Knobs

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About Knobs

Knobs are machine elements which allow efficient tightening and loosening of screws.
The use of knobs increases work efficiency, since tools such as the wrenches and spanners used on screws are no longer required.
Efficient in places where screws are frequently handled, such as equipment changeover.　Learn More About Knobs

Selection Conditions

Select Screw Length (Lm)6

We have found 43 products.

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Part Name	Dimple Knob	Dimple Knob	Dimple Knob	Dimple Knob	Dimple Knob	Dimple Knob	Captive Dimple Knob	Captive Dimple Knob	Captive Dimple Knob
Part Number	KDM-16-M3-6	KDM-16-M4-6	KDMS-16-M3-6-BK	KDMS-16-M3-6-WH	KDMS-16-M4-6-BK	KDMS-16-M4-6-WH	KDMS-20-M5-10-SC-BK	KDMS-20-M5-16-SC-BK	KDMS-20-M5-20-SC-BK
Feature	Good Design Award	Good Design Award	Good Design Award	Good Design Award	Good Design Award	Good Design Award	Captive	Captive	Captive
Price	4.21 USD	3.74 USD	5.74 USD	6.74 USD	5.74 USD	6.74 USD	7.04 USD	7.04 USD	7.04 USD
Shape	Dimple	Dimple	Dimple	Dimple	Dimple	Dimple	Dimple	Dimple	Dimple
Type	Male Screw	Male Screw	Male Screw	Male Screw	Male Screw	Male Screw	Male Screw	Male Screw	Male Screw
Thread Part Material	Steel	Steel	Stainless Steel	Stainless Steel	Stainless Steel	Stainless Steel	Stainless Steel	Stainless Steel	Stainless Steel
Thread Size	M3	M4	M3	M3	M4	M4	M5	M5	M5
Surface	BK	BK	BK	WH	BK	WH	BK	BK	BK
CAD	CAD	CAD	CAD	CAD	CAD	CAD	CAD	CAD	CAD
Specifications	Specifications	Specifications	Specifications	Specifications	Specifications	Specifications	Specifications	Specifications	Specifications

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Part Name	Captive Dimple Knob	Captive Dimple Knob	Captive Dimple Knob	Dimple Knob	Knurled Knob	Knurled Knob	Knurled Knob	Knurled Knob	Knurled Knob
Part Number	KDMS-20-M5-10-SC-WH	KDMS-20-M5-16-SC-WH	KDMS-20-M5-20-SC-WH	KRM-25-M4-6	KNM-12-M3-6	KNM-16-M4-6	KNMS-12-M3-6	KNMS-12-M4-6	KNMS-16-M4-6
Feature	Captive	Captive	Captive	Good Design Award	Chrome Plating	Chrome Plating	SUS303	SUS303	SUS303
Price	7.81 USD	7.81 USD	7.81 USD	6.24 USD	3.58 USD	5.05 USD	8.05 USD	10.12 USD	9.99 USD
Shape	Dimple	Dimple	Dimple	Dimple	Knurled	Knurled	Knurled	Knurled	Knurled
Type	Male Screw	Male Screw	Male Screw	Male Screw	Male Screw	Male Screw	Male Screw	Male Screw	Male Screw
Thread Part Material	Stainless Steel	Stainless Steel	Stainless Steel	Steel	Steel	Steel	Stainless Steel	Stainless Steel	Stainless Steel
Thread Size	M5	M5	M5	M4	M3	M4	M3	M4	M4
Surface	WH	WH	WH	BK	CR	CR	-	-	-
CAD	CAD	CAD	CAD	CAD	CAD	CAD	CAD	CAD	CAD
Specifications	Specifications	Specifications	Specifications	Specifications	Specifications	Specifications	Specifications	Specifications	Specifications

