304 Stainless Steel Knurled Thumb Shoulder Hand Tighten Step Adjustment Tool-Free Screw Custom CNC Precision Fastene One-Stop Fastener Kitting Service

These knurled shoulder thumb screws are CNC turned from 304 stainless steel with outstanding corrosion resistance. The diamond knurled head increases friction, enabling convenient tool-free hand tightening and disassembly. Integrated precision shoulder controls assembly clearance, serves as stop locator and maintains consistent spacing. Standard external thread ensures stable locking performance. Widely used for test fixtures, adjustable brackets, equipment panels, instrument housings and assemblies requiring frequent adjustment. Customization on dimension, material and surface finish is available. We provide one-stop supporting service including custom labels, operation manuals, personalized packaging and parts kitting. Strict dimensional inspection guarantees high precision and stable quality, simplifying your purchasing arrangement.