Threaded Knurled Knobs

These Quick Fit Threaded Protection Plugs protect threads and fittings from damage during production, storage, and shipment, ensuring that they remain in good condition and ready for use when needed. The protection plug protects from contaminants like dirt, dust, debris, and moisture from the hole.

It conceals the initial thread of ordinary female threads. It is reusable and cost-effective material with less heat but excellent chemical resistance. Its ergonomic pull tab makes it simple to install and remove. Used in various applications, including hydraulic, pneumatic and general engineering industries.

• Its ergonomic pull tab makes it simple to install and remove.

• It is reusable and cost-effective material with less heat but excellent chemical resistance.

• Used in various applications, including hydraulic, pneumatic and general engineering industries.

Material: LDPE Colour: Red Series Code: SR1009

Threaded Protection Plugs designed for use on UNF Threads. Shield threads and fittings from damage and contaminants during production, storage and shipment. With fewer thread forms, they allow for quick application.

• It features fewer thread forms for faster application and may be applied or removed with a hand, hex spanner, or screwdriver.

• It is compatible with NS and NF Class 1-2-3 standard threads.

• Used in various applications, including hydraulic, pneumatic, and general engineering.

Material: LDPE, HDPE Colour: Red, Yellow Series Code: SR1077, SRF0029

Wide Flange Threaded Protection Plugs shield threads and fittings from damage and contaminants during production, storage and shipment. The nitrile gasket ensures a leak-tight seal against the mating surface. The wide flange prevents paint flakes from entering the hole upon removal. Withstands intermittent temperatures from -40C up to +100C.

• Its wide flange design keeps any paint flakes from the hole when removed.

• Their nitrile gasket seals the plug to the mating surface for leak-tightness.

• It is recommended for intermittent temperatures from -40C to +100C.

Material: PA Colour: Yellow Series Code: SR5761

Quick Fit Threaded Protection Plugs protect threads and fittings from damage during production, storage and shipment, ensuring they remain in good condition and ready for use when needed. They keep contaminants like dirt, dust, debris and moisture out of the hole.

Conceals the initial thread of standard female threads. They are suitable for various applications including those in the hydraulic and general engineering industries. They cover a wide range of thread sizes that meet Metric, Gas and UNF standards.

This series is manufactured from Post Consumer Recycled material, which is designed to support Essentra’s ESG ambitions and those of our customers. Material: LDPE - PCR Colour: Green Series Code: SRTFUPCR

Threaded Sealing Caps are designed for use with BSP and Gas Threads protect threads and fittings from damage during production, storage and shipping. Features an interior neoprene rubber sealing disc that limits fluid leakage and reduces possible shear. Used in hydraulic and pneumatic systems.

• The cap is fitted with an internal neoprene rubber sealing disk to limit fluid leakage, plus it reduces potential shearing.

• It is easy to install and remove by hand, but its hex head allows the plug to be applied or removed with a spanner or socket at low torque.

• Used in various applications, including hydraulic, pneumatic and general engineering industries.

Material: HDPE Colour: Yellow, Red Series Code: SR1126

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.

Threaded O-ring Plugs for UNF Threads include a compressed flange lip and an O-ring (optional) to provide a watertight seal and superior leakage prevention for hydraulic threads. The threaded O-ring keeps contaminants like dirt, dust, debris, and moisture out of the hole.

It may be installed using a hex wrench, screwdriver, or hand. Often used on flat-faced hydraulic fittings, it is recommended when strength and resistance are desired as it can withstand temperatures that range from -40F to 230F | -40C to 110C. Used in oil and gas, plumbing, and automotive sectors where leak-proof seals are crucial to system integrity.

• Material: PP, HDPE
• Colour: Yellow, Black, Red
• Material Flammability Standard: UL94 V-0

Waist Shaped Knobs have a curvy, hourglass shape that provides a firm gripping surface that is also comfortable. These durable knobs fit on to threaded applications and are resistant to oils, fuels, and greases.

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.