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Knob Screws（Main Body, Surface Treatment：Coating）

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.

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Specification/Dimensions

Mounting Section Dia. d (mm) or Nominal Dia.
1/2

1/4

3

M3

3/8

4

M4

5

M5

5/16

6

M6

6.1

7

8

M8

9

10

M10

12

M12

M14

16

M16

20

M20

M24
Drawing

Clear

Mounting Section Type
- Threaded
- Threaded (Stepped)
- Tapped
- Tapped (Stepped)
- Round Bore
- Press Fit
- Others
Clear

Mounting Section, Length L(mm)
2

3

4

5

6

6.5

6.6

7

7.2

7.5

8

8.4

8.5

8.8

9

9.1

9.5

9.6

10

10.5

10.7

11

11.5

11.9

12

12.5

13

13.4

13.5

13.8

14

14.5

14.6

15

16

17

18

18.4

18.8

19

19.6

20

21

22

23

23.4

23.8

24

24.6

25

26

26.5

27

28

28.4

28.5

28.8

29

30

31

32

33

34

35

36

37

38

39

39.5

40

42

44

45

50

54.5

55

60

70

80
Drawing

Clear

Main Body, Type
- Round Shape
- Polygonal Shape
- T Shape
- Wing Shape
- Special Shape
- Related Components
Images

Clear

Main Body Material
- Stainless Steel
- Steel
- Aluminum
- Nylon
- Phenol
- ABS
- Polyacetal
- Brass
- Polyamide
- Polypropylene
- Melamine Plastic
- EPDM
- Others
- Vinyl
- Cast Iron
- Plastic_
Clear

Round Shape, Type
- Cylindrical Shape
- Clamp Shape
- Mushroom Shape
- Rose Shape
- Volume Knob Shape
- Balls
Images

Clear

Mounting Section, Material
- Stainless Steel
- Steel
- Aluminum
- Nylon
- Phenol
- Polyacetal
- Brass
- Tinned Bronze
- Others
- Vinyl Chloride
Clear

Threaded End Machining
- None
- Spherical
- With Pad
- Cone Point
Clear

Set Screw Flat Machining
- None
- Provided (1 Place)
- Provided (2 Places)
Images

Clear

Side Machined
- Not Provided
- Knurling
- Checker Knurled
- Dimple
- Diamond Cut
Images

Clear

Polygonal Shape, Type
- Triangular Shape
- Cross Shape
- Pentagon Shape
- Hexagonal Shape
- Heptagonal Shape
- Octagonal Shape
- Star-shaped
Images

Clear

T Shape, Type
- Bar
- Wing
Images

Clear

Additional Function
- Not Provided
- With Hex Socket
- With Cross Recess
- With Slitting
- Washer Integrated
- Fall-off Prevention
- Axial Bearing Built-in
- Cylindrical (With Counterbored Hole)
- Lock
- With Scale
- Others
Images

Clear

Tapped, Round Hole Machining
- Blind Bore
- Through
- Reamer Finishing
Images

Clear

Main Body, Surface Treatment
- None
- Trivalent Chromate
- Black Oxide
- Tumble Polishing
- Coating
- Shot Blasting
- Buff Polished + Chrome Plating
- Brushed Finishing
- Chrome Plating
- Electroless Nickel Plating
- Electrolytic Polishing
- Buffed
- Anodize
- Others
- Gloss chrome plated
Clear

Mounting Section, Surface Treatment
- None
- Trivalent Chromate
- Black Oxide
- Nitriding Treatment
- Nickel Plating
- Bright Chrome Plating
- Zinc Plating
- Chrome Plating
- Others
- Chromate
Clear

Brand	(0) (0) DAIMARU BYORA SEISAKUSHO (0) ESCO (0) GOSHO WORKS (0) HALDER (1) HILOGIK (0) IMAO CORPORATION (3) KONISHI (1) KONOE (0) KYOWA (0) MITSUBOSHI CI (0) NBK (2) RICHENGINEERING (0) RS Pro (0) SHIMIZU (0) SUGATSUNE (0) SUNCO (0) TAKIGEN (0) TRUSCO (0)
Filter By	All Sale Items
CAD	2D 3D
Days to Ship	All Same day 1 Day(s) or Less 3 Day(s) or Less 4 Day(s) or Less 5 Day(s) or Less Others

7 items

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: 30; 60; 90

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T-Shaped Knob_KTAF

NBK

Aluminum T-shaped knob. The shape feels familiar in the hand and can handle a lot of force.

From: ฿ 1,034.20
Days to Ship: 5 Day(s)

5 Day(s)

Compare

Until 31/03/2025

Cross-Shaped Knob (CK)

IMAO CORPORATION

Classic cross-shaped knob made from cast iron.
[Features]
· 3 types of finish available for boss part: bored, reamed and tapped.
· Standard-type cross shape that can be securely tightened.
[Applications]
· Ideal for locations in which strong clamping is required.

