Direct From Factory 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.