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(NEW) Premium 1/4 Turn - 1/2" AA02 Style Invert-a-Bolt™ Fastener

New premium fastener is an upgraded, direct replacement for our best-selling 1/2" Fastener.

  • New 1/4 turn design allows stud to engage material quickly, and eliminates wear on the inner parts of fastener. 
  • Stud has new proprietary coating that prevents and reduces wear on the hex. 
  • Added seal at top of new fastener prohibits debris from entering the body, eliminating the maintenance of the new fasteners completely.
  • 6 holes in the top of new fastener for more torque and ease of installation.

(NEW) 1/2" Fastener 

 SKU:  

AA02-500-101

INSERTION TOOL

AA02-004-004 

INSTALLATION HOLES 6 hole pattern
1/4 TURN DESIGN Engage material with 1/4 turn of stud

STUD

1/2-13

HEX SIZE

1/4"

ENGAGEMENT

.330"

HOUSING

1"-12 LH

HOUSING LENGTH

1.150"

MINOR DIAMETER

.905"

PLATE SIZE

1.25"

TORQUE

64 ft. lbs.

MATERIAL

STAINLESS STEEL

DOWNLOAD INSTALL GUIDE

Install Guide

    Invert-a-Bolt fasteners are changing manufacturing processes worldwide.

    This flush mounted back bolt system allows manufacturers to eliminate clamps and bolts when machining parts by securing stock and work-holding materials from underneath. This “flat plate” system contributes to maximum flexibility of the fixturing, providing improved work-holding solutions which ultimately leads to more parts produced, higher safety and less waste. Back bolts eliminate the need for costly clamps and vises and dramatically reduced setup times, which allows you to machine more parts faster with less risk of damage. Back-bolt systems can dramatically affect your pocket book too. More parts means more efficiency, better cycle time and more sales.


    Why IVB Fasteners Are Right For You

    Replace your clamps and screws with Invert-A-Bolt™ (IVB) Fasteners. These unique, flush-mounted back bolt fasteners eliminate obstructions to machining, reduce vibration in your setup, and lower your cost by cutting setup times, reducing waste and providing faster change outs.

    Superior holding ability

    Reduces stock size

    Reduces the number of setups

    Eliminates Bridge Fixtures

    Reduces programming headaches

    Works well with most modular components


    IVB Fasteners make your workholding projects easier.

    Stop wasting time looking for the "right" bolt again. Stop wasting time by grinding a bolt to size again. Stop interrupting the machining process to change clamps. Stop introducing warp creating stress into your parts due to excessive clamping.

    Run more parts

    Reduce down-stream costs

    Eliminate wasted time used to change clamps

    Reduce obstructions in multi-axis machining


    IVB Fasteners are simple to use and install, embedded in the fixture for easy access.

    These back bolts are always available in the fixture, with standardized stick-out. Simply screw the larger diameter (the housing) into the fixture plate and bring the inner diameter (the stud) up into your stock material for a superior work-holding solution.

    Raise and lower in seconds with a pneumatic driver

    Flush mount means that they are there when you need them and hidden when you don't

    Various stud & housing sizes

    How will you use them?

    IVB Fasteners are often found in high-speed horizontal manufacturing, but they fit many other appplications as well!

    High speed machining

    Quick-Change

    Modular tooling

    Assembly jigs

    Dedicated fixturing


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