Dottie LAG516212 Screw, 5/16" 2-1/2" Hex Head Lag Screw

When reliability matters on commercial jobs, the Dottie LAG516212 lag screw delivers heavy-duty holding power for mounting structural lumber, security hardware and surveillance equipment. This Dottie lag screw (5/16" diameter, 2.5" length) is engineered for contractors and low-voltage/IT integrators who need a robust fastener that performs in both wood and masonry. Manufactured from carbon steel with a hex head and 9 TPI thread, it provides strong bite and fast installation with standard sockets or impact drivers. Use with lag shields for secure anchoring into concrete, brick or mortar — ideal for mounting camera brackets, junction boxes, conduit supports and equipment racks. The large-diameter shank resists shear and pull-out under strenuous loads, and pre-drilling a pilot hole helps prevent splitting in treated lumber. Meets industry expectations for consistency and durability, making it a dependable choice for security, surveillance and monitoring installations. Order the Dottie 5/16 x 2-1/2 hex lag screws to streamline your next mounting project and ensure long-lasting, code-ready attachments.

• Securely anchors heavy lumber, camera mounts and equipment for security, surveillance and low-voltage installations
• Designed for masonry use with lag shields to fasten into concrete, brick and mortar
• Hex head and 9 TPI thread for quicker installation with standard sockets and impact drivers
• Durable carbon steel construction provides high shear strength for strenuous loads
• 2.5" length and 5/16" diameter deliver deep bite and reliable pull-out resistance
• Bulk 100-pack reduces downtime on commercial jobs and site deployments