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Part Name	Knurled Knob - Stainless Steel SUS316L Equivalent	Knurled Knob - Stainless Steel SUS316L Equivalent	Knurled Knob - Stainless Steel Black	Knurled Knob	Knurled Knob	Knurled Knob	Knurled Knob	Knurled Knob - Stainless Steel Black	Captive Knurled Knob
Part Number	KNML-12-M3-6	KNML-16-M4-6	KNMS-16-M4-6-BK	KUM-12-M3-6	KUM-16-M4-6	KUMS-12-M3-6	KUMS-16-M4-6	KUMS-16-M4-6-BK	KNM-20-M5-10-SC
Feature	Equivalent to SUS316L	Equivalent to SUS316L	Reflection Resistance Corrosion Resistance	Flat Type	Flat Type	Flat Type	Flat Type	Reflection Resistance Corrosion Resistance	Captive
Price	9.10 USD	12.87 USD	14.55 USD	4.02 USD	5.74 USD	8.05 USD	9.99 USD	14.55 USD	7.59 USD
Shape	Knurled	Knurled	Knurled	Knurled	Knurled	Knurled	Knurled	Knurled	Knurled
Type	Male Screw	Male Screw	Male Screw	Male Screw	Male Screw	Male Screw	Male Screw	Male Screw	Male Screw
Thread Part Material	Stainless Steel	Stainless Steel	Stainless Steel	Steel	Steel	Stainless Steel	Stainless Steel	Stainless Steel	Steel
Thread Size	M3	M4	M4	M3	M4	M3	M4	M4	M5
Surface	-	-	BK	CR	CR	-	-	BK	CR
CAD	CAD	CAD	CAD	CAD	CAD	CAD	CAD	CAD	CAD
Specifications	Specifications	Specifications	Specifications	Specifications	Specifications	Specifications	Specifications	Specifications	Specifications

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Part Name	Captive Knurled Knob	Captive Knurled Knob	Captive Knurled Knob	Captive Knurled Knob	Captive Knurled Knob	Captive Knurled Knob - Stainless Steel SUS316L Equivalent	Captive Knurled Knob - Stainless Steel SUS316L Equivalent	Captive Knurled Knob - Stainless Steel SUS316L Equivalent	Captive Knurled Knob
Part Number	KNM-20-M5-16-SC	KNM-20-M5-20-SC	KNMS-20-M5-10-SC	KNMS-20-M5-16-SC	KNMS-20-M5-20-SC	KNML-20-M5-10-SC	KNML-20-M5-16-SC	KNML-20-M5-20-SC	KUM-20-M5-10-SC
Feature	Captive	Captive	Captive SUS304	Captive SUS304	Captive SUS304	Captive SUS316L Equivalent	Captive SUS316L Equivalent	Captive SUS316L Equivalent	Captive
Price	7.59 USD	7.59 USD	13.14 USD	13.14 USD	13.14 USD	19.22 USD	19.22 USD	19.22 USD	7.59 USD
Shape	Knurled	Knurled	Knurled	Knurled	Knurled	Knurled	Knurled	Knurled	Knurled
Type	Male Screw	Male Screw	Male Screw	Male Screw	Male Screw	Male Screw	Male Screw	Male Screw	Male Screw
Thread Part Material	Steel	Steel	Stainless Steel	Stainless Steel	Stainless Steel	Stainless Steel	Stainless Steel	Stainless Steel	Steel
Thread Size	M5	M5	M5	M5	M5	M5	M5	M5	M5
Surface	CR	CR	-	-	-	-	-	-	CR
CAD	CAD	CAD	CAD	CAD	CAD	CAD	CAD	CAD	CAD
Specifications	Specifications	Specifications	Specifications	Specifications	Specifications	Specifications	Specifications	Specifications	Specifications

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Part Name	Captive Knurled Knob	Captive Knurled Knob	Captive Knurled Knobs	Captive Knurled Knobs	Captive Knurled Knobs	Captive Wing Knob	Captive Wing Knob
Part Number	KUM-20-M5-16-SC	KUM-20-M5-20-SC	KUMS-20-M5-10-SC	KUMS-20-M5-16-SC	KUMS-20-M5-20-SC	KWBS-21-M5-15-SC	KWBS-21-M5-20-SC
Feature	Captive	Captive	Captive SUS304	Captive SUS304	Captive SUS304	-	-
Price	7.59 USD	7.59 USD	13.19 USD	13.19 USD	13.19 USD	8.84 USD	8.84 USD
Shape	Knurled	Knurled	Knurled	Knurled	Knurled	Round	Round
Type	Male Screw	Male Screw	Male Screw	Male Screw	Male Screw	Male Screw	Male Screw
Thread Part Material	Steel	Steel	Stainless Steel	Stainless Steel	Stainless Steel	Stainless Steel	Stainless Steel
Thread Size	M5	M5	M5	M5	M5	M5	M5
Surface	CR	CR	CR	CR	CR	-	-
CAD	CAD	CAD	CAD	CAD	CAD	CAD	CAD
Specifications	Specifications	Specifications	Specifications	Specifications	Specifications	Specifications	Specifications

Latest

What Are Knobs? Functions, Types, Features, Applications and More

Description of Machine elements for Designers Knobs Edition page. We introduce here what knobs are, the advantages of their use, various usage examples, and their types and characteristics.

CE-marked components which prevent foreign matter contamination are required 【Safety / precautionary measures】

Introducing components with a captive mechanism.

