Functional Screws

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Part Number	SLEC-A	SLEC-A-EL	SLEC-B	SLEC-B-EL	SNSS-M-P	SCSS-VR	SCSS-VF	PAF	PAFS
Part Name	Clamping Screws with Eccentric Head	Clamping Screws with Eccentric Head	Clamping Screws（Guide type/Ferrosoferric Oxide Film）	Clamping Screws（Guide type/Electroless nickel plating）	Hex Socket Head Cap Screws - Fine Pitch Thread	Clamping Set Screws with Ventilation Hole	Clamping Set Screws with Ventilation Hole	Miniature Ball Plunger	Miniature Ball Plunger (Made of Stainless Steel)
Material	Steel	Steel	Steel	Steel	SUSXM7 (Equivalent to SUS304)	SUSXM7 (Equivalent to SUS304)	SUSXM7 (Equivalent to SUS304)	Steel	Stainless Steel
Surface Treatment	Ferrosoferric Oxide Film (Black)	Electroless nickel plating	Ferrosoferric Oxide Film (Black)	Electroless nickel plating	-	-	-	-	-
Thread Size	M3 ～ M12	M3 ～ M12	M3 ～ M8	M3 ～ M8	M4 ～ M12	M5 ～ M10	M5 ～ M10	M3 ～ M16	M3 ～ M16
Length	6 ～ 24	6 ～ 24	-	-	8 ～ 50	8.6 ～ 36.7	8 ～ 35	6 ～ 24	6 ～ 24
Feature	Standard Type High -Strength Fixing	Standard Type High -Strength Fixing	Guidance High -Strength Fixing	Guidance High -Strength Fixing	Locating LoosenessCountermeasure	For Fixing Full Ball	For Fixing Flat Ball	Good Cost Performance	Good Cost Performance

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Part Number	FP	MP	MPS	PSS	PSSS	PSP	PSP-N	PSPS	PSPS-N
Part Name	Miniature Ball Plunger - with Nylon Lock	Miniature Ball Plunger - with Nylon Lock	Miniature Ball Plunger (Made of Stainless Steel)	Small Plunger	Small Plunger	Short Stroke Plunger	Short Stroke Plunger	Short Stroke Plungers (Made of Stainless Steel)	Short Stroke Plungers (Made of Stainless Steel)
Material	Steel	Stainless Steel	Stainless Steel	-	-	Steel	Steel	Stainless Steel	Stainless Steel
Surface Treatment	-	-	-	Ferrosoferric Oxide Film (Black)	-	-	-	-	-
Thread Size	M2 ～ M16	M2 ～ M16	M2 ～ M16	M4 ～ M16	M4 ～ M16	M3 ～ M12	M5 ～ M12	M4 ～ M12	M4 ～ M12
Length	5 ～ 25	5 ～ 25	5 ～ 25	9 ～ 22	9 ～ 22	10 ～ 43	20 ～ 30	15 ～ 30	15 ～ 30
Feature	Light load Spinning ball	Heavy-loaded Spinning ball	Spinning ball	Small Plunger	Small Plunger	Pin Plunger with Vibration Resistant Treatment	Light load	Pin Plungers	Pin Material Plastic

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Part Number	PLP	SCS-R	SCS-R(INCH)	SCS-F-R	SCSS-R	SCSS-R(INCH)	SCS-N	SCS-BR	SCSS-CE
Part Name	Long Stroke Plunger	Clamping Screw - Full Ball	Clamping Screws - Full Ball (Inch Thread)	Clamping Screw (Fine Screw Thread) - Full Ball	Clamping Screw - Full Ball	Clamping Screws - Full Ball (Inch Thread)	Clamping Screw - Special Material Full Ball	Clamping Screw - Special Material Full Ball	Clamping Screw - Special Material Full Ball
Material	Steel	Steel	Steel	Steel	Stainless Steel	Stainless Steel	Steel	Steel	Stainless Steel
Surface Treatment	-	Ferrosoferric Oxide Film (Black)	Ferrosoferric Oxide Film (Black)	Ferrosoferric Oxide Film (Black)	-	-	Ferrosoferric Oxide Film (Black)	Ferrosoferric Oxide Film (Black)	-
Thread Size	M16 ～ M30	M3 ～ M16	-	M6 ～ M12	M3 ～ M16	-	M3 ～ M6	M4 ～ M6	M4 ～ M12
Length	50 ～ 70	5.2 ～ 53.3	0.26 ～ 1.575	10.8 ～ 42	5.2 ～ 53.3	0.26 ～ 1.575	5.2 ～ 25.8	6.5 ～ 25.8	6.5 ～ 42
Feature	Long Stroke	Complete Ball Type	Full Ball Type Inch Thread	Fine Pitch Screw / Complete Ball Type	Complete Ball Type	Full Ball Type Inch Thread	Complete Ball Type Plastic Ball	Complete Ball Type Brass Ball	Complete Ball Type Ceramics Ball

