Thumb knobs are available with female, male and through threads and are used for adjustment or fixing. There are various styles including, knobs with or without boss, with solid or recessed heads, screwdriver slots and fine or heavy knurls.
|Knurled Thumb Knob Female Thread|
|Knurled Thumb Knob Through Thread|
|Knurled Thumb Knob Male Thread|
|Thumb Knob Male Thread|
|Thumb Knob Female Thread|
|Thumb Knob With Screwdriver Slot Male Thread|