VIBRATION SOLUTIONS

Australian Distributors for Security Locknut Inc.

Worlds Strongest Locknut

Security Locknuts are designed so that the insert raises away from the nut body upon application. This creates “isolation” from the load where the nut body carries the load and the insert does the locking, regardless of your ability to achieve “perfect” preload.

Metal locking insert made with proprietary metal and processing techniques for maximum performance

Industry standard nut body with features for locking insert

Locking insert pressed into the nut body and ready for installation on a bolt

Unique - One Part / Two Piece Design

Locking insert lifts and separates from the main nut body on the base and side walls when the bolt is installed. This separation isolates the clamping load from the locking function

Unique - One Part / Two Piece Design

Features BenefitsEasy installation • No special tool required for

installationReusable • Can be reused

• Easy removal for maintenance and serviceability• No thread galling or cold welding

Vibration resistant • Holds bolted joint tight under heavy vibration conditions

Use in extreme environments • Effective in temperatures to 400°C• Effective in high acidic or other

chemical environmentsLocking in any position on bolt • No clamping torque necessary to

achieve locking functionOne part • Reduced installation cost

• Doesn’t require special machining operations, pin, or holes

Product Features and Benefits

Standard Product Offering UN: from 3/8” to 3” thread size (class 2B tolerance)UN Body Style: Heavy Hex, Heavy Hex Thin, Finished Hex, Finished Hex Thin, and SquareUN Thread: Course and FineUN Grade: 5 and 8

Metric: from M10 to M64 thread size (class 6g tolerance)Metric Body Style: Standard and HeavyMetric thread: Course and FineMetric Class: 8 and 10

Finish: Plain Steel and ZDC (yellow zinc or Zinc Dichromate)

Unified Course ThreadBody Type / Size 3/8 1/2 5/8 3/4 7/8 1 1-1/8 1-1/4 1-3/8 1-1/2 1-5/8 1-3/4 2 2-1/4 2-1/2 2-3/4 3Heavy Hex S S S S S S S S S S M M S M S M MHeavy Hex Thin NA S S S S S S S S S M M S M S M MFinished Hex S S S S S S S S S S M M S M S M MFinished Hex Thin NA S S S S S S S S S M M S M S M MSquare C S S S S S S S S C C C C C C C C

Unified Fine ThreadBody Type / Size 3/8 1/2 5/8 3/4 7/8 1 1-1/8 1-1/4 1-3/8 1-1/2 1-5/8 1-3/4 2 2-1/4 2-1/2 2-3/4 3Heavy Hex C C C C C C C C C C C C C C C C CHeavy Hex Thin NA C C C C C C C C C C C C C C C CFinished Hex S S S S S S S S S S C C S NA NA NA NAFinished Hex Thin NA S S S S S S S S S C C S NA NA NA NASquare C C C C C C C C C C C C C C C C C

Metric Course ThreadBody Type / Size 10 12 16 20 22 24 27 30 33 36 39 42 45 48 52 56 64Standard Hex S S S S S S S S M M M M M M M M MHeavy Hex C C C C C S C S C C C C C C C C C

Metric Fine ThreadBody Type / Size 10 12 16 20 22 24 27 30 33 36 39 42 45 48 52 56 64Standard Hex S S S S S S S S M M M M M M M M MHeavy Hex C C C C C C C C C C C C C C C C C

S = Item in Stock M = Made when Ordered C = Custom Order NA = Not available

Standard Product Offering

Custom Product Offering

Examples of custom products made for specific applications

M24 with tall nut body and conical base for use on a flexible flight chain assembly 3/4 x 16 extra heavy body and conical base

used as a lug nut replacement on a wheel assembly (mining industry)

Method DetailsInstalled and tested on real world applications

Every year millions of Security Locknuts are installed on hundreds of products operating in a wide range of environments.

IFI 100/107 Standards for Prevailing Torque Locknuts

The Security Locknut meets or exceeds the Industrial Fastener Institute 100/107 Standards. This standard establishes the dimensional, mechanical, and performance requirements for prevailing-torque type steel nuts

NASM 1312-7 Test for fastener performance in vibration conditions

The Security Locknut has been tested using this accelerated life test. A summary of the test details are shown on the following pages.

50 on/off test Test measures the prevailing locknuts ability to maintain its function after installation and removal up to 50 time. Security Locknut outperforms all tested competitors.

Product Performance

NASM 1312-7 Vibration Test

Fixture design with slots to test various size products2 slots per size for side by side competitive product testing

Colored assembly shown is free to move up and down within the fixture slot

Fixture mounted to machine capable of vibrating with a frequency of 1,800 cycles per second with an amplitude of 0.450 inches (peak to peak)

NASM 1312-7 Vibration Test

Double click picture to see video

NASM 1312-7 Vibration Test

Follow up Testing and Product Development:• After detailed examination of locknut conditions required to maintain maximum bolt tension under

heavy vibration conditions we were able to isolated design parameters that had the most significant impact. Follow up design changes on select products produced results on the vibration test that exceed all other products tested.

Initial Test Results: • The Security Locknut performs better than or equal to all other prevailing torque locknuts at

preventing joint loosening (other products tested include Nyloc, 3-point deformed, and Flexloc).• The Security Locknut out performs all other locknuts by staying securely connected the bolt after the

initial tension is lost. This has proved to be a significant benefit on installations where complete separation of the nut and bolt would cause machinery down time or a potential safety issue.

Product Prevailing Torque

Install torque

Removal torque

Security Locknut 240 2,240 1,300Nyloc 150 2,150 600Flexloc 200 2,200 2003-point deformed 300 2,300 130

Product Prevailing Torque

Install torque

Removal torque

Security Locknut 220 2,220 1,250Nyloc 70 2,070 70Flexloc 200 2,200 2003-point deformed 130 2,300 130

3/4x10 run for 30,000 cycles

1st test – new nut (all products) Test run with nut reused from 1st test

Nyloc Flexloc3-point

deformedSecurity Locknut

Industries Served

• Material handling

• Coal and mineral mining equipment,

• Crushing equipment

• Transportation (rail track and

equipment)

• Heavy industrial equipment

• Wood chippers and grinders

• Recycling equipment

• Wind turbines

• and many more

SampleInstallations

Longwall Mining Operation

M30 Security Locknut used on AFC Flight and Chain

Roller Coaster – New York, New York HotelLas Vegas, Nevada

M39 Security Locknut used to hold wheel assemblies

VIBRATION SOLUTIONS 44-46 MILLS ROAD

BRAESIDEVICTORIA

AUSTRALIA3195

E-MAIL sales@vibrationsolutions.com.auTELE +613 9588 2863FAX +613 9587 7388

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