Overview
The Du-Bro 4-40 x 3/4" Socket Head Cap Screws are precision-machined fasteners ideal for engine mounts, servo trays, landing gear, and structural components on RC airplanes, helicopters, and surface vehicles. The internal hex socket allows high installation torque without cam-out, while the cylindrical head provides a clean, professional finished look.
Each screw features a black-oxide finish for corrosion resistance. Sold as a convenient 4-pack.
Key Features
- 4-40 thread, 3/4" length
- Internal hex socket drive
- Black-oxide plated finish
- 4 screws per package
- Trusted Du-Bro quality
Performance Benefits
- Strong, secure fastening
- Hex drive resists stripping
- Black-oxide finish resists corrosion
- Clean, professional appearance
Usage Notes
- Ideal for engine mounts, servo trays, landing gear
- Use a 3/32" hex driver for installation
- Apply thread locker for high-vibration applications
Technical Specs
- Thread Size: 4-40
- Length: 3/4"
- Drive: Internal hex socket
- Finish: Black oxide
- Quantity: 4 per package
What's Included
- (4) Du-Bro 4-40 x 3/4" Socket Head Cap Screws
Summary
- 4-40 x 3/4" socket head cap screws
- Black-oxide plated finish
- Ideal for RC mounting hardware
- 4 per package
