Knurled plastic knob nut, Female Threaded grip knob, Thumb knob, Tighten knob | Enhance Your Equipment with Durable Knob Screws for Easy Adjustment"

Knurled knob 5/16 Diameter30 | Customizable knob screws from Taiwan

Knurled Flat Knob Nut, 5/16, D30 - Knurled knob 5/16 Diameter30
  • Knurled Flat Knob Nut, 5/16, D30 - Knurled knob 5/16 Diameter30
  • 9 color of the short knob
  • The konb also can be made in customized color

Knurled Flat Knob Nut, 5/16, D30

K320-30SU5

Knurled plastic knob nut, Female Threaded grip knob, Thumb knob, Tighten knob

Colorful grip flat knob can be mass produced and exported. The body is made of tough nylon + glass fiber to increase durability. We design and manufacture all of our finished molds in-house, and we are happy to work together to develop your specialized products. ISO9001:2015 certified, high quality products and services. We provide a wide range of customized services, welcome to contact us.

Different from the traditional shape of metal flat knobs, the innovative design of curved shape is ergonomic and can be easily tightened. The macaron-colored knob increases product and corporate recognition. Create a unique style for your products and enhance the value of your products.

UJEN R&D Knurled nut 5/16, We can advise and produce according to customer's needs, no matter what size or material. No scratching at the hand rotation, no sharp edges and burrs. Matte surface texture appearance.

Function

Plastic knob screws are produced via a one-shot injection molding process, firmly bonding the screw shaft to the knob body. This construction eliminates concerns about loosening or having to replace the screw. Their core advantage lies in combining the convenience of manual tightening with long-term stability. Made from an impact-resistant, wear-resistant nylon-glass fiber composite via injection molding, these screws maintain a reliable locking force even under light vibration, high loads, or frequent assembly and disassembly.

By minimizing extra metal components, they reduce issues such as rust or cold welding while providing insulation and a lightweight design—ideal for electronics, sports equipment, factory automation, and even medical devices. The knob’s edges feature anti-slip texturing and an ergonomic shape, allowing users to quickly tighten or remove it by hand, sparing the need for wrenches or other tools. Adding a scratch-proof pad further protects the locking interface, preventing scratches or vibration noise.

Additionally, these screws have passed ISO9001, ROHS, REACH, and SGS certifications, indicating that every stage—from raw materials to manufacturing—meets environmental and safety standards. Overall, the primary focus of plastic knob screws is quick, efficient operation with high durability and resistance to loosening. They deliver a long-lasting, secure locking performance while aligning with various equipment needs for green production and ergonomic design.

Features
  • RoHS REACH compliant with knob.
  • Flame-proof, heat-resistant, anti-UV properties.
  • The head knob has a matte finish.
  • The head knob does not hurt hands, no sharp angles or burrs.
  • The knob is easy to tight with a hand. the best design of beauty and grip.
  • The metal is shiny and detailed.
Dimensions
Dimensional drawing of Thin Flat Grip Knob nut
Thread Type
  • Threaded hole
Thread Size
  • 5/16-18
Thread Material
  • Steel
Metal Finishing
  • zinc plated
External Diameter(mm)
  • 29~32
External Height(mm)
  • 5~8
External Material
  • PA6+GF
External Shape
  • Knurled
Gallery
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FAQ
What is UJEN's core business?

UJEN specializes in the innovative design and manufacturing of hand knob screws and related hardware accessories. With over forty years of extensive experience,...

Can you give specific examples of innovation in UJEN's clamping knob screws?

Our innovation goes beyond the design of clamping knob screws, extending to technological improvements and material applications. For instance, our hand...

What role does customization play in UJEN's business?

UJEN understands the diversity of market demands; hence, we provide comprehensive customization services ranging from material selection, sizing, to surface...

How does UJEN ensure high product quality?

Quality is the lifeline of UJEN. From the selection of raw materials to production process control, every step is strictly executed according to international...

Why do UJEN's spring plungers stand out in the market?

Our spring plungers stand out not only due to their high quality and innovative design but also because of our deep understanding of customer needs and our rapid...


Knurled Flat Knob Nut, 5/16, D30 | Achieve Ergonomic Efficiency with Adjustable Handles for Machinery

Based in Taiwan since 1994, UJEN DEVELOPMENT CO., LTD. expertise in manufacturing high-quality Knurled Flat Knob Nut, 5/16, D30, hand screws, knob screws, adjustable handles, grip knobs, and indexing plungers. Their commitment to customization and precision ensures each component, from hand screws to indexing plungers, meets rigorous standards. This dedication positions UJEN as a leader in supplying durable and reliable industrial components to global markets.

UJEN Development Co., Ltd. is a leading manufacturer of precision-engineered hand screws, knob screws, plastic knobs, adjustable handles, and indexing plungers for a variety of industrial needs. Our 45-year legacy, combined with ISO 9001:2015 certification, underscores our commitment to quality, innovation, and customer satisfaction. Specializing in custom solutions, we excel in professional moldmaking, enhancing equipment functionality across industries.

UJEN has been offering customers high-quality hand screws for industrial machinery since 1994, both with advanced technology and 47 years of experiences, UJEN ensures each customer's demands are met.