Dubro Sock Head Cap Screw 4-40x1/2 Tool - DUB314

The Dubro DUB314 socket head cap screw is a 4-40 x 1/2 inch RC fastener designed for use in RC aircraft assembly and hardware replacement. Socket head cap screws like this one are a standard fitting across a wide range of RC models, offering a clean hex-socket drive that gives you better torque and less risk of cam-out compared to slotted or Phillips heads. If you're building, repairing, or maintaining a fixed-wing aircraft or other RC model, having the right hardware on hand keeps the job moving.

Key Features

• 4-40 thread size with 1/2 inch length — a common standard in RC aircraft hardware
• Socket head (hex key) drive for improved torque and reduced fastener damage during tightening
• Suitable for securing servo mounts, linkage hardware, and other light structural components
• Dubro hardware is a long-established name in RC fasteners, known for consistent thread quality

What's Included

• Dubro DUB314 4-40 x 1/2 socket head cap screws (quantity as packaged)

What You Need

• Appropriate hex key or Allen wrench to drive the socket head fitting