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TORX PLUS® Fastener Drive Systems

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The TORX PLUS® Drive was designed to enhance assembly line performance. Manufacturers all over the world have realized significant improvements and cost savings by switching to the TORX PLUS® Drive. Since its introduction, TORX PLUS® Drive has consistently outperformed every other drive system. Its longer tool life and optimal torque transfer have enhanced product reliability, increased productivity, and reduced total assembly costs on assembly lines in a multitude of industries.

 

THE SOLUTION TO YOUR ASSEMBLY PROBLEMS

Since its introduction, TORX PLUS® Drive has consistently outperformed every other drive system. Its longer tool life and optimal torque transfer have enhanced product reliability, increased productivity, and reduced total assembly costs on assembly lines in a multitude of industries around the world.

Elliptically-based Geometry

  • Broadens contact surface to maximize engagement of driver and recess
  • Eliminates damaging point-to-point contact
0° Drive Angle
  • Optimizes torque transmission
  • Virtually eliminates radial stresses to increase tool bit life
  • Allows use of thinner-walled recesses
Six Lobes With Large Cross-Sectional Areas
  • Allows faster tool engagement
  • Maximizes torque transfer
  • Increases torsional strength
Vertical Sidewalls & Reduced Recess Fallaway
  • Increases tool engagement
  • Virtually eliminates camout
  • Ensures proper torque transfer
  • Greatly reduces end load requirements
  • Minimizes tool slippage and damage it can cause
  • Can reduce fatigue and muscular stress during manual assembly of fasteners
Greatly Increased Strength and Reliability
  • 100% average improvement in driver bit life; many users of the TORX PLUS® Drive System have driven 2 to 10 times more fasteners per drive tool
  • 25% average improvement in driver bit torsional strength
  • Increased bit strength allows for higher removal torque capability
Inch & Metric In One Drive Tool
  • Same-sized drive tool seats both inch- and metricsized fasteners
  • Add or convert to metrics without a tooling change
  • Reduce the number of tools required by field service personnel
Compatible with TORX® Drive for Field Service
  • TORX Drive tools can be used to remove and reinstall TORX PLUS® Drive recess fasteners


PERFECT FOR HIGH - SPEED ASSEMBLY LINES

Difficulty in aligning the drive bit and the recess can force an assembly line to slow down to assure proper fastening.

AUTOSERT® FEATURE - THE HIGH PRODUCTIVITY
ANSWER TO HIGH RPM ENGAGEMENT


The compound angle ramps of the AUTOSERT feature guide the driver bit into the recess, creating a selfcentering and engaging action. It’s the perfect solution for automated, robotic and other assembly situations where the driver bit is continuously rotating.

  • Allows for higher rpm engagement
  • Speeds engagement
  • Reduces assembly time
  • Increases productivity
Enlarged window of engagement improves drive bit alignment in offset and off-angle conditions
  • Eases starting
  • Eliminates need to slow down driver bit
Lobe Engagement
  • Increases tool life – during beta site testing, a manufacturer achieved reduced drive bit usage at over 1500 rpm
  • Eliminates camout debris
This patented feature is a TORX PLUS® Drive exclusive, available in drive sizes 6IP-100IP

TORX PLUS® DRIVE SOLUTIONS

REDUCING INSTALLATION TIME & DRIVE BIT USAGE

APPLICATION: Truck trailer floor

FASTENER DESCRIPTION: 5/16-18 Taptite® thread-forming screw

ASSEMBLY METHOD: Manual stand-up, two-hand drive gun whose bit continuously spins at 2,200 rpm

ASSEMBLY PROBLEM: When using TORX Drive, assembly line had to be slowed down to assure proper drive bit/recess engagement.

TORX PLUS® DRIVE SOLUTION: TORX PLUS® Drive with AUTOSERT feature allows drive bit to remain at full speed when engaging fastener, increasing productivity.

CUSTOMER BENEFITS:
  • Installation time was reduced as much as 20 minutes per trailer
  • Drive bit usage was reduced from 45 bits per week to less than 5 per week


TORX PLUS® DRIVE SURPASSES THE COMPETITION

What is your most annoying fastening problem? Damaged applications? Constantly changing tool bits? Perhaps your current system solves one problem, only to cause another.

Only the TORX PLUS® Drive gives you all the benefits you need to have a more efficient, more productive assembly line.

USING TORX PLUS® DRIVE BENEFITS YOUR ENTIRE ORGANIZATION:


PURCHASING

  • Reduced tooling costs
  • Reduced overall costs
MANUFACTURING
  • Reduced downtime from tooling changes
  • More assemblies per shift
  • Reduced worker fatigue
QUALITY CONTROL
  • Ensures proper seating of fasteners
  • Reduced field service and warranty claims due to improperly seated fasteners
  • Reduced number of scrapped or reworked components


TORX PLUS® DRIVE OUTPERFORMS THE TORX® DRIVE

A finite element analysis (FEA) of the TORX PLUS® Drive System and the TORX Drive System was conducted to analyze the amount of stress encountered by both the drive bits and recesses.

The TORX PLUS® Drive System demonstrated:

  • An average 25% increase in ultimate torsional strength of the driver bit.
  • An average 25% increase in ultimate torsional strength of the total drive system, allowing for higher torque transfer and higher torque removal capability.
  • An increase in fatigue life averaging 100% because of reduced stresses in the driver bit.
  • Because of the circumferential load transfer of the TORX PLUS® Drive System, the radial stresses are greatly reduced. This allows for thinner-walled recesses and demonstrates a more efficient drive system.

