Overview
The Du-Bro 4-40 x 1-1/4" Bolt Set is an aircraft-quality, high-strength steel bolt set that comes complete with everything you need for a secure, vibration-resistant connection. Each pack includes 4 bolts, 4 flat washers, and 4 nylon insert lock nuts — perfect for engine mounts, motor mounts, landing gear, and other high-load joints on RC airplanes.
Sold as a 4-bolt set.
Key Features
- 4-40 x 1-1/4" aircraft-quality bolts
- High-strength steel
- Includes flat washers and lock nuts
- Complete fastener set
- Wrench Size: 3/32"
Performance Benefits
- Strong, vibration-resistant connection
- Everything needed in one package
- Aircraft-quality construction
Usage Notes
- Ideal for engine mounts, motor mounts, and landing gear
- Use included flat washer between nut and material
Technical Specs
- Thread: 4-40
- Length: 1-1/4"
- Wrench Size: 3/32"
- Quantity: 4 sets per package
What's Included
- (4) 4-40 x 1-1/4" Bolts
- (4) Flat Washers
- (4) Nylon Insert Lock Nuts
Summary
- 4-40 x 1-1/4" aircraft-quality bolt set
- Includes washers and lock nuts
- 4 complete sets
