Special Screws

Select a product from category

Vented Screws, Vacuum Screws

Screws have gas ventilation holes for vacuum drawing of machines and have excellent corrosion resistance under vacuum environments.

Screws compatible with clean environments

Screws with cleanroom washing/cleanroom packing provided are available, along with screws compatible with clean environments such as those with ventilation holes.

Low Profile Screws, Small Head Screws

Compact head screws. Suitable for reducing the size of applications.

High Performance Stainless Steel Screws

High performance stainless steel screws have excellent strength, heat resistance, and corrosion resistance compared to standard stainless steel screws.

Titanium Screws

Screws made of titanium. They are lightweight, nonmagnetic, and chemically resistant.

Special Material Screws

Screws made of special materials such as Inconel, Molybdenum and Hastelloy to provide excellent heat, chemical, corrosion resistance.

Tools

A tool series dedicated for special applications.

Screws with Special Surface Treatment

Screws with surface treatment for seizing prevention and reflection resistance.

Micro Screws

Small-diameter screws lower than M2.6 size for precision instruments.

Captive Screws, Full Thread Screws

Screws for falling-out preventation and screws with full thread.

Functional Screws

Screws for fixing and locating clamping screws and ball plungers.

UNC Screws, UNF Screws

Screws for equipment and facilities that use inch-screw specifications.

Security screws, Tamper Resistant Screws

Screws which cannot be installed or removed easily with standard tools to prevent theft and tampering.

Hexalobular Screws

Screws with strength socket heads. For repeating installations and removals.

Plugs

Screw plugs for hydraulic and pneumatic machinery and equipment. Washers for loosening prevention.

Washers, Insert

Washers and inserts are available with a wide variety of outside diameters and thicknesses.

Plastic Screws

Various types of plastic screws made from materials such as VESPEL®, PEEK, and PTFE (Polytetrafluoroethylene).

Vibration Resistance

These screw components are highly effective for prevention of screw loosening due to vibration etc.

Screw Caps / Screw Covers

Protective caps for screw heads and tips.

Chemical Resistance Screws

Screws with special materials, surface treatments, and shapes for applications that require chemical resistance.

Socket Head Cap Screws

We have Socket Head Cap Screws with various kind of materials, surface treatments and characteristics.

Hex Head Screws

We have Hex Head Screws with various kind of materials, surface treatments and characteristics.

Sheet Metal Fasteners

Available to fix thin plate thickness over 0.1mm

SEMS Screws, Improved Fastening Efficiency Screws

Screws that do not require washers. This eliminates the need to incorporate washers and contributes to improved work efficiency.

Select a product from application

Purposes of use

Vacuum

Low Outgassing

Cleanroom

Chemical Resistance

High Strength

High Specific Strength

Heat Resistance

Galling & Seizing Prevention

Prevention of Screw Drive Damage

Anti-Reflective

Electrical Insulation

Non-Magnetic

Lightweight

Compact and Space-Saving

Increased Productivity

Captive

Loosening Prevention

Decoration

Fixing and Positioning

Conveyance

Selection Conditions

Material 2PC (Polycarbonate)