Products conforming to SEMI standards are required【Safety Measures/Precautionary Measures】

Introducing our abundant lineup of SEMI standard compliant products.

Hints for correctly using NBK products: Metal Super Knob

Introducing usage methods for metal knobs that can be installed just by inserting commercial hex bolts.

Helpful Resources

No. 2: Vacuum environments

SEMS Screws: Efficiency and Convenience in Fastening

What are Socket Head Cap Screws (Bolts) ?

Miniature Screws/Precision Screws Lineup List

Micro Screws: M0.6 (S0.6) to M2.6 Lineup

Customization

Flexus【Muilti-Functional Machined Slotted Springs】

Designs and Examples of What NBK Can Create

Ball Rollers : Characteristics

Custom made

Cleanroom Wash / Cleanroom Packing Service

Screw Length Adjustment Service

Couplings Bore and Keyway Additional Modification Service

Captive Processing Service

Screw combination service

Select the best screws for your needs

No. 6: Thermal Cycling

Washer fall-out prevention is required 【Workability/Maintenance】

Monitors need to be movable with one touch in accordance with the worker's height or the nature of the work【Improved productivity/workability】

Simple positioning with vertical axes is needed 【Workability / maintenance】

Screw Size Chart: Comprehensive Guide to Metric Dimensions

Hexalobular Internal Driving Feature for Bolts and Screws

Unified Coarse Screw Threads/Unified Fine Screw Threads

Vol. 12 Back to Basics Series! Screw Reference Dimensions

Slip Torque of Coupling – Set Screw Type

Auto-Positioning Units Frequently Asked Questions (FAQ)

Coupling and Single-axis Actuator Assembly Method

Hints for correctly using NBK products: Quick Positioning Brackets

Hints for correctly using NBK products: Captive Washer for Pull

Hints for correctly using NBK products: Metal Super Knob

Procedure of Selection

Choosing the most suitable coupling

Choosing the most suitable coupling

Procedure of Selection (Actuator)

Procedure of Selection

No. 2: Vacuum environments

No. 6: Thermal Cycling

Washer fall-out prevention is required 【Workability/Maintenance】

Monitors need to be movable with one touch in accordance with the worker's height or the nature of the work【Improved productivity/workability】

Simple positioning with vertical axes is needed 【Workability / maintenance】

No. 2: Vacuum environments

SEMS Screws: Efficiency and Convenience in Fastening

What are Captive Bolts (Screws)? Introduction of the NBK Captive Series

Description of Tamper Resistant Screws & Security Screws (Bolts) for the Engineers

What are Hex Nuts?

What is Specific Strength? A new index for weight reduction of equipment 【Smaller and Lighter】

Preventing gaps between the sheet and screw when fastening thin sheets

Screws must be protected from chemicals 【Energy-saving / reduced work-hours】

Higher torque and Lower price.

NBK SPECIAL SCREWS

What are Couplings? Explanation of Coupling Types and Characteristics

Select Based on Application

Vol.6 Varieties of Screws "Beyond" SUS

Solving common issues with Semiconductor Manufacturing Equipment（Pre-Process）

A new generation of disk couplings

Miniature Screws/Precision Screws Lineup List

Micro Screws: M0.6 (S0.6) to M2.6 Lineup

No. 6: Thermal Cycling

What is Specific Strength? A new index for weight reduction of equipment 【Smaller and Lighter】

What are low profile screws? Find advantages, disadvantages, and usage examples explained here!

What makes our custom screws special

Customization

NBK SPECIAL SCREWS

Flexus【Muilti-Functional Machined Slotted Springs】

Designs and Examples of What NBK Can Create

No. 6: Thermal Cycling

Select Based on Application

What is Specific Strength? A new index for weight reduction of equipment 【Smaller and Lighter】

No. 5: Solving common problems inside equipment

Solving common issues with Semiconductor Manufacturing Equipment（Pre-Process）

Select the best screws for your needs

No. 2: Vacuum environments

What are Socket Head Cap Screws (Bolts) ?

Miniature Screws/Precision Screws Lineup List

Micro Screws: M0.6 (S0.6) to M2.6 Lineup

Select the best screws for your needs

No. 2: Vacuum environments

What are Socket Head Cap Screws (Bolts) ?

Miniature Screws/Precision Screws Lineup List

Micro Screws: M0.6 (S0.6) to M2.6 Lineup

Vol.6　Varieties of Screws "Beyond" SUS

Vol.1　What is Seizing (Galling)?

Vol.4　What are washers used for?

Vol.7　Screw Tightening Control Methods