    The TORX PLUS Drive directs the forces in a more circumferential direction than the TORX Drive. Less force is passed into the fastener head and instead is utilized directly in rotating the fastener, resulting in a more efficient transfer of torque. This also allows thinnerwalled recesses to be utilized.

    At 20Nm, the TORX PLUS® Drive has a very small percentage of the drive bit under stress, and no sign of internal yielding.
    The TORX Drive bit has a much higher percentage of the drive bit affected by the combined stresses (torsional, tensile, etc.) and also shows a small region that has internal yielding.

    The TORX PLUS® and TORX designs show a similar radial stress value at the point of contact. However, the radial stresses for the TORX Drive System spread farther into the fastener recess over a larger area than the TORX PLUS® Drive System.
    In fact, the radial stresses in the head quickly dissipate to zero for the TORX PLUS® Drive System.

    NOTE: The materials used for the TORX and TORX PLUS® models were a typical thru hardened quench and tempered carbon steel, with properties representative of a Property Class 10.9 fastener. The material properties for the drive bit are for a modified S-2 material corresponding approximately to a hardness of Rockwell C60.


  • TORX PLUS® DRIVE VARIATIONS

    TAMPER-RESISTANT TORX PLUS® DRIVE
    This unique TORX PLUS® variation incorporates a five lobe design and a solid post formed in the center of the recess.

    • When combined with a countersunk or button head design, the fastener is extremely difficult to remove without a special tamper-resistant TORX PLUS Drive tool
    • Tamper-resistant TORX PLUS® tooling is only available to the OEM and their authorized service technicians to limit access and maintain the integrity of the system
    • Installation is quick and easy with the proper tool
    • Recognized as the only truly tamper-resistant drive system - the preferred internal drive system defined in SAE specification J2317 (Tamper Resistance for Adjustable Parameters on Diesel Fuel Injection Pumps)
    • Available in fastener sizes M2.5 - M25 (#3 to 1")
    DUAL DRIVE SYSTEMS
    The TORX PLUS® Drive System can be combined with either an external hex or a slot to provide a dual drive system.
    • Provides the option of driving or removing the fastener with commonly available TORX PLUS® tools or with a hex socket or slotted screwdriver
    • The slotted TORX PLUS® fastener has a slot that is enclosed at the ends, so the driver is less likely to slip out and damage surrounding surfaces
    EXTERNAL TORX PLUS® DRIVE SYSTEM
    Designed with the same elliptically-based geometry as the internal drive system, this version allows the highest torque transfer available.
    • The external TORX PLUS® Drive provides 10% more torsional strength than the same-sized external TORX Drive
    • TORX PLUS® sockets are required for installation and removal, as TORX sockets are not compatible
    • Available in fastener sizes M0.6 - M24 (#0000 - 1")
    TORX PLUS® STEM FASTENERS
    An external TORX PLUS® configuration, extruded onto one end of the double-end stud, simplifies driving.
    • Eliminates need to grip threads during driving, preventing thread damage
    • Offers improvement in stem strength due to increased cross-sectional area
    EXTERNAL TORX PLUS® LOW-PROFILE HEAD
    This version provides high torque transfer in a low head height.
    • Higher torque transfer capabilities than corresponding internal recesses
    • Head height similar to pan or indented hex head
    • Lower weight than pan or indented hex head fasteners
    • Requires special sockets
    • Available in fastener sizes M0.6 - M24 (#0000 - 1")


    IT’S TIME YOU TRIED THE TORX PLUS® DRIVE

    The superiority of the TORX PLUS® Drive System is well-documented. No matter what the industry, no matter what the application, the TORX PLUS® Drive System is proven to keep assembly lines running smoother and more efficiently.

    CONVERT FOR THE ULTIMATE IN COST SAVINGS
    The real savings from the TORX PLUS® Drive System are on the bottom line. When factors such as the cost of drive tools, line downtime, design flexibility, productivity, scrap/rework per shift, worker fatigue and overall product integrity are considered, the choice to convert becomes clear.

    Textron Fastening Systems can assist in your conversion to the TORX PLUS® Drive System by providing sample fasteners, drive tools, sales drawings and technical data; conducting engineering seminars; and performing comparative laboratory testing on your application in a simulated production line environment.

    TORX PLUS® DRIVE INFORMATION ONLINE
    To put the information you need at your fingertips, Textron Fastening Systems maintains a web site focused on the TORX PLUS® Drive System. Technical and design data, including head specifications, test results, downloadable literature and CAD drawings are all available at www.camcar.textron.com/torxplus.

    For a free TORX PLUS® Drive Solutions packet, including information on the TORX PLUS® Drive System, AUTOSERT feature, tooling, gaging or any of our products and services.

    TORX PLUS® DRIVE SOLUTIONS
    Increased Tool Bit Life Increases Productivity

    APPLICATION: Disk drive for personal computers

    ASSEMBLY METHOD: Automated

    ASSEMBLY PROBLEM: When using the TORX Drive System, the manufacturer was only able to build 200 disk drives per drive bit.

    TORX PLUS® Drive Solution: TORX PLUS® Drive fasteners

    Customer Benefits:

    • Manufacturer is building 2,000 disk drives per tool bit
    • Lower drive tool costs
    • Increased productivity due to fewer drive tool changes