Loosening Prevention

These screws are designed to prevent loosening.
Bolts with nylon patches use friction to suppress reverse rotation of the screw.
Eccentric Lock Washers, used in combination with hex nuts, greatly prevent loosening.
Lock nuts have friction rings to prevent loosening.
Loosening-Prevention_1en

Image
Part Name	Socket Head Cap Screws with Ultra Low Profile and Nylon Patch	Socket Head Cap Screws with Ultra Low Profile - SUSXM7 - with Nylon Patch	Hexalobular Socket Head Cap Screws with Super Ultra Low Profile and Nylon Patch	Hexalobular Socket Head Cap Screws with Super Ultra Low Profile and Nylon Patch	Socket Head Cap Screws with Small Head and Nylon Patch	Socket Head Cap Screws with Small Head and Nylon Patch	Socket Head Cap Screws with Ultra Low Profile & Small Head and Nylon Patch	Socket Head Cap Screws with Ultra Low Profile & Small Head and Nylon Patch	Hexalobular Socket Extra Low Profile Miniature Screw / Nylon Patch
Part Number	SSH-EL-ALK	SSHS-ALK	SET-NI-ALK	SETS-ALK	SNS-SD-EL-ALK	SNSS-SD-ALK	SSH-SD-EL-ALK	SSHS-SD-ALK	SNZCXS-ALK
Feature	Special Low Profile Space-Saving Nylon Patch	Special Low Profile Space-Saving Nylon Patch	Hexalobular Socket Extra Low Profile Space-Saving Nylon Patch	Hexalobular Socket Extra Low Profile Space-Saving Nylon Patch	Small Head Space-Saving Nylon Patch	Small Head Space-Saving Nylon Patch	Special Low Profile Small Head Space-Saving Nylon Patch	Special Low Profile Small Head Space-Saving Nylon Patch	Flat Head Machine Screw for Precision Instruments
Material	Steel	SUSXM7 (Equivalent to SUS304)	Steel	SUSXM7 (Equivalent to SUS304)	Steel	SUSXM7 (Equivalent to SUS304)	Steel	SUSXM7 (Equivalent to SUS304)	SUSXM7 (Equivalent to SUS304)
Surface Treatment	Electroless nickel plating	-	Nickel plating	-	Electroless nickel plating	-	Electroless nickel plating	-	-
Thread Size	M2 ～ M8	M2 ～ M8	M3 ～ M5	M2 ～ M6	M3 ～ M8	M2 ～ M8	M3 ～ M8	M2 ～ M8	M1.4 ～ M2.5
Operating Temperature (℃)	-	-	-	-	-	-	-	-	-
CAD	CAD	CAD	CAD	CAD	CAD	CAD	CAD	CAD	CAD
Specifications	Specifications	Specifications	Specifications	Specifications	Specifications	Specifications	Specifications	Specifications	Specifications
List	SSH-M2.5-EL-ALK SSH-M2-EL-ALK SSH-M3-EL-ALK SSH-M4-EL-ALK SSH-M5-EL-ALK SSH-M6-EL-ALK SSH-M8-EL-ALK	SSHS-M2.5-ALK SSHS-M2-ALK SSHS-M3-ALK SSHS-M4-ALK SSHS-M5-ALK SSHS-M6-ALK SSHS-M8-ALK	SET-M3-NI-ALK SET-M4-NI-ALK SET-M5-NI-ALK	SETS-M2.6-ALK SETS-M2-ALK SETS-M3-ALK SETS-M4-ALK SETS-M5-ALK SETS-M6-ALK	SNS-M3-SD-EL-ALK SNS-M4-SD-EL-ALK SNS-M5-SD-EL-ALK SNS-M6-SD-EL-ALK SNS-M8-SD-EL-ALK	SNSS-M2.5-SD-ALK SNSS-M2-SD-ALK SNSS-M3-SD-ALK SNSS-M4-SD-ALK SNSS-M5-SD-ALK SNSS-M6-SD-ALK SNSS-M8-SD-ALK	SSH-M3-SD-EL-ALK SSH-M4-SD-EL-ALK SSH-M5-SD-EL-ALK SSH-M6-SD-EL-ALK SSH-M8-SD-EL-ALK	SSHS-M2.5-SD-ALK SSHS-M2-SD-ALK SSHS-M3-SD-ALK SSHS-M4-SD-ALK SSHS-M5-SD-ALK SSHS-M6-SD-ALK SSHS-M8-SD-ALK	SNZCXS-M1.4-ALK SNZCXS-M1.6-ALK SNZCXS-M2.5-ALK SNZCXS-M2-ALK

