Koswork 4x12mm Button Head Hex Hardened Steel RC Screw - KOSBS412

The Koswork KOSBS412 4x12mm button head hex hardened steel screws are M4 hardware fasteners designed for use in RC cars and buggies where a low-profile screw head is needed. Each screw measures 4mm in diameter and 12mm in length, and the button head profile sits flush and neat against body panels, shock towers, and chassis components. The hardened steel construction gives these RC fasteners greater resistance to stripping and shearing compared to standard mild steel screws, making them a practical choice for competition and bashing builds alike.

Key Features

• M4 x 12mm button head hex drive profile for a low-profile, snag-free finish on chassis and body components
• Hardened steel construction resists stripping, shearing, and thread wear under race and bashing loads
• Hex socket drive (Allen key) for secure torque application without cam-out
• Supplied in a reusable storage container, keeping screws organised in your pit box
• Pack of 8 screws — enough to cover a single assembly job or replenish your hardware supply

What's Included

• 8 x Koswork 4x12mm button head hex hardened steel screws
• 1 x reusable storage container

What You Need

• Appropriate hex (Allen) key or hex driver sized for M4 button head screws
• Thread-locking compound if required for your specific application