PrecisionGeek® M5 Knurled Screws Steel DIN 653 – Black Oxide – Flat Head Without Shoulder – Various Lengths & Set Sizes (20 mm · Set of 4)

• 1. Thumb Screws Application Knurled thumb screws designed for tool-free fastening in metal, wood, plastic, and acrylic components.
• 2. DIN 653 Standard Manufactured in accordance with DIN 653, featuring a flat knurled head for stable seating and repeatable positioning.
• 3. Black Oxide Steel Construction Made from steel with a black oxide finish, providing durability and a technical, non-reflective surface.
• 4. Multiple Sizes & Set Options Available in various M5 thread lengths and different set sizes, allowing selection of the appropriate configuration for each application.
• 5. European Manufacturing Manufactured in the European Union (Poland).

PrecisionGeek knurled thumb screws manufactured according to DIN 653 are high-quality steel fasteners with a flat knurled head, designed for reliable and repeatable tool-free fastening. The M5 thread size combined with the DIN 653 head design allows direct, flush seating without a shoulder, making these screws suitable for compact assemblies. The screws are made from steel with a black oxide finish, offering a durable surface and a technical, non-reflective appearance suitable for mechanical, electronic, and industrial applications. The knurled head allows secure hand tightening without the need for tools. These thumb screws are suitable for use in metal and wood assemblies, mechanical engineering, electronic enclosures, fixtures, jigs, and DIY projects. This product family is available in multiple M5 thread lengths and different set sizes, allowing users to choose the most appropriate configuration for their specific requirements.