Hot Picks 1/4″-20 X 3-1/2″ Machine Screws Round Head Combination Drive Steel Zinc Plated (100/Pkg.)

Machine Screws – Round Head, Steel, Zinc-Plated (1/4-20 x 3-1/2 in). These durable fasteners are designed for secure metal-to-metal assemblies and a wide range of DIY projects.

Featuring a round head for a clean, low-profile finish and a zinc-plated coating for corrosion resistance, these machine screws excel in machinery, enclosures, cabinets, and other metalwork where dependable fastening matters.

Round head design provides a smooth profile and easy drive access.

Steel construction delivers high strength and long-lasting performance.

Zinc-plated finish offers corrosion resistance in indoor and covered outdoor environments.

Size and thread 1/4-20 coarse thread (UNC) for reliable engagement with common metal substrates.

Length 3-1/2 inches to suit thicker parts and deeper assemblies.

Specifications

Size: 1/4-20 x 3-1/2 in

Material: Steel

Finish: Zinc-plated

Head type: Round

Thread type: Coarse (1/4-20 UNC)

Perfect for professional repair, maintenance, and new-build projects, these machine screws combine strength, durability, and easy installation for reliable results every time.