PrecisionGeek® M4 Knurled Thumb Screws Stainless Steel AISI 303 – CNC Machined Fasteners for Metal, Wood, Acrylic & Electronics – Hand Tightening (Shoulder – 10 mm – 5 pcs)

• M4
• 📏 Multiple configurations for different use cases – Available in M4 × 10 mm and M4 × 15 mm, with flat head and shoulder variants, in sets of 5 or 10 pieces.
• 🔩 Knurled head for precise grip and control – Ensures comfortable hand tightening without tools. Ideal for fine adjustments and repeated assembly.
• ✋ Tool-free operation for fast adjustments – Easily install, remove or reposition components by hand. Perfect for maintenance and modular systems.
• 🧩 Optimised for electronics & precision work – Ideal for PC builds, enclosures, 3D printers, robotics and small mechanical assemblies.
• 💪 Corrosion-resistant AISI 303 stainless steel – Provides long-lasting performance, strength and resistance to rust in indoor and light outdoor environments.
• 🌍 PrecisionGeek – CNC-machined in the EU – Manufactured on CNC machines in the European Union for high precision, smooth finish and consistent quality.
• 📦 Flexible set options for every need – Available in different lengths, head types and pack sizes, suitable for DIY users and professional applications.

M4x10mm stainless steel thread round head knurled screw silver turn knurled head screw with style. Knurled head for better grip for manual tightening. They are usually found on screws, a knurled surface on the head gives a better grip surface, making it easier to tighten or loosen fasteners manually. Thumbscrews are designed to be tightened and loosened by hand. Tools not needed for tightening or loosening thumbscrews are installed with your fingers and are used to hold a slight cover in place and other ornamental products.