Secraft 4mm Wide Washer Blue (6 Pack) | RC Airplane Hardware

Secraft Wide Washer 4mm – Blue (6 Pack)

The Secraft 4mm Wide Washer is a premium RC aircraft hardware upgrade designed to improve both performance and appearance. The wide washer design distributes load evenly while adding a clean anodized blue finish to your aircraft.

Machined from aircraft-grade 6061-T6 aluminum and hard anodized for durability, these washers are ideal for high-stress and vibration-prone areas such as engine cowls, landing gear mounts, and canopy installations.

Key Features

• Wide washer design reduces stress on mounting surfaces
• Precision-machined 6061-T6 anodized aluminum
• Helps resist loosening in vibration-heavy environments
• Enhances both durability and visual appearance
• Compatible with M4 / 8-32 hardware

Specifications

• Size: 4mm (M4 / 8-32 compatible)
• Outer Diameter: 15mm
• Inner Diameter: 4.5mm
• Material: 6061-T6 Aluminum (Anodized Blue)
• Quantity: 6 washers per package

Applications

These Secraft wide washers are commonly used in:

• RC airplane engine cowls and fuselage mounting points
• Landing gear installations
• Canopy and hatch mounting
• Motor mounts and structural attachment points
• General RC aircraft hardware upgrades

Why Use Wide Washers in RC Aircraft?

Wide washers increase the contact surface under the bolt head, helping prevent cracking, crushing, or loosening of materials like fiberglass, wood, and composites. This is especially important in RC aircraft where vibration and repeated stress are common.

Upgrade your build with Secraft hardware—engineered for durability, performance, and a clean professional finish.