Dubro Sock Head Cap Screw 2-56x1/4 Tool - DUB309

The Dubro 309 sock head cap screw is a 2-56 x 1/4 inch RC fastener designed for use in RC aircraft builds, repairs, and hardware installations. Dubro is a long-established name in RC hardware, and the DUB309 is a standard size used widely across electric and nitro-powered fixed-wing models. The socket head design allows for secure tightening with a hex key, making it well suited to tight or recessed locations on airframes and mechanisms.

Key Features

• 2-56 x 1/4 inch thread specification — a common RC aircraft hardware size used in servo mounts, control horns, and linkage assemblies
• Socket head cap screw design accepts a hex key for reliable torque in confined spaces
• Dubro hardware is a trusted standard in the RC aircraft community for consistent thread quality and dimensional accuracy
• Small, precise fasteners suited to lightweight airframe construction where standard screws may not fit

What's Included

• Dubro 309 sock head cap screws (2-56 x 1/4 inch) — quantity as packaged

What You Need

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