4-40 x 1/2 Stainless Steel Socket Head Cap Screws (4/pkg)

The DU-BRO Stainless Steel Socket Head Cap Screws are strong, rust-resistant fasteners perfect for RC builders who want hardware they can count on. Made from high-quality stainless steel, these screws are built to withstand fuel, moisture, vibration, and everyday wear—making them ideal for glow, gas, and electric models.

Because they use a socket (Allen) head, these screws are much easier to tighten than Phillips screws. The tool fits securely into the screw head, which helps prevent slipping, stripping, or damage. This makes installation simple, even in tight areas like engine mounts or servo bays.

These stainless steel screws are great for:

• Mounting engines and motors

• Installing servos and electronic trays

• Reinforcing landing gear blocks

• Attaching control horns and linkage parts

• RC cars, boats, drones, and robotics projects

• General workshop or mechanical use

The stainless steel finish keeps the screws looking clean and protects them from corrosion, making them perfect for outdoor and high-stress environments.

Each package includes 4 screws, giving you reliable hardware for repairs, upgrades, or new builds. With DU-BRO’s reputation for precision and strength, you can trust these cap screws to deliver long-lasting performance on any project.

If you need durable, easy-to-install hardware that won’t rust, the DU-BRO Stainless Steel Socket Head Cap Screws are an excellent choice.