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Part Number	SCS-F	SCS-F(INCH)	SCS-F-F	SCSS-F	SCSS-F(INCH)	SCS-FB	SCSS-FB	SCS-GB	SCSS-GB
Part Name	Clamping Screw - Flat Ball	Clamping Screws - Flat Ball (Inch Thread)	Clamping Screw (Fine Screw Thread) - Flat Ball	Clamping Screw - Flat Ball	Clamping Screws - Flat Ball (Inch Thread)	Clamping Screw - Flat Ball - with Reversal Protection Mechanism	Clamping Screw - Flat Ball - with Reversal Protection Mechanism	Clamping Screw - Indented Ball - with Reversal Protection Mechanism	Clamping Screw - Indented Ball - with Reversal Protection Mechanism
Material	Steel	Steel	Steel	Stainless Steel	Stainless Steel	Steel	Stainless Steel	Steel	Stainless Steel
Surface Treatment	Ferrosoferric Oxide Film (Black)	Ferrosoferric Oxide Film (Black)	Ferrosoferric Oxide Film (Black)	-	-	Ferrosoferric Oxide Film (Black)	-	Ferrosoferric Oxide Film (Black)	-
Thread Size	M4 ～ M16	-	M6 ～ M12	M4 ～ M16	-	M4 ～ M16	M4 ～ M16	M4 ～ M16	M4 ～ M16
Length	6 ～ 50	3/8" ～ 1-1/2"	10 ～ 40	6 ～ 50	3/8" ～ 1-1/2"	6 ～ 50	6 ～ 50	6 ～ 50	6 ～ 50
Feature	Flat Ball Type	Flat Ball Type Inch Thread	Fine Pitch Screw / Flat Ball Type	Flat Ball Type	Flat Ball Type Inch Thread	Flat Ball Limited Swivel Type	Flat Ball Limited Swivel Type	Ratchet Ball Limited Swivel Type	Ratchet Ball Limited Swivel Type

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Part Number	SCB-R	SCB-R(INCH)	SCBS-R	SCBS-R(INCH)	SCBS-CE	SCB-F	SCB-F(INCH)	SCBS-F	SCBS-F(INCH)
Part Name	Clamping Bolt - Full Ball	Clamping Bolts - Full Ball (Inch Thread)	Clamping Bolt - Full Ball	Clamping Bolts - Full Ball (Inch Thread)	Clamping Bolt - Ceramic Ball	Clamping Bolt - Flat Ball	Clamping Bolts - Flat Ball (Inch Thread)	Clamping Bolt - Flat Ball	Clamping Bolts - Flat Ball (Inch Thread)
Material	Steel	Steel	Stainless Steel	Stainless Steel	Stainless Steel	Steel	Steel	Stainless Steel	Stainless Steel
Surface Treatment	Ferrosoferric Oxide Film (Black)	Ferrosoferric Oxide Film (Black)	-	-	-	Ferrosoferric Oxide Film (Black)	Ferrosoferric Oxide Film (Black)	-	-
Thread Size	M4 ～ M16	-	M4 ～ M16	-	M4 ～ M12	M4 ～ M16	-	M4 ～ M16	-
Length	10.5 ～ 83.3	0.52 ～ 2.075	10.5 ～ 83.3	0.52 ～ 2.075	10.5 ～ 82	10 ～ 80	1/2" ～ 2"	10 ～ 80	1/2" ～ 2"
Feature	Complete Ball Type	Full Ball Type Inch Thread	Complete Ball Type	Full Ball Type Inch Thread	Complete Ball Type Ceramics Ball	Flat Ball Type	Flat Ball Type Inch Thread	Flat Ball Type	Flat Ball Type Inch Thread

