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Knob Screws（Round Shape, Type：Mushroom Shape）
Knob Screws are utilized in various applications to enable manual control, adjustment, or fastening in a wide range of applications. They have widespread applications across diverse industries such as in automation systems. In various manufacturing industries, for example, food and pharmaceutical industries, and electronics industries.
When selecting a Knobs Screws, it is crucial to consider factors, including size, shape (eg., round, mushroom, ball, T- shaped and polygon shape), material (eg., plastic, stainless steel, aluminum and so on.) and mounting type for example threaded and tapped. These considerations are crucial for ensuring the production of high-quality products. We highly recommend reputable brands such as MISUMI, ESCO and KONISHI, as well as cost-effective options from MISUMI ECONOMY.
Take advantage of the convenience of FREE SHIPPING and NO MINIMUM ORDER on knob screw. Should you have any doubts or require assistance in choosing the right product, our experts are readily available to provide advice and guidance.
When selecting a Knobs Screws, it is crucial to consider factors, including size, shape (eg., round, mushroom, ball, T- shaped and polygon shape), material (eg., plastic, stainless steel, aluminum and so on.) and mounting type for example threaded and tapped. These considerations are crucial for ensuring the production of high-quality products. We highly recommend reputable brands such as MISUMI, ESCO and KONISHI, as well as cost-effective options from MISUMI ECONOMY.
Take advantage of the convenience of FREE SHIPPING and NO MINIMUM ORDER on knob screw. Should you have any doubts or require assistance in choosing the right product, our experts are readily available to provide advice and guidance.
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Specification/Dimensions
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Mounting Section Dia. d (mm) or Nominal Dia.
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Environmentally friendly
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Mounting Section Type
- Threaded
- Threaded (Stepped)
- Tapped
- Tapped (Stepped)
- Round Bore
- Press Fit
- Others
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Characteristics/Applications
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Mounting Section, Length L(mm)
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Main Body, Type
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Main Body Material
- Stainless Steel
- Steel
- Aluminum
- Nylon
- Phenol
- ABS
- Polyacetal
- Brass
- Polyamide
- Polypropylene
- Melamine Plastic
- EPDM
- Others
- Vinyl
- Plastic_
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Round Shape, Type
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Mounting Section, Material
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Threaded End Machining
- None
- Spherical
- With Pad
- Cone Point
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Set Screw Flat Machining
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Side Machined
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Polygonal Shape, Type
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T Shape, Type
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Additional Function
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Tapped, Round Hole Machining
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Main Body, Surface Treatment
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Mounting Section, Surface Treatment
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Cleaning Method
- Degreasing
- Precision Cleaning
- Electrolytic Polishing + Precision Cleaning
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MISUMI
Plastic Knobs/Mushroom Shaped
Plastic Knobs Screws are commonly used in various applications to secure, adjust, and control different mechanical devices. They offer a wide variety of sizes to choose from.
[Feature]
● Shape : Mushroom Shaped
● Thread Size : M5, M6 and M8
● Material :
Knobs - Phenol Resin
Screws - Male Thread (SWCH12A), Female Thread (Brass)
[Application]
Plastic Knobs Screws are commonly used in fastening, assembly, adjustment, clamping and so onFrom: ฿ 100.10 Days to Ship: 
Same day
Same day
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Economy seriesYou can add up to 6 items per a category to the compare list.
Until 31/03/2025
Until 31/03/2025Mushroom Shaped Knob
Knobs Screws are an economy item, The price is cheaper than the MISUMI standard product. They offer a wide variety of sizes to choose from.
[Feature]
● Shape : Mushroom Shaped
● Thread Size : M5, M8 and M10
● Material :
Knobs - Phenolic Resin
Screws - Male Thread (SUM22L), Female Thread (Brass )
[Application]
Knobs Screws are commonly used in fastening, assembly, adjustment, clamping and so onFrom: ฿ 99.00 Special Price Days to Ship:
Same day
Same day
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You can add up to 6 items per a category to the compare list.
Until 31/03/2025
Until 31/03/2025NBK
Made of phenol resin with excellent durabilityFrom: ฿ 118.83 Special Price Days to Ship:
Same day
Same day
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You can add up to 6 items per a category to the compare list.
Until 31/03/2025
Until 31/03/2025IMAO CORPORATION
Resin knob with a simple design that fits to the hand.
[Features]
· Knob with excellent design characteristics.
· Tapped type main unit available in 6 colors (black, orange, gray, yellow, blue, red).
· Operating temperature: -30 to +130°C
[Applications]
· Ideal for screw fastening parts of various devices.From: ฿ 116.80 Special Price Days to Ship:
Same day
Same day
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You can add up to 6 items per a category to the compare list.
