47 Captive Screw - Styled Knob Type

[Features]
· Designed for easy manual operation.
· Features a built-in spring, causing the knob to protrude when the screw is loosened. This helps prevent forgetting to tighten the screw.
· The knob and screw head can also be finished with a matte black electrostatic coating. We can also manufacture knobs without knurling.