Thumb Screws

Type P (plain) thumb screws, also called Type B screws, feature no shoulder.

They feature a shoulder to provide a bearing surface for holding parts below their head. These Type S (shoulder) screws are also referred to as Type A screws.

Come with or without shoulder / flange. Provide an easy-to-hold surface to rotate the screw.

Feature a large head allowing full hand grip for increased torque while tightening than standard knurled screws.

Four arms work in the same manner as two-arm screw heads by providing a surface to rotate the head. Also known as dog and pilot-point thumb screws.

Can fit through a latch / panel slit for holding devices in place. Also known as latching thumb screws.

Standard head of thumb screws. Generally come with knurled edges for better grip.

Winged screw heads for greater leverage & torque than spade-head thumb screws while tightening.

Two arms to offer a flat surface for removing / installing screws by pushing fingers against their faces / arms.

Can be tightened using a wrench for more fastening torque.

Raised head for easy gripping.

High head height provides more leverage & greater torque during tightening than low-profile thumb screws.

Thin head for low-clearance spaces.

Feature a slightly raised head & a decorative flared collar.

Used in tight spaces. Also called slim thumb screws.

Provides hardness, structural rigidity & magnetic properties

Corrosion-resistant & mildly magnetic; moderate structural rigidity

Good electrical conductivity, decorative properties and non-magnetic nature

Non-conductive, lightweight & cheaper to use than any other material

Has lesser tensile strength and rigidity than steel; provides strong magnetic properties

Lighter than stainless steel; provides strength and non-magnetic properties

Higher hardness and durability than aluminium

Mild corrosion resistance in dry, indoor environments

Provides dark colour to screws for blending in with the machinery

Done on stainless steel screws for increased corrosion resistance by removing free iron & creating a protective oxide layer.

These knobs feature threaded studs that mount onto the threaded hole of a screw head

These knobs are paired with a hex or socket head screw and pressed together for a secure grip.

They feature a threaded hole for installation on the threaded stud of a screw head.