M4*16 12.9 grade semi-round head internal hexagonal screw

Button Head Hex Socket Screw M4×16, Grade 12.9

Reliable and durable M4×16 button head hex socket screws for hobby builds, DIY projects, RC models, electronics, 3D printing assemblies, and workshop use. Made from high-strength grade 12.9 steel, they are a great choice whenever you need a compact fastener with excellent strength and a clean, low-profile finish.

• Thread size: M4
• Length: 16 mm
• Head type: Button head
• Drive type: Internal hex socket
• Material grade: 12.9 steel
• High-strength fastener for demanding hobby and technical applications
• Ideal for: DIY, model making, robotics, electronics, and custom assemblies

Package includes:

• 50 pcs × M4×16 button head hex socket screws