cracks, short spots, and defects of any kind.
Aluminum inserts are standard; brass or steel inserts are available upon request. Please see individual product listings for full specifications.
Custom sizes and shapes are also available to meet your exact specifications—contact us for more information.
Request a quote on standard or custom electrical insulators, or contact Cal Fasteners to learn more.