• The complete McChine 6x12 Back Bolt Fixture Plate System, showing the fixture plate and the included 10-pack of 8-32 Back Bolt Assemblies.
  • A top view of the McChine 6x12 Back Bolt Fixture Plate, detailing its precision 924-hole grid and the six counterbored rows for part locating.
  • Bottom view of the McChine 6x12 Back Bolt fixture plate, showing the recessed screw pockets and the .1875" pin for **repeatable placement in a machine vise.**
  • Technical drawing of the McChine 6x12 Back Bolt Fixture Plate with detailed dimensions and specifications.
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McChine, LLC

6 in. x 12 in. Back Bolt Fixture Plate

6 in. x 12 in. Back Bolt Fixture Plate

$475.00 USD
$475.00 USD
Sale Sold out
Shipping calculated at checkout.

Unlock unparalleled efficiency and precision in your CNC machining with the McChine 6" x 12" Back Bolt Fixture Plate System. This precision-machined fixture plate eliminates the need for traditional top-clamping by allowing you to securely fasten workpieces from the bottom using our proprietary 8-32 Back Bolt Assemblies.

By using the "picture framing" machining method, you gain complete access to the top and sides of your part in a single operation. This approach drastically reduces setup time, simplifies complex operations, and is the ultimate solution for small-run manufacturing and prototyping.

Key Benefits:

  • Unlock 4th-Axis Style Work on a 3-Axis Machine: Why limit yourself to one side? Machine the top of your part, then simply stand the fixture on its side to machine side holes and features. Finish parts in fewer operations with greater accuracy, all without complex re-fixturing.

  • Picture Framing Method: This system is optimized for the picture framing technique, where the fixture securely holds your workpiece from beneath, leaving the entire profile accessible.

  • Rapid & Repeatable Setups: The precision grid of locating holes allows for fast, accurate, and repeatable positioning of your stock for consistent results on every part.

  • Seamless Vise Integration: Designed for a perfect fit in any standard 4" or 6" machine vise, integrating effortlessly into your existing setup.

What's Included:

  • (1) McChine 6" x 12" Back Bolt Fixture Plate

  • (1) McChine 8-32 Back Bolt Assembly (10-Pack)

Specifications:

  • Dimensions (Actual): 0.950" x 5.950" x 11.750"

  • Material: 6061-T6 Aluminum, Precision-Machined Flat

    • Through Holes: All 924 holes have a .177" diameter through-hole.

    • Locating Rows: Six of the rows include a .1875" diameter counterbore, .100" deep, for accurately locating stock.

      Grid System: Features a total of 924 holes arranged in 21 rows and 44 columns on a precise .250" x .250" grid.

       

  • Vise Compatibility: Fits standard 6-inch machine vises (e.g., Kurt, Tormach, SMW Mod Vise).

Downloads

Download 3D CAD Model (STEP)

Download Technical Drawing (PDF)

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