Image
Part Name	Pan Head Machine Screws for Precision Instruments (Miniature Screws with Nylon Patch)	Pan Head Machine Screws for Precision Instruments (Miniature Screws with Nylon Patch)	Hex Lock Nuts	Hex Lock Nuts - Titanium	Eccentric Lock Washer™	Ribbed Lock Washers	Ribbed Lock Washers	High Intensity Flat Washers
Part Number	SNZ-TBZ-ALK	SNZS-ALK	SWUS	SWUT	SWAS-EW	SWR	SWRS	SWF
Feature	Pan Head Machine Screw for Precision Instruments Nylon Patch	Pan Head Machine Screw for Precision Instruments Nylon Patch	Vibration Resistant	Lightweight Nonmagnetic Vibration Resistant	Vibration resistant treatment with commercial hexagon nut	Vibration Resistant	Vibration Resistant	Vibration Resistant High Strength
Material	Steel	SUSXM7 (Equivalent to SUS304)	SUS304	Grade 2 Titanium	SUS304	Steel	Stainless Steel	Steel
Surface Treatment	Black Trivalent Chromate Treatment	-	-	Special Chemical Polishing	-	Ferrosoferric Oxide Film (Black)	-	Ferrosoferric Oxide Film (Black)
Thread Size	M1.4 ～ M2.6	M1 ～ M2.6	M6 ～ M12	M3 ～ M10	M6 ～ M12	M2 ～ M20	M1.6 ～ M20	M6 ～ M16
Operating Temperature (℃)	-	-	-	-	-	-	-	-
CAD	CAD	CAD	CAD	CAD	CAD	CAD	CAD	CAD
Specifications	Specifications	Specifications	Specifications	Specifications	Specifications	Specifications	Specifications	Specifications
List	SNZ-M1.4-TBZ-ALK SNZ-M1.7-TBZ-ALK SNZ-M2.6-TBZ-ALK SNZ-M2-TBZ-ALK	SNZS-M1.4-ALK SNZS-M1.6-ALK SNZS-M1.7-ALK SNZS-M1-ALK SNZS-M2.5-ALK SNZS-M2.6-ALK SNZS-M2-ALK	SWUS-M10 SWUS-M12 SWUS-M6 SWUS-M8	SWUT-M10 SWUT-M3 SWUT-M4 SWUT-M5 SWUT-M6 SWUT-M8	SWAS-10-EW SWAS-12-EW SWAS-6-EW SWAS-8-EW	SWR-10 SWR-12 SWR-16 SWR-2 SWR-2.5 SWR-20 SWR-3 SWR-4 SWR-5 SWR-6 SWR-8	SWRS-1.6 SWRS-10 SWRS-12 SWRS-16 SWRS-2 SWRS-2.5 SWRS-20 SWRS-3 SWRS-4 SWRS-5 SWRS-6 SWRS-8	SWF-10 SWF-12 SWF-16 SWF-6 SWF-8

Latest

Plastic Screw Property

This page describes "Plastic Screw Properties" such as PEEK, PTFE (Polytetrafluoroethylene), PPS, PC (polycarbonate) and PP (polypropylene).

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

Here we introduce advantages, usage examples, lineups and the like regarding screws with lower head height than ordinary screws, referred to as "low profile screws" or "low profile cap screws" (low head, slim head).

What are Hex Socket Head Cap Screws (cap bolts)?

Hex Socket Head Cap Screws (cap bolts) are bolts (screws) with hexagon-shaped holes in their heads. It lists product descriptions for hex socket head cap screws, recommended products, etc.

No. 6: Thermal Cycling

Here we discuss thermal cycling, which is often an issue in semiconductor manufacturing equipment.

Helpful Resources

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

What are Hex Socket Head Cap Screws (cap bolts)?

No. 6: Thermal Cycling

What are Captive Screws? Introduction of the NBK Captive Series

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

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

No. 6: Thermal Cycling

Vol.1 What is Seizing (Galling)?

Vol.7 Screw Tightening Control Methods

Select the best screws for your needs

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

Plastic Screw Property

Vol.4 What are washers used for?

Hexagon Socket Head Cap Screws Excerpts from ISO 4762：2004, JIS B 1176:2015

Vol. 12 Back to Basics Series! Screw Reference Dimensions

Slip Torque of Coupling – Set Screw Type

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. 6: Thermal Cycling

What are Captive Screws? Introduction of the NBK Captive Series

No. ９: Increasing Throughput

No. 2: Vacuum environments

Vol.7 Screw Tightening Control Methods

What are Captive Screws? Introduction of the NBK Captive Series

SEMS Screws: Efficiency and Convenience in Fastening

No. 2: Vacuum environments

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

Use the NBK Captive Screw Series to be comply with CE

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 Characteristics

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

Vol.6 Varieties of Screws "Beyond" SUS

A new generation of disk couplings

A new generation of disk couplings

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

No. 6: Thermal Cycling

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

No. ９: Increasing Throughput

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

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.

Plastic Screw Property

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

What are Hex Socket Head Cap Screws (cap bolts)?

What are Captive Screws? Introduction of the NBK Captive Series

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

Plastic Screw Property

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

What are Hex Socket Head Cap Screws (cap bolts)?

No. 6: Thermal Cycling

What are Captive Screws? Introduction of the NBK Captive Series

Vol.1　What is Seizing (Galling)?

Vol.7　Screw Tightening Control Methods

Vol.4　What are washers used for?

Vol.7　Screw Tightening Control Methods

Vol.6　Varieties of Screws "Beyond" SUS

Vol.1　What is Seizing (Galling)?

Vol.7　Screw Tightening Control Methods

Vol.1　What is Seizing (Galling)?

Vol.4　What are washers used for?

Vol.7　Screw Tightening Control Methods