Dottie MB121 Bolt, 1/2"-13 1" Hex Head Tap Bolt

When downtime is not an option, rely on the Dottie MB121 1/2"-13 x 1" Hex Head Tap Bolt to deliver consistent, professional-grade fastening for security, surveillance and low-voltage systems. This hex head tap bolt is engineered to secure camera mounts, rack components and enclosures into internally tapped holes or, when used with a nut, to pull assemblies together over long runs. Manufactured to the IFI-199 standard from low carbon steel and finished with zinc plating, it resists corrosion in indoor and protected outdoor environments — reducing maintenance on monitoring and networking hardware.

With a 1/2"-13 thread profile and a 1" length, the MB121 provides predictable engagement and works with jam nuts for fine adjustment and locking in place. Supplied in a pack of 50 for project-ready inventory, this bolt helps installers and service teams complete jobs faster with fewer callbacks. Ideal for IT racks, surveillance camera mounts, access control panels and other physical security applications. Order the Dottie MB121 today to standardize your fasteners and improve installation reliability.

• Securely fastens equipment into tapped holes or with a nut for reliable assemblies
• Zinc-plated, corrosion-resistant finish extends service life in security and surveillance installs
• 1/2"-13 thread and 1" length provide consistent fit for standard mounting and low-voltage hardware
• IFI-199 manufactured for dimensional interchangeability and professional-grade consistency
• Pack of 50 ensures you have the fasteners needed for multi-point installations and maintenance