Koswork 2.5x4mm Button Head Hex Hardened Steel RC Screw - KOSBS2504

The Koswork KOSBS2504 is a set of M2.5 x 4mm button head hex hardened steel screws designed for use in RC car builds, repairs, and maintenance. These small-format fasteners are a common size across many 1/10 and 1/8 scale RC vehicles, making them a practical stock item for any pit box. The button head profile sits low and flat once installed, which suits tight clearance areas on chassis and body mounts.

Key Features

• M2.5 x 4mm sizing — a widely used thread and length combination across RC car platforms
• Hardened steel construction for improved resistance to stripping and wear compared to standard steel screws
• Button head hex drive requires a 1.5mm hex driver for installation
• Low-profile button head design suits recessed or flush-mount applications
• Comes in a resealable container, keeping the eight included screws organised in the parts box

What's Included

• 8 x M2.5 x 4mm button head hex hardened steel screws
• Storage container

What You Need

• 1.5mm hex driver or Allen key for installation