High Quality Material: High quality steel material, black plastic top, studs made of steel, strong wear and corrosion resistant, durable.
Easy to Use: This plastic hand knob screw is easy to install and remove, and can be easily replaced without any tools.
Beautiful Design: Star-shaped top design, very comfortable to hold, beautiful and easy to use.
Affordable: Each package includes 4 pieces of M8x20mm hand knob fastening screws, these replacement knobs can meet your different needs, are affordable and can quickly replace broken ones.
Wide Application: Widely used in machinery, instrumentation, lathes, food and industrial equipment, pharmaceutical equipment, as replacement parts, accessories, fixtures, etc.