Hubbell SHC1040, Kellems Wire Management, Cord Connectors, Straight Male, 0.50-0.63", 1",Aluminum; Application: Straight Male- Form 4; Standard: UL 514B; Color: Metallic; Mounting: Locknut or Tapped Opening; Material: Aluminum. NPT hub sizes from ¼" to 3" in straight male end, 90°, 45°, female and underground feed connectors. They are available in your choice of aluminum, plated steel, nylon and stainless steel. The patented GOTHCA ring incorporates a split hinge design to prevent friction and provide strain relief, also color-coded for sizing identification. Lubricated neoprene bushing compresses easily for a liquid tight seal and added pull-out protection.