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Part Number	SCB-GB	SCBS-GB	SCB-FB	SCBS-FB	SADS-LC	SADS-RF	SADS-SD	SAD-FT	SADS-FT
Part Name	Clamping Bolt - Knurled Ball - with Reversal Prevention Mechanism	Clamping Bolt - Knurled Ball - with Reversal Prevention Mechanism	Clamping Bolt - Flat Ball - with Reversal Prevention Mechanism	Clamping Bolt - Flat Ball - with Reversal Prevention Mechanism	Screw Adaptor - Left-handed Threaded Type	Screw Adaptor - Fine Threaded Type	Screw Adaptor - Thread Size Conversion Type	Screw Adaptor - Long Threaded Type	Screw Adaptor - Long Threaded Type
Material	Steel	Stainless Steel	Steel	Stainless Steel	Stainless Steel	Stainless Steel	Stainless Steel	Steel	Stainless Steel
Surface Treatment	Ferrosoferric Oxide Film (Black)	-	Ferrosoferric Oxide Film (Black)	-	-	-	-	Trivalent chromate treatment	-
Thread Size	M4 ～ M16	M4 ～ M16	M4 ～ M16	M4 ～ M16	-	M4 ～ M10	M4 ～ M10	M4 ～ M10	M4 ～ M10
Length	10 ～ 80	10 ～ 80	10 ～ 80	10 ～ 80	12 ～ 80	12 ～ 80	12 ～ 80	40 ～ 120	40 ～ 120
Feature	Ratchet Ball Limited Swivel Type	Ratchet Ball Limited Swivel Type	Flat Ball Limited Swivel Type	Flat Ball Limited Swivel Type	Left Hand Thread Type	Fine Screw Threaded Type	Thread Size Conversion Type	Continuous Thread Type	Continuous Thread Type

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Part Number	SUB	SUS	SSB-A	SSB-B	SSBS-B	SAN-B	SANS-B	SPM	SAT
Part Name	Stopper Bolt with Urethane Pad	Stopper Screw with Urethane Pad	Stopper Bolt - Tip Sphere Type	Stopper Bolt - Head Sphere Type	Stopper Bolt - Head Sphere Type	Stopper Screw	Stopper Screw	Stop Pin	Adjust Bolt
Material	Steel	Steel	Steel	Steel	Stainless Steel	Steel	Stainless Steel	Steel	Steel
Surface Treatment	Nickel plating	Nickel plating	Ferrosoferric Oxide Film (Black)	Ferrosoferric Oxide Film (Black)	-	Trivalent chromate treatment	-	Trivalent chromate treatment	Nickel plating
Thread Size	M4 ～ M10	M4 ～ M10	M4 ～ M16	M3 ～ M16	M6 ～ M8	M4 ～ M16	M4 ～ M16	M3 ～ M12	M6 ～ M12
Length	15 ～ 50	10 ～ 60	10 ～ 80	10 ～ 80	30 ～ 50	20 ～ 100	20 ～ 100	5 ～ 16	20 ～ 60
Feature	Urethane Pad	Urethane Pad	Positioning at a tip of Screw Sphericity Area is Heat-hardened	Positioning at Hex Head Hex Head is Heat-hardened	Positioning at Hex Head Hex Head is Heat-hardened	Fine Pitch Screw Sphericity Area is Heat-hardened	Fine Pitch Screw Sphericity Area is Heat-hardened	Used in combination with SSB/SAN Hex Head is Heat-hardened	Used in combination with SAK

