5/16-18 X 2-1/4" Hex Flange Bolts | Grade 8 Steel Black Phosphate (750 / Pkg.)

Frame Bolts Flange Black Phospohate 5/16-18 x 2 1/4 are sturdy fasteners designed for secure framing projects. Featuring a flange head for a wide bearing surface and a durable Black Phospohate finish, these bolts provide reliable torque retention and a clean, low-profile appearance in your assemblies.

• Thread size: 5/16-18
• Length: 2 1/4 inches
• Head style: Flange
• Finish: Black Phospohate
• Application: Frame mounting and general mechanical fasteners

Choose these frame bolts for dependable strength, corrosion resistance, and a finished look in metal and wooden frame assemblies. Each bolt is designed to meet standard fastener specifications and to perform reliably across a range of framing tasks.