PrecisionGeek® M4 Knurled Thumb Screws Brass – CNC Machined Fasteners for Metal, Wood, Acrylic & Electronics – Hand Tightening (Flat – 10 mm – 10 pcs)

• 🔧 Premium M4 brass thumb screws for precision fastening – Designed for tool-free operation in mechanical, electronic and decorative applications where both functionality and appearance matter.
• 📏 Multiple lengths & pack sizes available – Includes variants such as M4 × 10 mm and M4 × 15 mm in sets of 5 or 10 pieces to suit different installation needs.
• 🔩 Flat knurled head for secure grip – Provides comfortable and precise hand tightening without tools. Ideal for quick adjustments and repeated use.
• ✋ Tool-free operation for fast assembly – Easily install, remove or reposition components by hand. Perfect for maintenance and modular setups.
• 🧩 Wide range of applications – Suitable for metal, wood, acrylic, electronics, enclosures, 3D printers, robotics, prototyping and DIY projects.
• 💪 Solid brass (Mo58) construction – Corrosion-resistant, durable and visually premium. Ideal for both technical and decorative applications.
• 🌍 PrecisionGeek – CNC-machined in the EU – Manufactured on CNC machines in the European Union for high precision, consistent tolerances and excellent finish.
• 📦 Flexible configurations for every use case – Available in multiple combinations of length and quantity, suitable for workshops, makers and professional use.

Knurled head provides extra finger grip for manual tightening. Thumb screws are designed to be tightened and loosened by hand. Tools are not required for tightening or loosening. Set of 5 screws