KONISHI
It is made of black phenolic resin and has a male screw the knob has a glossy and beautiful surface. Operating temperature max110° C min-20° CFrom: ฿ 196.39 Days to Ship:
5 Day(s)
5 Day(s)
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You can add up to 6 items per a category to the compare list.
Stainless Steel Knurled Knob (KK)
IMAO CORPORATION
[Features]·Stainless steel knob resistant to bacteria and stains. ·No knurling applied.From: ฿ 601.91 Days to Ship:
5 Day(s)
5 Day(s)
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You can add up to 6 items per a category to the compare list.
KONISHI
It is made of black phenolic resin, with a male screw and the surface of the knob is glossy and beautiful. Operating temperature max110° C min-20° CFrom: ฿ 196.55 Days to Ship:
5 Day(s)
5 Day(s)
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You can add up to 6 items per a category to the compare list.
From: ฿ 184.97 Days to Ship:
6 Day(s)
6 Day(s)
| Brand |
|---|
| Product Series |
| CAD |
| From |
| Days to Ship |
| Mounting Section Dia. d (mm) or Nominal Dia. |
| Environmentally friendly |
| Mounting Section Type |
| Characteristics/Applications |
| Mounting Section, Length L(mm) |
| Main Body, Type |
| Main Body Material |
| Round Shape, Type |
| Mounting Section, Material |
| Threaded End Machining |
| Set Screw Flat Machining |
| Side Machined |
| Polygonal Shape, Type |
| T Shape, Type |
| Additional Function |
| Tapped, Round Hole Machining |
| Main Body, Surface Treatment |
| Mounting Section, Surface Treatment |
| Cleaning Method |
You can add up to 6 items per a category to the compare list.    | You can add up to 6 items per a category to the compare list.  Until 31/03/2025   | You can add up to 6 items per a category to the compare list.  Until 31/03/2025 | You can add up to 6 items per a category to the compare list.  Until 31/03/2025                 | You can add up to 6 items per a category to the compare list.  | You can add up to 6 items per a category to the compare list.  | You can add up to 6 items per a category to the compare list.  | You can add up to 6 items per a category to the compare list.  | |
| Brand | MISUMI | NBK | IMAO CORPORATION | KONISHI | IMAO CORPORATION | KONISHI | ESCO | |
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| CAD |
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| From | ฿ 100.10 | ฿ 99.00 Special Price On Sale Until 31/03/2025 | ฿ 118.83 Special Price On Sale Until 31/03/2025 | ฿ 116.80 Special Price On Sale Until 31/03/2025 | ฿ 196.39 | ฿ 601.91 | ฿ 196.55 | ฿ 184.97 |
| Days to Ship | Same day | Same day | Same day | Same day | 5 Day(s) | 5 Day(s) | 5 Day(s) | 6 Day(s) |
| Mounting Section Dia. d (mm) or Nominal Dia. | 5 ～ 8 | M8 ～ M10 | M5 ～ M8 | M3 ～ M10 | M5 ～ M8 | M4 ～ M8 | M5 ～ M8 | M5 ～ M6 |
| Environmentally friendly | - | - | - | - | - | - | - | - |
| Mounting Section Type | Threaded / Tapped | Threaded / Tapped | Threaded / Tapped | Threaded / Tapped | Tapped | Tapped | Threaded | Threaded / Tapped |
| Characteristics/Applications | - | - | - | - | - | - | - | - |
| Mounting Section, Length L(mm) | 10 ～ 15 | 14 ～ 16 | 7 ～ 14 | 6 ～ 40 | 7 ～ 12 | 8 ～ 14 | 9 ～ 14 | - |
| Main Body, Type | Round Shape | Round Shape | Round Shape | Round Shape | Round Shape | Round Shape | Round Shape | Round Shape |
| Main Body Material | Phenol | Phenol | Phenol | Polyamide | Phenol | Stainless Steel | Phenol | Phenol |
| Round Shape, Type | Mushroom Shape | Mushroom Shape | Mushroom Shape | Mushroom Shape | Mushroom Shape | Mushroom Shape | Mushroom Shape | Mushroom Shape |
| Mounting Section, Material | Steel / Brass | Steel / Brass | Steel / Brass | Steel / Brass | Brass | Stainless Steel | Steel | Brass / Others |
| Threaded End Machining | None | None | None | None | - | - | None | - |
| Set Screw Flat Machining | None | None | - | - | None | - | None | - |
| Side Machined | - | Not Provided | - | - | Not Provided | - | Not Provided | - |
| Polygonal Shape, Type | - | - | - | - | - | - | - | - |
| T Shape, Type | - | - | - | - | - | - | - | - |
| Additional Function | Not Provided | Not Provided | Not Provided | Not Provided | Not Provided | Not Provided | Not Provided | Not Provided |
| Tapped, Round Hole Machining | Blind Bore | - | Blind Bore | Blind Bore | Blind Bore | Blind Bore | - | - |
| Main Body, Surface Treatment | - | None | None | None | None | Electrolytic Polishing | None | - |
| Mounting Section, Surface Treatment | None / Trivalent Chromate | None / Zinc Plating | None / Trivalent Chromate | None / Zinc Plating | None | None | Trivalent Chromate | Bright Chrome Plating |
| Cleaning Method | - | - | - | - | - | - | - | - |
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Related Categories to Knob Screws
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FAQ Knob Screws
- Question: How do I properly install the knob screw?
