Dottie D90S Bolt, 3-1/2" Piece Knockout Seal

Protect equipment and maintain tidy, code-compliant enclosures with the Dottie D90S Bolt 3-1/2in Piece Knockout Seal. Designed for fast sealing of exposed knockout holes, this Dottie knockout seal bolt minimizes dust, moisture and unauthorized access—critical for electrical, security and surveillance installations. The three-piece design secures with a screw into a threaded strap, allowing installation from inside or outside the box without rearranging wiring, saving technician time on-site.

Constructed from carbon steel for durable, long-term performance, the D90S fits standard 3-1/2in openings and is supplied in packs of 10 for efficient deployment across multiple outlet boxes or metal enclosures. Use it in security cabinet builds, CCTV and monitoring system installations, or general electrical and network enclosures where a robust, tamper-resistant closure is required. The Dottie D90S helps maintain signal integrity and physical protection for cables and connections while simplifying maintenance.

Add the Dottie D90S knockout seal bolt to your next project to keep enclosures secure and organized—ideal for electricians, security integrators and network installers. Order now to standardize your enclosure protection.

• Quickly seal exposed knockout holes to maintain enclosure integrity and protect internal wiring
• Three-piece design with screw and threaded strap lets you install from inside or outside without rearranging cables
• Durable carbon steel construction resists wear in industrial and security environments
• 3-1/2in size fits standard openings for fast, reliable coverage of outlet boxes and metal enclosures
• Packaged in convenient quantities (10 per pack) to streamline installation on multiple enclosures