Knurled Slotted Thumb Screw | CNC Custom Hand Tightening Screw

Knurled Slotted Thumb Screw

1. Product Introduction

Our knurled slotted thumb screws are integrally precision turned from high-quality carbon steel by CNC lathes. The knurled outer surface of the head greatly increases hand friction, allowing manual tightening and removal without any tools. A standard straight slot on the head supports auxiliary locking with a screwdriver, providing two operation modes for both convenience and firm connection.

The precise burr-free threads ensure tight fitting and anti-slipping performance. With black oxide surface treatment, the screw features excellent rust resistance, wear resistance and oxidation resistance for long-term equipment assembly.

2. Customization Service

Full non-standard customization is available. We can adjust the head diameter, head thickness, screw length, thread pitch and other dimensions as required. Products can be produced accurately according to customers’ technical drawings or physical samples to meet all special assembly requirements.

3. Application Fields

Widely used in industrial cabinets, precision testing instruments, medical equipment, small hardware machinery, photographic equipment and other fields for quick adjustment, disassembly and fixing of components.

4. Factory Advantages

1. Self-owned CNC turning production lines with mature processing technology and stable dimensional accuracy;

2. Full inspection of finished products to strictly control defects and guarantee reliable quality;

3. OEM & ODM bulk customization supported, various surface treatments optional;

4. Fast sampling, short mass production lead time and stable supply.