Dubro Sock Head Cap Screw 4-40x3/4 Tool - DUB572

The Dubro 572 Sock Head Cap Screw is a 4-40 x 3/4 inch socket head fastener designed for use in RC aircraft builds and repairs. Dubro is a well-regarded name in RC hardware, and these cap screws are a practical addition to any builder's toolkit where a clean, recessed hex-drive fixing is needed. The 4-40 thread size is widely used across RC aircraft frames, motor mounts, control horns, and linkage assemblies.

Key Features

• 4-40 x 3/4 inch socket head cap screw — a common thread size used throughout RC aircraft construction
• Socket head design accepts a hex key for secure tightening in tight or recessed locations
• Suitable for use in balsa, plywood, and plastic airframe assemblies where a neat fixing is required
• Dubro part number DUB572 for straightforward reordering

What's Included

• Dubro 572 socket head cap screws (4-40 x 3/4 inch) — quantity as packaged

What You Need

• Appropriate hex key or Allen wrench to fit the socket head drive
• 4-40 nut or threaded insert depending on the application