Image
Part Name	Plastic Screws - Phillips Cross Recessed Flat Head Machine Screws - PC	Plastic Screw - Cross Recessed Pan Head Machine Screws - PC	Plastic Screw - Hex Nuts / Washers - PC	Plastic Screw - Hex Nuts / Washers - PC	Plastic Screws - Hex Socket Head Cap Screws - PC	Plastic Screws - Hex Head Screws - PC	Plastic Screws - Threaded Rods - PC
Part Number	SPC-F	SPC-P	SPC-N	SPC-W	SPC-C	SPC-H	SPC-Z
Feature	Shock Resistance Weather Resistance	Shock Resistance Weather Resistance	Shock Resistance Weather Resistance	Shock Resistance Weather Resistance	Shock Resistance Weather Resistance	Shock Resistance Weather Resistance	Shock Resistance Weather Resistance
Material	PC	PC	PC	PC	PC	PC	PC
Surface Treatment	-	-	-	-	-	-	-
Thread Size	M2 ～ M8	M1.7 ～ M8	M2 ～ M8	M2 ～ M8	M3 ～ M8	M4 ～ M8	M6 ～ M8
CAD	CAD	CAD	CAD	CAD	CAD	CAD	CAD
Specifications	Specifications	Specifications	Specifications	Specifications	Specifications	Specifications	Specifications
List	SPC-M2.6-F SPC-M2-F SPC-M3-F SPC-M4-F SPC-M5-F SPC-M6-F SPC-M8-F	SPC-M1.7-P SPC-M2.6-P SPC-M2-P SPC-M3-P SPC-M4-P SPC-M5-P SPC-M6-P SPC-M8-P	SPC-M2.6-N SPC-M2-N SPC-M3-N SPC-M4-N SPC-M5-N SPC-M6-N SPC-M8-N	SPC-2.6-W SPC-2-W SPC-3-W SPC-4-W SPC-5-W SPC-6-W SPC-8-W	SPC-M3-C SPC-M4-C SPC-M5-C SPC-M6-C SPC-M8-C	SPC-M4-H SPC-M5-H SPC-M6-H SPC-M8-H	SPC-M6-Z SPC-M8-Z

Latest

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.

Select the best screws for your needs

This page helps to select a Product based on application needs. Vacuum, Low Outgas, Clean, Chemical Resistance, High Strength, Heat Resistance, etc. Vacuum, Low Outgas, Clean, Chemical Resistance, High Strength, Heat Resistance, etc

All you need to know about the roles and types of washers!

This page introduces washers. As well as a description of washers, the washer products handled by NBK are introduced.

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

Introducing components with a captive mechanism.

Helpful Resources

No. 8: Preventing Part Fall-out

All you need to know about the roles and types of washers!

What are Captive Screws? Introduction of the NBK Captive Series

Use the NBK Captive Screw Series to be comply with CE

No. 6: Thermal Cycling

Customization

Flexus

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

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

Only certain workersshould be able to remove screws 【Safety Measures/Precautionary Measures】

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

CE marking compliance is required【Workability/Maintenance】

General Tolerances

Hexagon Nuts

Key and Their Corresponding Keyways

Dimensions of Holes for Hexagon Socket Cap Screws

Vol.4 What are washers used for?

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

Hints for correctly using NBK products: Ball Plungers

Choosing the most suitable coupling

Choosing the most suitable coupling

Procedure of Selection (Actuator)

Procedure of Selection

Procedure of Selection

No. 8: Preventing Part Fall-out

What are Captive Screws? Introduction of the NBK Captive Series

Use the NBK Captive Screw Series to be comply with CE

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

No. 6: Thermal Cycling

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

What are Captive Screws? Introduction of the NBK Captive Series

Use the NBK Captive Screw Series to be comply with CE

Only certain workersshould be able to remove screws 【Safety Measures/Precautionary Measures】

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

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

What is a Coupling? Explanation of Types and Features

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

Vol.6 Varieties of Screws "Beyond" SUS

A new generation of disk couplings

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

No. 6: Thermal Cycling

No. 5: Solving common problems inside equipment

Comparison of the Dimensions of Low Profile Screws and Small Head Screws

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

Vol.6 Varieties of Screws "Beyond" SUS

What makes our custom screws special

Customization

NBK SPECIAL SCREWS

Flexus

Designs and Examples of What NBK Can Create

No. 6: Thermal Cycling

No. 5: Solving common problems inside equipment

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

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

Higher torque and Lower price.

Select the best screws for your needs

All you need to know about the roles and types of washers!

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

What are Captive Screws? Introduction of the NBK Captive Series

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

No. 8: Preventing Part Fall-out

Select the best screws for your needs

All you need to know about the roles and types of washers!

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

What are Captive Screws? Introduction of the NBK Captive Series

Vol.4　What are washers used for?

Vol.6　Varieties of Screws "Beyond" SUS

Vol.6　Varieties of Screws "Beyond" SUS

Vol.4　What are washers used for?

Vol.6　Varieties of Screws "Beyond" SUS