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Part Number	SRC	SRCS	SRF	SRFS	SHS	STR	STRS	STB	SJN
Part Name	Roller Chain Bolt	Roller Chain Bolt	Roller Chain Nut	Roller Chain Nut	Hexagon Stud Bolt	Turn Buckle - Dedicated to Roller Chain	Turn Buckle - Dedicated to Roller Chain	Turn Buckle - General Purpose Male Screw Type	Joint Nut
Material	Steel	Stainless Steel	Steel	Stainless Steel	Steel	Steel	Stainless Steel	Steel	Steel
Surface Treatment	Ferrosoferric Oxide Film (Black)	-	Ferrosoferric Oxide Film (Black)	-	Ferrosoferric Oxide Film (Black)	Ferrosoferric Oxide Film (Black)	-	Ferrosoferric Oxide Film (Black)	Ferrosoferric Oxide Film (Black)
Thread Size	M2.5 ～ M20	M2.5 ～ M20	M6 ～ M20	M6 ～ M16	M4 ～ M16	-	-	M4 ～ M16	M2.5 ～ M20
Length	17.2 ～ 117	17.2 ～ 117	24 ～ 65	24 ～ 52	29.2 ～ 105	-	-	-	20 ～ 105
Feature	Standardizing Right and Left Screw	Standardizing Right and Left Screw	Nut Type	Nut Type	Standardizing Right and Left Screw	Adjusting Chain Tension	Adjusting Chain Tension	Adjusting Chain Tension and Position of Slide	Used in combination with SRC

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Part Number	SJNS	SPOS-A	SPOS-B	SHA-EL	SHAS	SHB-EL	SHBS
Part Name	Joint Nut	Spring Posts	Spring Posts	Hexagon Post	Hexagon Post	Hexagon Post	Hexagon Post
Material	Stainless Steel	Stainless Steel	Stainless Steel	Steel	Stainless Steel	Steel	Stainless Steel
Surface Treatment	-	-	-	Electroless nickel plating	-	Electroless nickel plating	-
Thread Size	M2.5 ～ M20	M3 ～ M6	M3 ～ M12	M3 ～ M8	M3 ～ M8	M3 ～ M8	M3 ～ M8
Length	20 ～ 105	10 ～ 40	15 ～ 70	15 ～ 150	15 ～ 150	15 ～ 150	15 ～ 150
Feature	Used in combination with SRCS	For Extension Spring,Bore type	For Extension Spring,Groove type	Male Screw and Female Screw on the Opposite side	Male Screw and Female Screw on the Opposite side	Female Screw on Both side	Female Screw on Both side

Related products

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Part Number	PST	PSTS	PPW	PHL	BB	PJP	PJA	PJB	SBN
Part Name	Spring Stop	Spring Stop	Wrench for Pin Plunger	Plunger Holder	Ball Button	Locating Pin	Bushing for Locating Pin - Straight Type	Bushing for Locating Pin - Flange Type	Locating Block
Material	-	-	-	-	-	-	-	-	-
Feature	Positioning Stopper	Positioning Stopper	Dedicated Wrench	Holder for use with Plunger	Used in combination with Plunger For Heavy Load	For Locating Parallel Pin	Used in combination with PJP	Used in combination with PJP	For fixing SSB

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Part Number	SAK-A	SAK-B
Part Name	Block for Adjust Bolt	Block for Adjust Bolt
Material	-	-
Feature	Used in combination with SAT	Used in combination with SAT

Latest

Screw combination service

For customers who want to change the threaded portion of a lever or knob

Have your chosen screw delivered attached to a lever/knob female screw product!

Captive Processing Service

For customers who want to prevent screws from falling off

We can add relief-cut treatment to screws to prevent them from falling off.

Vibration Resistant Treament Service

For customers who want to prevent screws from loosening

We will coat screws with microcapsules containing an adhesive agent to prevent loosening.

Cleanroom Wash / Cleanroom Packing Service

For customers who want to remove impurities and dust from the surface of products

We will cleanroom wash and cleanroom pack products as desired.

Although fastening objects using the axial force generated from tightening is the main role of screws (bolts), in actual work, I think there are many people who control the torque by tightening with a torque wrench, because it is difficult to directly monitor the axial force, and so guarantee the axial force that way. However, there are other methods of control for tightening screws (bolts). These include those with only slightly greater axial force variation than with a torque wrench. Today, Nedzigon will tell you all about them.

Vol. 13 Explaining the Rust Source "Galvanic Corrosion"

Have you ever been surprised by rust suddenly appearing on rust-resistant aluminum?
If this happens, the reduced strength resulting from the corrosion brings fears of possible damage.
This phenomenon is known as "galvanic corrosion". Today, I will explain this principle and how it can be handled.

Helpful Resources

Webinar: How can we speed up and reduce the cost of the Motion Control System with Shaft Couplings?

