Plastic Threaded Thumb Screws

Knurled Knobs, or Thumb Knobs easily press fit on to screws, creating a small knob for clamping or securing an application. These Thumb Screw Knobs, also known as Thumb Bolts, can be used with any length of screw. The knurled edge is easily gripped for tightening and loosening.

Our offer features a range of black and orange Knurled Knobs, made from Polyoxymethylene (POM). Several options available; the first two options offer easy assembly with bolts and nuts, with a single hammer-stroke. Suitable for M4, M5, M6, M8 and M10 hexagon bolts and nuts. They are in compliance with DIN 555, 601, 934, 558, 571, 931 and 7976. The third options easily assembles on socket head screws, also with one hammer-stroke. Available for inside hexagon bolts from M3 up to M10, and in compliance with DIN 912, 6912, 7984.

Also available are Knurled Screws or Nuts made from either Steel, with a tensile strength class of 5.8 (500 N/mm). This option has a visible face fine turned and blackened. The other option made from Stainless Steel AISI 303 - the visible face find turned with a matte, shot-blasted finish. Various threads available include M5 knob screw options.

A Thumb Screw Knob made from Acetal is also in our thumb knob range. These can be used as a thumb screw or a knob, with caps available for use with any length screw. Colour options include Black, Blue and Red.

The range also features a black Polyamide (PA 6) Knurled Kbob, suitable for Socket Head Caps Screws, which easily assembles into the base of the knob. Not special tools or glue is required. The knurled edge increases grip.

T-Head Thumb Screw Knobs can be press-fit onto screws to create a small knob for clamping or securing. These knobs can be used with any length screw and the T-Head design provides extra leverage when tightening.

These Thumb Screws - Wing Plastic are fasteners utilised in various applications that demand a secure and readily adjustable connection. These screws are made with a wing-shaped plastic head that offers leverage for simple twisting.

It has a strong grip and is simple to handle, allowing for quick and easy tightening or loosening by hand. The wing shape gives a wider surface area for the thumb or fingers to grasp, making it perfect for applications that need frequent adjustments. This function allows the user to apply torque without using extra tools.

Commonly used in industries such as electronics, automotive, and furniture manufacturing. They are especially suitable in situations that need a non-metallic connection since the plastic head protects sensitive or polished surfaces. As a result, they are ideal for fastening components, panels, or fittings without leaving unattractive marks or scratches.

Male Staggered Wing Knobs are designed with a protruding metal shoulder to ensure metal to metal assembly while giving good leverage. Staggered wing knobs have steel studs and are resistant to solvents, oils, grease, and chemicals.

Series Code :SR1579

Female Tapered Wing Knobs are designed to give good leverage with each turn making them ideal for applications that require frequent tightening and loosening. These tapered plastic knobs with steel inserts are easily gripped and durable.