Anti-Galling (Anti-Seize)

These screws have surface treatments that prevent galling during tightening.
By reducing the friction coefficient of the thread surfaces with plating or coatings, the required axial force can be achieved with lower tightening torque.
As a result, he generation of friction heat during tightening is minimized, effectively preventing galling and seizing.
There are surface-hardened screws that do not cause contamination, as well as screws with gold, fluorine, MoS2, and PTFE coatings.

GallingSeizingPrevention1en1

Image
Part Name	Hex socket Head Cap Screws with Ventilation Hole / Surface Hardening 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 - Low Temperature Black Chrome	Hex Socket Head Cap Screws - PTFE Coating	Hex Socket Head Cap Screws - Gold Coating	Socket Head Cap Captive Screws - Fluorine Coating	Socket Head Cap Captive Screws - Low Temperature Black Chrome Treatment
Part Number	SVSL-PN	SNSL-PN	SNSS-FC	SNSS-MO	SNSS-RY	SNSS-TF	SNSS-AUS	SSC-FC	SSC-RY
Feature	Corrosion Resistance / Seizing prevention	Seizing Prevention	Seizing prevention	Seizing prevention	Chemical Resistance Reflection Resistance Seizing Prevention	Chemical Resistance Seizing Prevention	Seizing prevention	Seizing Prevention Captive/Loss Prevention	Chemical Resistance Anti-reflection Seizing Prevention Captive/Loss Prevention
Material	SUS316L	SUS316L	SUSXM7 (Equivalent to SUS304)	SUSXM7 (Equivalent to SUS304)	SUSXM7 (Equivalent to SUS304)	SUSXM7 (Equivalent to SUS304)	SUSXM7 (Equivalent to SUS304)	SUSXM7 (Equivalent to SUS304)	SUSXM7 (Equivalent to SUS304)
Surface Treatment	Surface hardening treatment	Surface hardening treatment	Fluorine coating	Molybdenum disulfide coating	Low temperature black chrome treatment	PTFE coating	Gold Coating (Gold Purity: 99.99 wt%)	Fluorine coating	Low temperature black chrome treatment
Thread Size	M3 ～ M8	M3 ～ M8	M3 ～ M10	M3 ～ M10	M3 ～ M10	M3 ～ M10	M3 ～ M10	M3 ～ M8	M3 ～ M8
Operating Temperature (℃)	-	-	-	-	-	-	-	-	-
CAD	CAD	CAD	CAD	CAD	CAD	CAD	CAD	CAD	CAD
Specifications	Specifications	Specifications	Specifications	Specifications	Specifications	Specifications	Specifications	Specifications	Specifications
List	SVSL-M3-PN SVSL-M4-PN SVSL-M5-PN SVSL-M6-PN SVSL-M8-PN	SNSL-M3-PN SNSL-M4-PN SNSL-M5-PN SNSL-M6-PN SNSL-M8-PN	SNSS-M10-FC SNSS-M3-FC SNSS-M4-FC SNSS-M5-FC SNSS-M6-FC SNSS-M8-FC	SNSS-M10-MO SNSS-M3-MO SNSS-M4-MO SNSS-M5-MO SNSS-M6-MO SNSS-M8-MO	SNSS-M10-RY SNSS-M3-RY SNSS-M4-RY SNSS-M5-RY SNSS-M6-RY SNSS-M8-RY	SNSS-M10-TF SNSS-M3-TF SNSS-M4-TF SNSS-M5-TF SNSS-M6-TF SNSS-M8-TF	SNSS-M10-AUS SNSS-M3-AUS SNSS-M4-AUS SNSS-M5-AUS SNSS-M6-AUS SNSS-M8-AUS	SSC-M3-FC SSC-M4-FC SSC-M5-FC SSC-M6-FC SSC-M8-FC	SSC-M3-RY SSC-M4-RY SSC-M5-RY SSC-M6-RY SSC-M8-RY

Image
Part Name	Socket Head Cap Captive Screws - PTFE Coating	Socket Head Cap Screws with Small Head - Fluorine Coating	Socket Head Cap Screws with Small Head - MoS₂ Coating	Socket Head Cap Screws with Ultra Low Small Head - Fluorine Coating	Socket Head Cap Screws with Ultra Low Small Head - MoS₂ Coating
Part Number	SSC-TF	SNSS-SD-FC	SNSS-SD-MO	SSHS-SD-FC	SSHS-SD-MO
Feature	Chemical Resistance Seizing Prevention Captive/Loss Prevention	Small Head Space-saving Seizing Prevention	Small Head Space-saving Seizing Prevention	Special Low Profile Small Head Space-saving Seizing Prevention	Special Low Profile Small Head Space-saving Seizing Prevention
Material	SUSXM7 (Equivalent to SUS304)	SUSXM7 (Equivalent to SUS304)	SUSXM7 (Equivalent to SUS304)	SUSXM7 (Equivalent to SUS304)	SUSXM7 (Equivalent to SUS304)
Surface Treatment	PTFE coating	Fluorine coating	Molybdenum disulfide coating	Fluorine coating	Molybdenum disulfide coating
Thread Size	M3 ～ M8	M3 ～ M10	M3 ～ M10	M3 ～ M10	M3 ～ M10
Operating Temperature (℃)	-	-	-	-	-
CAD	CAD	CAD	CAD	CAD	CAD
Specifications	Specifications	Specifications	Specifications	Specifications	Specifications
List	SSC-M3-TF SSC-M4-TF SSC-M5-TF SSC-M6-TF SSC-M8-TF	SNSS-M10-SD-FC SNSS-M3-SD-FC SNSS-M4-SD-FC SNSS-M5-SD-FC SNSS-M6-SD-FC SNSS-M8-SD-FC	SNSS-M10-SD-MO SNSS-M3-SD-MO SNSS-M4-SD-MO SNSS-M5-SD-MO SNSS-M6-SD-MO SNSS-M8-SD-MO	SSHS-M10-SD-FC SSHS-M3-SD-FC SSHS-M4-SD-FC SSHS-M5-SD-FC SSHS-M6-SD-FC SSHS-M8-SD-FC	SSHS-M10-SD-MO SSHS-M3-SD-MO SSHS-M4-SD-MO SSHS-M5-SD-MO SSHS-M6-SD-MO SSHS-M8-SD-MO