Handle Shaft Hole Processing Service

Scale Plate・Scale Sticker Cutting Service

Captive Processing Service

Vibration Resistant Treament Service

Flexus【Muilti-Functional Machined Slotted Springs】

Designs and Examples of What NBK Can Create

Custom made

Special specifications

Customization & Environmental Report

Handle Shaft Hole Processing Service

Scale Plate・Scale Sticker Cutting Service

Screw combination service

Captive Processing Service

Vibration Resistant Treament Service

Advancements in Servomotor Coupling Technology

The Anti-Vibration Coupling with High Rigidity

Rotation shaft vibration must be suppressed 【Productivity increase】

Small screws are required 【Compact / lightweight】

Screws with high strength are required even in environments where steel cannot be used 【Compact / lightweight】

Advancements in Servomotor Coupling Technology

The Anti-Vibration Coupling with High Rigidity

Plastic Screw Property

Vol. 12 Back to Basics Series! Screw Reference Dimensions

Vol. 11 Back to Basics Series! Introducing Various Types of Screws

Hints for correctly using NBK products: Retractable revolving grip

Hints for correctly using NBK products: Set Collars

Hints for correctly using NBK products: Captive Series (relief-cut thread)

Hints for correctly using NBK products: Scale Plate (Half scale)

Only takes two minutes to understand! Wireless Positioning Unit (EPU-100・ EPC-100) Connection/Operating Method

Choosing the most suitable coupling

Choosing the most suitable coupling

Procedure of Selection

Procedure of Selection (Actuator)

Procedure of Selection

Webinar: How can we speed up and reduce the cost of the Motion Control System with Shaft Couplings?

Flexus【Muilti-Functional Machined Slotted Springs】

Rotation shaft vibration must be suppressed 【Productivity increase】

Servomotor hunting must be suppressed 【Productivity increase】

Screws in places unreachable by hand need to be tightened 【Workability / maintenance】

Hints for correctly using NBK products: Retractable revolving grip

Countermeasures for screw loosening are required 【Safety / precautionary measures】

Theft / tampering countermeasures are required 【Safety / precautionary measures】

Improvement points for FA Devices【Drive Design】

Disturbances / vibrations must be suppressed 【Safety / precautionary measures】

Machining marks must be prevented 【Energy-saving / reduced work-hours】

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

Improvement points for FA Devices【Control Design】

Solving common issues with Machine Tools（Machining Center）

Improvement points for FA Devices【Unit Design】

Webinar: How can we speed up and reduce the cost of the Motion Control System with Shaft Couplings?

Flexus【Muilti-Functional Machined Slotted Springs】

Improvement points for FA Devices【Drive Design】

Improvement points for FA Devices【Control Design】

Solving common issues with Medical Equipment（CT scan / MRI）

Flexus【Muilti-Functional Machined Slotted Springs】

Hints for correctly using NBK products: Retractable revolving grip

Small screws are required 【Compact / lightweight】

Screws with high strength are required even in environments where steel cannot be used 【Compact / lightweight】

350% instantaneous maximum torque needs to be handled 【Compact / lightweight】

Flexus【Muilti-Functional Machined Slotted Springs】

NBK SPECIAL SCREWS

Designs and Examples of What NBK Can Create

Custom made

Special specifications

Webinar: How can we speed up and reduce the cost of the Motion Control System with Shaft Couplings?

Flexus【Muilti-Functional Machined Slotted Springs】

Improved reproducibility of the main column / reference position is required 【High rigidity / high accuracy】

Solving common issues with Machine Tools（Machining Center）

Stable speed control of the raising / lowering shaft is required 【High rigidity / high accuracy】

Webinar: How can we speed up and reduce the cost of the Motion Control System with Shaft Couplings?

Compact Powerful Magnet for FA - Terminology Description

Mounting and Maintenance

Flexus【Muilti-Functional Machined Slotted Springs】

Advancements in Servomotor Coupling Technology

Webinar: How can we speed up and reduce the cost of the Motion Control System with Shaft Couplings?

Flexus【Muilti-Functional Machined Slotted Springs】

Advancements in Servomotor Coupling Technology

The Anti-Vibration Coupling with High Rigidity

Plastic Screw Property

Vol. 9　Sudden Bolt "Delayed Fracture"