Dottie D40S Bolt, 1-1/4" Piece Knockout Seal

Keep electrical and security enclosures sealed and secure with the Dottie D40S Bolt three-piece knockout seal. This Dottie knockout seal bolt is designed to cover exposed 1-1/4 in openings quickly, protecting junction boxes and outlet boxes from dust, moisture, and accidental contact — essential for surveillance, monitoring and networking installations. Constructed from carbon steel, the D40S delivers corrosion-resistant strength that stands up to jobsite conditions and long-term service.

Installation is fast and flexible: the included screw threads into the opposite strap and can be installed from inside or outside the box without rearranging wires, reducing labor time and minimizing downtime for sensitive security or IT equipment. The three-piece assembly ensures a tight, tamper-resistant fit in standard 1-1/4 in knockouts and is ideal for camera junction boxes, access control enclosures, and data/voice cabinets. Packaged for trade use (25 per pack), the Dottie D40S is a practical choice for contractors and facility managers who need reliable, code-friendly knockout protection. Order the D40S knockout seal bolt to streamline installs and protect your critical surveillance and networking hardware today.

• Protects exposed knockouts to maintain enclosure integrity and prevent dust, moisture, and tampering
• Three-piece carbon steel design delivers long-lasting durability for security and surveillance enclosures
• Installs from inside or outside without rearranging wires, saving time on installs and service calls
• Includes screw and threaded strap for a secure, reliable fit in 1-1/4 in openings
• Ideal for junction boxes, networking racks, and monitoring equipment enclosures to keep systems operational