Brass Knurled Thumb Screws Custom Engraved Letter Hand Adjustment Screws Tool-Free Knurled Head Brass Thumb Bolts for Equipment Panels

Our knurled thumb screws are precision machined from solid brass with circumferential knurled texture, offering strong friction for convenient hand tightening without tools. We support customized laser engraving including letters, numbers, symbols and brand logos on the head surface. Pure brass material delivers excellent texture, corrosion resistance and long service life. Perfect for instrument panels, testing fixtures, cabinet doors, photographic equipment, display racks and any assembly requiring frequent manual adjustment. Flexible customization options include screw diameter, length, head size, engraving content and surface finishing. Take our all-in-one service: custom labels, user manuals, branded packaging and component kitting. Strict dimensional inspection guarantees stable quality and simplifies your procurement workflow.