$7 Minimum Shipping — USA Addresses See checkout for all options. Insurance automatically added to all USA orders over $50. $13 Minimum Shipping — All Phone Orders Worldwide shipping — see checkout for shipping options.
DU-BRO 4-40 x 1-1/2" Socket Head Cap Screws - Standard Black Oxide RC Hardware 4PK
The DU-BRO Socket Head Cap Screws (Standard) are strong, dependable fasteners designed for a wide variety of RC building needs. Whether you're assembling a new model or replacing older hardware, these screws provide the secure hold and durability your project requires.
Each screw is made from high-quality steel and finished with a black oxide coating. This coating helps prevent rust, gives the screws a clean, professional look, and allows them to thread smoothly into place. The socket (Allen) head design makes installation easy and reduces the chance of stripping, even when tightening in tight or awkward spaces.
These screws are commonly used for:
Mounting engines and motor plates
Installing servos and electronics
Securing landing gear blocks
Attaching control horns and linkages
General workshop, robotics, and custom mechanical projects
Because socket head cap screws can be tightened firmly without slipping, they're a favorite choice among RC hobbyists who want strong and reliable hardware. Their consistent size and clean threading make them easy to work with on glow, gas, and electric models.
Each package includes 4 screws 4-40 x 1-1/2", making it convenient to keep extras on hand for repairs, upgrades, or new builds. With DU-BRO's reputation for precision and quality, you can trust these cap screws to deliver long-lasting performance in any application.
 "DU-BRO 4-40 x 1-1/2\" Socket Head Cap Screws - Standard Black Oxide RC Hardware 4PK")