To build a custom knob or thumb screw, pair one of these knobs with a hex or socket head screw. They provide a secure grip to position, tighten, and hold fixtures, equipment, and machinery.

Convert screws into knobs so large you can grip them with heavy work gloves. Slip these knobs onto a hex or socket head screw and tighten the set screw to secure. They provide a secure grip to position, tighten, and hold fixtures, equipment, and machinery.

A knurled head allows for slip-resistant controlled adjustment.

Tighten these thumb screws by hand or with a hex key for more torque.

Made from 18-8 stainless steel, these thumb screws are chemical resistant. They have a thin, knurled head for use in low-clearance applications.

These metric thumb screws are made of chemical-resistant 18-8 stainless steel. They have a thin, knurled head for use in low-clearance applications.

These metric thumb screws have a thin, knurled head for use in low-clearance applications. They have a black-oxide finish to resist corrosion in dry environments.

These metric thumb screws have a raised head that makes them easy to grip. A black-oxide finish provides corrosion resistance in dry environments.

These metric thumb screws are made of chemical-resistant 18-8 stainless steel. They have a raised head that makes them easy to grip.

Brass thumb screws are corrosion resistant in wet environments and electrically conductive.

Brass thumb screws are corrosion resistant in wet environments and electrically conductive.

Stainless steel thumb screws have excellent corrosion resistance in most environments.

With a slim profile, these metric thumb screws fit in tight spaces.

Made from 18-8 stainless steel, these thumb screws are chemical resistant. Also known as dog- and pilot-point thumb screws, insert the point into a drilled hole or slot to hold items in place.

These steel thumb screws have a black-oxide finish to resist corrosion in dry environments.