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Thru Hole Knob Manufacturer

As a long-standing thermoplastic thru-hole knob manufacturer, we design and produce control knobs that meet the performance demands of industrial and regulated environments. Our thru-hole knobs are engineered for reliable torque, consistent fit, and long service life in equipment where precise control matters. From OEM production runs to replacement components, we manufacture knobs that integrate seamlessly into mechanical assemblies across medical, industrial, and outdoor applications.

Manufactured Thru Hole Knobs

Nearly all of our knobs and handles are available in thru-hole options. Thermoplastic thru-hole knobs and handles are used in a variety of equipment to ensure proper clamping. Some of the common thru hole knobs we supply include:

Sizes Available for Thru Knobs

DimcoGray manufactures thru knobs in a variety of sizes and diameters depending on your application.  We offer thru knobs ranging from .25” to 3/8-16”.

 

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red and black plastic thru hole knobs

Thru-Hole Knobs Designed for Demanding Applications

We manufacture thru-hole knobs to provide secure attachment and dependable control in equipment that requires frequent adjustment. Our thru-hole designs allow shafts to pass completely through the knob, supporting set screws or other fastening methods for stable operation. By producing these components in-house, we maintain tight dimensional control over bore sizing, overall geometry, and material performance. This approach allows us to support customers who need consistent quality for medical devices, equipment controls, and industrial machinery where failure or inconsistency is not acceptable.

Material Options for Thru-Hole Knobs Across Industries

We offer multiple material options for thru-hole knobs so our customers can match performance requirements to their specific application. Material selection affects durability, temperature tolerance, chemical resistance, and operator interaction. By manufacturing thermoplastic, phenolic, and soft-feel thru-hole knob options, we support a wide range of industries with different environmental and regulatory needs.

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Thermoplastic Thru-Hole Knobs for Lightweight Control

Our thermoplastic thru-hole knobs are designed for applications that require strength without unnecessary weight. These knobs provide consistent performance in medical equipment, equipment controls, and outdoor power equipment where exposure to cleaning agents, moisture, or vibration is common. As a thermoplastic thru-hole knob manufacturer, we control material formulation and molding processes to ensure repeatable results, smooth operation, and dependable shaft engagement.

Phenolic Thru Hole Knobs for High-Heat and High-Stress Use

We manufacture phenolic thru-hole knobs for environments where elevated temperatures and mechanical stress are part of normal operation. Phenolic materials offer excellent heat resistance and electrical insulating properties, making them well-suited for industrial equipment and food processing machinery. Our phenolic thru-hole knob designs maintain structural integrity under load while supporting precise adjustments in demanding conditions.

Soft-Feel Thru Hole Knobs for Operator Comfort

Our soft-feel thru-hole knobs are designed to improve grip and reduce operator fatigue during repeated adjustments. These knobs combine a rigid internal structure with an exterior surface that enhances tactile control. We commonly supply soft-feel thru-hole knob solutions for medical devices, farm equipment, and construction machinery where gloves, moisture, or extended use can make standard knob surfaces less effective.

 

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Precision Manufacturing and Customization Capabilities

We manufacture thru-hole knobs with a focus on dimensional accuracy, repeatability, and long-term performance. By keeping production in-house, we maintain control over bore diameters, shaft alignment, and overall tolerances. This level of precision is critical for equipment controls where improper fit can lead to slippage, uneven wear, or reduced operator confidence.

Our customization capabilities allow us to support OEM requirements and specialized applications. We can produce thru-hole knobs with specific bore sizes, shaft profiles, and fastening features to match customer specifications. Material selection, surface texture, and overall geometry are carefully managed to ensure compatibility with medical equipment, industrial machinery, and outdoor power systems. This manufacturing approach allows us to deliver components that integrate cleanly into existing designs without the need for modification.

Partner With a Proven Thru-Hole Knob Manufacturer

If you are sourcing a thermoplastic thru-hole knob manufacturer with experience supporting medical, industrial, and equipment control applications, we are ready to work with you. We collaborate directly with engineering and procurement teams to manufacture thru-hole knobs that meet exact performance, material, and fit requirements. Contact us to discuss your application details, production needs, and timelines so we can provide a solution aligned with your equipment and operating environment.

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Product Catalog

DimcoGray’s vast selection of handles and knobs are integral components used in equipment produced by some of the world’s largest OEMs in a variety of industries. Our expertise in producing high-quality plastic knobs and plastic handles is the reason our customers depend on us for the most challenging. 

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More About Custom Molding Orders

DimcoGray has been in the business of molding plastics since 1924. Our reputation of providing an extensive line of quality knobs and handles is synonymous with the DimcoGray name... and still is today.

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How To Measure

DimcoGray offers plastic Thru Hole Knobs in a variety of shapes and sizes. When determining the size Thru Hole Knob you need for your project, please reference the line drawing provided to determine the handle that is right for you! If you have any questions about how we measure our knobs and handles, please feel free to reach out.

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Thru Hole Knobs Manufacturer

Why DimcoGray?

Never satisfied with the status-quo, our business is constantly evolving to help customers manage their bottom line. We are wholly committed to producing the reliable, durable thru-hole knobs and handles that have made DimcoGray well-known throughout the industry for more than 95 years. Thru-hole solutions are ideal for a variety of applications, from industrial equipment to farm and construction machinery, while still meeting the ergonomic needs for human-machine interface. DimcoGray supplies reliable, ergonomic thru-hole knobs and handles suitable for every foreseeable application.

While thru-hole knobs and handles are available from a number of sources, only DimcoGray delivers business solutions that go beyond product availability and price. Contact us today to request a quote for our thru knob products.

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Contact Information

900 Dimco Way
Centerville, Ohio 45458

937 433 7600

937-433-9545