Dottie 5MB516312 Screw, 5/16"-18 3-1/2" Grade Hex Head Cap Screw

Secure, dependable fastening for security and surveillance projects. The Dottie 5MB516312 Grade 5 hex head cap screw is engineered to provide controlled clamp force and high-load capacity for mounting cameras, access control hardware, racks and network enclosures. Built from medium carbon steel with a zinc-plated finish, this 5/16"-18 x 3.5" screw resists corrosion and maintains torque retention in long-term monitoring and networking deployments. Use it in internally tapped holes or with a nut—always paired with a hardened washer under the turned component for optimal performance. Supplied in 50-piece packs and manufactured to SAE J429 and ASME B18.2.1 standards, these screws deliver consistent sizing and strength across large installations to simplify procurement for low-voltage, IT and physical security teams. RoHS compliant and aligned with California Proposition 65 requirements, they’re ideal for CCTV, surveillance, access control and cabinet mounting. Add Dottie Grade 5 hex head cap screws to your next installation to ensure secure, durable connections—order now to stock up for your next project.

• Delivers consistent medium-strength clamp force for secure mounting of cameras, enclosures and racks
• Zinc-plated finish resists corrosion for long-term security and monitoring installations
• Grade 5 carbon steel construction provides reliable high-load performance
• Precision 5/16"-18 threads and 3.5" length work with tapped holes or nuts for flexible mounting
• Supplied in 50-piece packs and manufactured to SAE J429 / ASME B18.2.1 for repeatable results