These are 6x1" Button Head Sheet Metal Screws by Du-Bro. This uses a 5/64" size allen wrench

Features:

• Zinc plated metal construction with clear chromate.
• Non-slip socket drive insert.
• The large head of the screw acts as a washer.
• A new design that's great for mounting servos, cowls, landing gear, etc.

Includes:

(8) Screws

Technical Specifications:

Length: 1"
Diameter: 6mm