Dottie MB516312 Bolt, 5/16"-18 3-1/2" Hex Head Tap Bolt

Secure long-length assemblies quickly and reliably with the Dottie MB516312 Hex Head Tap Bolt. Designed for contractors and facilities teams installing security, surveillance and networking equipment, this 5/16-18, 3-1/2 in tap bolt delivers consistent engagement whether threaded into an internally tapped hole or used with a nut. The hex head design offers fast, tool-friendly installation and precise adjustment when paired with jam nuts—ideal for mounting camera housings, rack equipment, junction boxes and monitoring enclosures.

Manufactured to the IFI-199 standard and made from low carbon steel, the MB516312 provides dependable fit, repeatability and the strength needed for everyday deployment in security and IT environments. With 18 threads per inch and a 3-1/2 in length, it accommodates through-bolting and deep assemblies without compromising holding power. Packaged in a convenient 50-count, this bolt reduces reordering frequency and supports efficient on-site stocking.

Specify the Dottie 5/16-18 Hex Head Tap Bolt for your next surveillance, monitoring or network installation—order a 50-pack to keep projects moving.

• Provides dependable long‑length fastening for assemblies used in security and surveillance enclosures
• Compatibility with tapped holes or nuts lets you secure racks, junction boxes, and network cabinets quickly
• Engineered to IFI-199 standard for consistent fit and interchangeability across installations
• Low carbon steel construction balances strength with easy installation and reliable performance
• Supplied in a 50‑pack to streamline procurement and reduce downtime on large projects