5/16"-18 X 2-1/2" Machine Screws | Flat Head | Slotted Drive | Silicon Bronze (25/Pkg.)

Enhance assemblies with the reliability of the Machine Screws Slotted Flat Silicon Bronze 5/16-18 x 2-1/2. Designed for non-magnetic, corrosion-resistant fastening, these screws are ideal for outdoor, marine, electrical, and woodworking projects where a durable, decorative hardware solution is required.

Key Features

• Type: Machine screws with slotted drive and flat head
• Material: Silicon bronze for excellent corrosion resistance and conductivity
• Size: 5/16-18 thread, 2-1/2 inches long
• Finish: Bare silicon bronze (unplated)
• Drive: Slotted for common hand and machine screw applications

Specifications

• Diameter: 5/16 in
• Thread pitch: 18 threads per inch (5/16-18)
• Length: 2-1/2 in
• Head type: Flat head
• Drive type: Slotted
• Material: Silicon bronze

Why Silicon Bronze?

Silicon bronze offers superior corrosion resistance in marine and outdoor environments, non-magnetic properties for sensitive electronic or magnetic applications, and attractive appearance for visible hardware. This makes these screws a versatile choice for projects where reliability, longevity, and aesthetics matter.

Applications

• Marine hardware and boat fittings
• Wood-to-metal or metal-to-metal assemblies in outdoor settings
• Electrical and electronics housings where non-magnetic fasteners are desired
• Decorative hardware on furniture, cabinetry, and architectural projects

Note: For best results, pair with matching silicon bronze nuts or washers and pre-drill pilot holes appropriate for the material you are joining. Suitable for moderate torque applications; not recommended for high-torque structural uses.