Screws with Special Surface Treatment

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Number	SNH-GJ	SHN-GJ	SWA-F-GJ	SNSL-PN	SNSS-FC	SNSS-MO	SNSS-BK	SNSS-RY	SNSS-TF
Name	Hex Head Screws (Galvanic Corrosion Prevention Treatment)	Hex Nuts (Galvanic Corrosion Prevention Treatment)	Washers (Galvanic Corrosion Prevention Treatment)	Hex Socket Head Cap Screws - SUS316L / Surface hardening treatment	Hex Socket Head Cap Screws - Fluorine Coating	Hex Socket Head Cap Screws - MoS₂ Coating	Hex Socket Head Cap Screws - Super Black	Hex Socket Head Cap Screws - Low Temperature Black Chrome	Hex Socket Head Cap Screws - Teflon Coating
Material	Steel	Steel	Steel	SUS316L	SUSXM7 (Equivalent to SUS304)	SUSXM7 (Equivalent to SUS304)	SUSXM7 (Equivalent to SUS304)	SUSXM7 (Equivalent to SUS304)	SUSXM7 (Equivalent to SUS304)
Surface Treatment	Galvanic Corrosion Prevention Treatment	Galvanic Corrosion Prevention Treatment	Galvanic Corrosion Prevention Treatment	-	Fluorine coating	Molybdenum disulfide coating	Stainless Steel Black	Low temperature black chrome treatment	Teflon coating
Size	M5 ～ M16	M5 ～ M16	-	M3 ～ M8	M3 ～ M10	M3 ～ M10	M2 ～ M10	M3 ～ M10	M3 ～ M10
Feature	Galvanic Corrosion Prevention	Galvanic Corrosion Prevention	Galvanic Corrosion Prevention	Seizing Prevention	Seizing prevention	Seizing prevention	Reflection Resistance Corrosion Resistance	Chemical Resistance Reflection Resistance Seizing Prevention	Chemical Resistance Seizing Prevention

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Number	SNSS-AUS	SNS-EL	SNHS-HTF
Name	Hex Socket Head Cap Screws - Gold Coating	Hex Socket Head Cap Screws - Electroless Nickel Plating	Hex Head Screws - Teflon Coating for Head
Material	SUSXM7 (Equivalent to SUS304)	Steel	SUSXM7 (Equivalent to SUS304)
Surface Treatment	Gold Coating (Gold Purity: 99.99 wt%)	Electroless nickel plating	Teflon Coating (Head Only)
Size	M3 ～ M10	M3 ～ M10	M3 ～ M8
Feature	Seizing prevention	High Strength	Chemical Resistance

Latest

Small screws are required 【Compact / lightweight】

Introducing a rich lineup of miniature screws and precision screws.

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

Introducing screws using stainless steel/titanium screws with strength equivalent to steel for space and weight saving.

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

Introducing screws with excellent chemical resistance and screws with head coatings.

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

Introducing a product for holding screws with excellent workability.

Helpful Resources

NEW！Wireless Positioning Units

Four advantages Wireless Positioning Units

The Wireless Positioning Unit dramatically improves setup work

A new generation of disk couplings

The Key to Increased Productivity! Understand the Secret of Reduced Stabilization Time in 2 Minutes

Designs and Examples of What NBK Can Create

Custom made

Special specifications

Customization & Environmental Report

Plungers : Related Information

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】

Shaft radial load must be suppressed 【Automation / robots / motorization】

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

Vol. 12 Back to Basics Series! Screw Reference Dimensions

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

Vol.4 What are washers used for?

Vol.2 Explaining the Vocabulary of Screws

Titanium Property

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

Only takes two minutes to understand!Wireless Positioning Units (EPU-200 EPC-200) Installation/Connection Method

Choosing the most suitable coupling

Choosing the most suitable coupling

Procedure of Selection

Procedure of Selection (Actuator)

Procedure of Selection

How to Check the Screw Tightening Torque

How to Adjust the Alignment

Shaft Insertion Amount When Assembling the Coupling and Single-axis Actuator

Mounting and Maintenance

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】

Stainless steel screws must be prevented from galling / seizing 【Workability / maintenance】

Removing stripped screws 【Workability / maintenance】

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】

Improvement points for FA Devices【Control Design】

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】

Improvement points for FA Devices【Drive Design】

Improvement points for FA Devices【Control Design】

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

Solving common issues with Machine Tools（Machining Center）

Solving common issues with Medical Equipment（Biochemical Analyzer）

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】

Improvement points for FA Devices【Control Design】

Improved coupling insulation properties are required 【Compact / lightweight】

NBK SPECIAL SCREWS

Designs and Examples of What NBK Can Create

Custom made

Special specifications

Customization & Environmental Report

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】

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

Improvement points for FA Devices【Unit Design】

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】

Shaft radial load must be suppressed 【Automation / robots / motorization】

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

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】

Shaft radial load must be suppressed 【Automation / robots / motorization】

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

Rotation shaft vibration must be suppressed 【Productivity increase】

Vol.4　What are washers used for?

Vol.2　Explaining the Vocabulary of Screws

Vol. 9　Sudden Bolt "Delayed Fracture"