- Answer: Here are some example to install a Knob Screws tapped type
1. Prepare the Surface: Clean and clear the area where the knob screw will be installed.
2. Choose the Right Screw: Select a screw with the appropriate size and thread that matches the knob.
3. Mark the Location: Use a pencil to mark where the knob screw will go, ensuring proper alignment.
4. Create Pilot Holes (if needed): Use a drill to create small guide holes in the marked spots, if the material is hard.
5. Insert the Screw: Place the screw through the knob and into the pilot hole or surface.
6. Tighten the Screw: Use a screwdriver to turn the screw clockwise, securely fastening the knob in place.
7. Test the Knob: Check the knob's movement and stability to ensure proper installation.
8. Adjust if Necessary: If the knob feels loose, you may need to tighten the screw further. - Question: Type of knobs screw?
- Answer: There are various types of knob screws designed for specific applications. Here are a few common types:
1. Round Knurled Thumb Screws: These have textured heads for better grip, often used in applications where a secure grip is essential.
2. Lobed Knobs: Have a lobed design for a comfortable grip, commonly found on industrial and mechanical equipment.
3. Ball Knobs: These have a spherical shape and are commonly used on levers or control mechanisms.
4. T-Knobs: Shaped like the letter "T," these knobs are simple to turn and are used in applications where frequent adjustments are needed.
5. Star Knobs: Featuring a star-shaped head for easy turning, often used in applications requiring frequent adjustments.
6. Mushroom Knobs: Shaped like a mushroom. It is used for cabinets, drawers, and doors, these knobs provide a comfortable grip for opening and closing
- Question: How to choose the knob screw?
- Answer: Here are some example how to choose the knob screw
1. Usage: Identify its purpose, such as indoor/outdoor and specific applications like machines, jig fixtures, doors, cabinets, etc.
2. Material: Match durability to the environment (stainless steel, aluminum, brass and plastic (eg., ABS, Nylon and so on).
3. Thread Type and Thread Size : Ensure screw matches knob (Threaded, Tapped) or Press fit. and the thread size is appropriate to install
4. Size: Select a knob head size that is appropriate for your intended use.
5. Head Type: Choose based on knob design (eg.,round, T Shape, Wing Shape, Polygon shape etc.).
6. Easy to install : Ensure easy installation and tightening.
7. Follow Guidelines: Check knob manufacturer's recommendations. - Question: What is the usage for knob screw?
- Answer: The primary usage of a knob screw is to enable manual control, adjustment, or fastening in a wide range of applications. Here are additional examples of how knob screws are used:
1. Camera Tripods: Knob screws are used to secure the legs and adjust the height of camera tripods, aiding photographers in achieving stable shots.
2. HVAC Systems: Knob screws are used to control airflow direction and intensity in ventilation systems, enhancing indoor air quality and comfort.
3. Scientific Research Instruments: In laboratories, knob screws are employed to fine-tune the position of laser optics, ensuring precise experimental setups.
4. Automated Manufacturing: Knob screws play a role in industrial automation by adjusting the position of sensors. - Question: What is the difference of knob screw and door knob?
- Answer: Knob Screw:
A knob screw is a type of fastener used to secure or adjust objects together. It consists of a threaded and a head. The head is designed for easy gripping and turning by hand. Knob screws are commonly used in applications where frequent adjustments or temporary fastening is required. They are often found in devices like clamps, jigs, and fixtures. The main purpose of a knob screw is to provide a manual way of securing two components together without the need for additional tools.
Door Knob:
A door knob, on the other hand, is a handle or knob attached to a door that allows people to open and close the door. It is usually mounted on a spindle that connects the knob on the outside of the door to a mechanism on the inside, allowing the door to be latched or unlatched. Door knobs come in various designs and materials, and they serve both functional and aesthetic purposes. They are an integral part of doors in buildings and structures
In summary,
A knob screw is a threaded fastener used for securing or adjusting objects together, often by hand.
A door knob is a handle attached to a door, allowing people to open and close the door, serving a functional and aesthetic purpose.
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