Cross Flat Plastic Knob Stainless Steel Bolt, 3/8 x 37mm, D40 | Achieve Ergonomic Efficiency with Adjustable Handles for Machinery
Colorful grip flat knobs are comfortable, beautiful and durable screw parts. 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.
Comply with ROHS & REACH certification, the body is made of strong nylon + glass fiber material to enhance the usage life. UJEN R&D Four sides Screw 3/8x37mm, 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. We design and manufacture all of our finished molds in-house, and we are happy to work together to develop your specialized products. UJEN is an ISO 9001 certification Cross Flat Plastic Knob Stainless Steel Bolt, 3/8 x 37mm, D40, Star plastic knob screw, Grip knob, Thumb knob, Tighten knob bolt manufacturer from Taiwan since 1994. UJEN Development Co., Ltd., with over 45 years of expertise, specializes in manufacturing precision hand screws, knob screws, plastic knobs, adjustable handles, and indexing plungers. As an ISO 9001:2015 certified company, we offer custom solutions and professional mold-making capabilities to enhance product functionality and brand value. Our commitment to quality and innovation ensures we meet the specific needs of our customers in various industries. UJEN is a leading manufacturer of high-quality hand screws in the screw parts industry. With over 40 years of expertise in plastic injection mold development, we have specialized in crafting precision rotary knobs and handles. We offer technical consulting services and customized design solutions to provide full-service from design to production.
Cross Flat Plastic Knob Stainless Steel Bolt, 3/8 x 37mm, D40
K340-40STSU637
Star plastic knob screw, Grip knob, Thumb knob, Tighten knob bolt
Colorful grip flat knobs are comfortable, beautiful and durable screw parts. 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.
Comply with ROHS & REACH certification, the body is made of strong nylon + glass fiber material to enhance the usage life. UJEN R&D Four sides Screw 3/8x37mm, 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. We design and manufacture all of our finished molds in-house, and we are happy to work together to develop your specialized products.
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.
- 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
Thread Type
- Screw
Thread Size
- 3/8-16
Thread Material
- SUS304
Screw Length(mm/inch)
- 37 / 1.46
External Diameter(mm)
- 37~40
External Height(mm)
- 9~12
External Material
- PA6+GF
External Shape
- Cross
Gallery
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Cross Flat Plastic Knob Stainless Steel Bolt, 3/8 x 37mm, D40 | Achieve Ergonomic Efficiency with Adjustable Handles for Machinery
Based in Taiwan since 1994, UJEN DEVELOPMENT CO., LTD. expertise in manufacturing high-quality Cross Flat Plastic Knob Stainless Steel Bolt, 3/8 x 37mm, D40, 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.