From: ฿ 157.93
Special Price
Days to Ship: Same day

Same day

Compare

Cross Knob CK/CKT

NBK

Steel cross knob.
[Features]
·FC200, chijimi baking paint.
·Pilot hole or female thread can be selected by product code.
·CK-prepared hole, CKT-female thread.
[Applications]
·When you want to install and remove screws without tools.

From: ฿ 258.92
Days to Ship: 5 Day(s)

5 Day(s)

Compare

Square T Handle (Made of Aluminum) (TH-A)

Until 31/03/2025

Square T Handle (Made of Aluminum) (TH-A)

IMAO CORPORATION

[Features]·Matte Black color knob. [Materials]·Made of Aluminum.

From: ฿ 1,102.27
Special Price
Days to Ship: Same day

Same day

Compare

Until 31/03/2025

Bar Knob (BK)

IMAO CORPORATION

Strong tightening can be done by using the bar.

[Features]
· Strong tightening can be performed by using the bar

From: ฿ 497.25
Special Price
Days to Ship: Same day

Same day

Compare

Until 31/03/2025

Cross Knob CK

KONISHI

The center hole, reamer hole and tapped hole are machined on the boss center, so select from any of them.

[Features]
· Durable knob made of cast iron equivalent to JIS B2603-4.
· Standardized tapped hole with center hole type

From: ฿ 163.85
Special Price
Days to Ship: Same day

Same day

Compare

T Grip

HALDER

[Features]·Suitable for frequent putting on and taking off. [Materials]·Aluminum.

From: ฿ 1,442.00
Days to Ship: 30 Day(s)

30 Day(s)


Brand
Product Series
CAD
From
Days to Ship
Mounting Section Dia. d (mm) or Nominal Dia.
Mounting Section Type
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

	You can add up to 6 items per a category to the compare list.Compare	You can add up to 6 items per a category to the compare list.Compare Until 31/03/2025	You can add up to 6 items per a category to the compare list.Compare	You can add up to 6 items per a category to the compare list.Compare Until 31/03/2025	You can add up to 6 items per a category to the compare list.Compare Until 31/03/2025	You can add up to 6 items per a category to the compare list.Compare Until 31/03/2025	You can add up to 6 items per a category to the compare list.Compare
Brand	NBK	IMAO CORPORATION	NBK	IMAO CORPORATION	IMAO CORPORATION	KONISHI	HALDER
Product Series	T-Shaped Knob_KTAF	Cross-Shaped Knob (CK)	Cross Knob CK/CKT	Square T Handle (Made of Aluminum) (TH-A)	Bar Knob (BK)	Cross Knob CK	T Grip
CAD	2D / 3D	2D / 3D	2D / 3D	2D / 3D	2D / 3D	2D
From	฿ 1,034.20	฿ 157.93 Special Price On Sale Until 31/03/2025	฿ 258.92	฿ 1,102.27 Special Price On Sale Until 31/03/2025	฿ 497.25 Special Price On Sale Until 31/03/2025	฿ 163.85 Special Price On Sale Until 31/03/2025	฿ 1,442.00
Days to Ship	5 Day(s)	Same day	5 Day(s)	Same day	Same day	Same day	30 Day(s)
Mounting Section Dia. d (mm) or Nominal Dia.	6 ～ M10	5 ～ M20	5 ～ M12	M6 ～ M8	M12 ～ M24	5 ～ M12	M10
Mounting Section Type	Tapped / Round Bore	Tapped / Round Bore	Tapped / Others	Tapped	Tapped	Tapped (Stepped) / Round Bore	Tapped
Mounting Section, Length L(mm)	12 ～ 16	10 ～ 38	10 ～ 22	12 ～ 16	35 ～ 54.5	14 ～ 25	-
Main Body, Type	T Shape	Polygonal Shape	Polygonal Shape	T Shape	Special Shape	Polygonal Shape	T Shape
Main Body Material	Aluminum	Steel	Steel	Aluminum	Steel	Steel	Aluminum
Round Shape, Type	-	-	-	-	-	-	-
Mounting Section, Material	Aluminum	Steel	Steel	Aluminum	Steel	Steel	-
Threaded End Machining	-	-	-	-	-	-	-
Set Screw Flat Machining	None	None	-	-	-	None	-
Side Machined	-	-	-	-	-	Not Provided	-
Polygonal Shape, Type	-	Cross Shape	Cross Shape	-	-	Cross Shape	-
T Shape, Type	Bar	-	-	Bar	-	-	Wing
Additional Function	Not Provided	Not Provided	Not Provided	Not Provided	Not Provided	Not Provided	-
Tapped, Round Hole Machining	Blind Bore / Reamer Finishing	Blind Bore / Reamer Finishing	Blind Bore	Blind Bore	Through	Blind Bore / Reamer Finishing	Blind Bore
Main Body, Surface Treatment	Coating	Coating	Coating	Coating	Coating	Coating	Coating
Mounting Section, Surface Treatment	None	None	None	None	None	Others	-

Related Categories to Knob Screws

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.