Latest

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.

Fastening Screws in Areas with Cumulative Pitch Misalignment of Large Panels

Discover how specially processed screws solved challenges with large equipment panels!

No. 8: Preventing Part Fall-out

Are you struggling with screw or washer fall-out during equipment assembly or maintenance?
Here we introduce products that can be used to prevent part fall-out.

What are Captive Screws? Introduction of the NBK Captive Series

NBK has standardized products for fall prevention of parts in the knob, pull and e-nedzi.com (special screw) categories. Use NBK's Captive Series for food machinery, packaging machinery and chemical manufacturing equipment that require CE Marking compatibility and measures against contamination.

Helpful Resources

No. 8: Preventing Part Fall-out

What are Captive Screws? Introduction of the NBK Captive Series

What is a Linear Guide Stopper? Introduction to Types and Features!

What are Washer-Integrated Screws (SEMS Screws)?An Explanation of Standards and Features

Magnetic shield (permalloy shield) must be fixed

Customization

Flexus【Muilti-Functional Machined Slotted Springs】

Designs and Examples of What NBK Can Create

Ball Rollers : Characteristics

Custom made

Couplings Bore and Keyway Additional Modification Service

Captive Processing Service

Cleanroom Wash / Cleanroom Packing Service

Screw Length Adjustment Service

Screw combination service

Vol. 13 Explaining the Rust Source "Galvanic Corrosion"

Fastening Screws in Areas with Cumulative Pitch Misalignment of Large Panels

Select the best screws for your needs

Surface-mount technology (SMT) line width changeover automation cuts workload by about 130 minutes per month.

Preventing gaps between the sheet and screw when fastening thin sheets

Plastic Screw Property

Chemical Resistance of Chemical-proof Screws

Property of Special Material Screws

Titanium Property

Screw Standards and Technical Information

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

Choosing the most suitable coupling

Choosing the most suitable coupling

Procedure of Selection (Actuator)

Procedure of Selection

Procedure of Selection

Fastening Screws in Areas with Cumulative Pitch Misalignment of Large Panels

No. 8: Preventing Part Fall-out

What are Captive Screws? Introduction of the NBK Captive Series

Surface-mount technology (SMT) line width changeover automation cuts workload by about 130 minutes per month.

Preventing gaps between the sheet and screw when fastening thin sheets

Vol. 13 Explaining the Rust Source "Galvanic Corrosion"

What are Captive Screws? Introduction of the NBK Captive Series

What are Washer-Integrated Screws (SEMS Screws)?An Explanation of Standards and Features

Magnetic shield (permalloy shield) must be fixed

Preventing lever fragments from contaminating food machinery.

Preventing gaps between the sheet and screw when fastening thin sheets

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

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

Higher torque and Lower price.

NBK SPECIAL SCREWS

Vol.6 Varieties of Screws "Beyond" SUS

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

High-Gain Rubber Type Coupling XG2

A new generation of disk couplings

The Key to Increased Productivity! The Secret of Reduced Stabilization Time (Full Version)

Vol.6 Varieties of Screws "Beyond" SUS

No. ９: Increasing Throughput

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

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

What are clamp levers? Here we explain the characteristics and usage methods that help streamline screw tightening!

We can make a screw like this one

Customization

NBK SPECIAL SCREWS

Flexus【Muilti-Functional Machined Slotted Springs】

Designs and Examples of What NBK Can Create

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

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

No. 6: Thermal Cycling

Higher torque and Lower price.

A new generation of disk couplings

Vol. 13 Explaining the Rust Source "Galvanic Corrosion"

What are Captive Screws? Introduction of the NBK Captive Series

Select the best screws for your needs

What is a Linear Guide Stopper? Introduction to Types and Features!

Vol.6 Varieties of Screws "Beyond" SUS

Vol. 13 Explaining the Rust Source "Galvanic Corrosion"

No. 8: Preventing Part Fall-out

What are Captive Screws? Introduction of the NBK Captive Series

Select the best screws for your needs

What is a Linear Guide Stopper? Introduction to Types and Features!

Vol.6　Varieties of Screws "Beyond" SUS

Vol.6　Varieties of Screws "Beyond" SUS

Vol.6　Varieties of Screws "Beyond" SUS

Line adjustment time for different bottle sizes was reduced by about half.
Automation Achieved for Over 20 Manual Adjustments.

Vol.6　Varieties of Screws "Beyond" SUS

Vol.6　Varieties of Screws "Beyond" SUS

Line adjustment time for different bottle sizes was reduced by about half.
Automation Achieved for Over 20 Manual Adjustments.

Vol.6　Varieties of Screws "Beyond" SUS