功能

• Lowlet Processing (Self-Assembly) Knob Screw Knobs
• Black glossy Delrin acetal resin knob caps can be assembled into fully threaded knobs by inserting perforated screws (sold separately) into the cap base. Joins by pressing together in a perpendicular direction.　To prevent excessive pressure, use a stop or spacer equal to the length of the thread (excluding the thread head).