Shop all Products
Precision Ground Blanks

Open for Orders 24/7!

Deals
Get a Quick Quote

Ground Flat Stock

Show full description

Ground Flat Stock

Ground flat stock at OnlineMetals is a precision-ground, rectangular bar made from high-quality tool, alloy, stainless, or carbon steels, engineered to tight tolerances for flatness, dimension, and surface finish. It’s ideal for applications in tool & die, machining, gauges, or precision parts where consistent thickness and smooth surfaces are essential. OnlineMetals offers a range of grades—such as A2, D2, O1, 4140, and various stainless alloys—cut to size to avoid excess material waste. The stock is surface ground on all four faces, eliminating defects and decarburization, and arrives ready for further machining or finishing. With quick processing and inventory across multiple grades and sizes, it provides an efficient, reliable source for professionals and hobbyists needing precision material.

Sort by

1667 results

Close

More filters

Height

Thickness

Width

Material

Production Method

seller

Alloy/Type

Shape

Can't find what you need?

Contact our experienced US-based customer service team for hard-to-source materials.


5/16" x 2" Tool Steel Rectangle Bar S7 Ground Oversize Part # 11389

5/16" x 2" Tool Steel Rectangle Bar S7 Ground Oversize -
Part #: 11389
Best shipping value:
Single Heat Lot Required
Why are heat lots important?
Heat lots ensure consistent metal properties, full traceability, and quality control, which are critical for precision and reliability in your projects.

By selecting "Single Heat Lot Required" option, we ensure all cut pieces are sourced from a single heat lot for consistency in material characteristics.

QTY

Update
$149.80 for 1
$149.80 ea.

Dimensions

  • Thickness: 0.3125"
  • Width: 2"
Click for more details
tool-steel-rectangle-bar-s7-oversize-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A681 , SAE-J-437

Key Features

MTR FREE MTR Available
View more product details View more product details
View more product details Click for more details
tool-steel-rectangle-bar-s7-oversize-1superZoom-desk11389

5/16" x 2 1/2" Tool Steel Rectangle Bar S7 Ground Oversize Part # 11390

5/16" x 2 1/2" Tool Steel Rectangle Bar S7 Ground Oversize -
Part #: 11390
Best shipping value:
Single Heat Lot Required
Why are heat lots important?
Heat lots ensure consistent metal properties, full traceability, and quality control, which are critical for precision and reliability in your projects.

By selecting "Single Heat Lot Required" option, we ensure all cut pieces are sourced from a single heat lot for consistency in material characteristics.

QTY

Update
$176.80 for 1
$176.80 ea.

Dimensions

  • Thickness: 0.3125"
  • Width: 2.5"
Click for more details
tool-steel-rectangle-bar-s7-oversize-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A681 , SAE-J-437

Key Features

MTR FREE MTR Available
View more product details View more product details
View more product details Click for more details
tool-steel-rectangle-bar-s7-oversize-1superZoom-desk11390

5/16" x 3" Tool Steel Rectangle Bar S7 Ground Oversize Part # 11391

5/16" x 3" Tool Steel Rectangle Bar S7 Ground Oversize -
Part #: 11391
Best shipping value:
Single Heat Lot Required
Why are heat lots important?
Heat lots ensure consistent metal properties, full traceability, and quality control, which are critical for precision and reliability in your projects.

By selecting "Single Heat Lot Required" option, we ensure all cut pieces are sourced from a single heat lot for consistency in material characteristics.

QTY

Update
$203.88 for 1
$203.88 ea.

Dimensions

  • Thickness: 0.3125"
  • Width: 3"
Click for more details
tool-steel-rectangle-bar-s7-oversize-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A681 , SAE-J-437

Key Features

MTR FREE MTR Available
View more product details View more product details
View more product details Click for more details
tool-steel-rectangle-bar-s7-oversize-1superZoom-desk11391

5/16" x 4" Tool Steel Rectangle Bar S7 Ground Oversize Part # 11392

5/16" x 4" Tool Steel Rectangle Bar S7 Ground Oversize -
Part #: 11392
Best shipping value:
Single Heat Lot Required
Why are heat lots important?
Heat lots ensure consistent metal properties, full traceability, and quality control, which are critical for precision and reliability in your projects.

By selecting "Single Heat Lot Required" option, we ensure all cut pieces are sourced from a single heat lot for consistency in material characteristics.

QTY

Update
$257.85 for 1
$257.85 ea.

Dimensions

  • Thickness: 0.3125"
  • Width: 4"
Click for more details
tool-steel-rectangle-bar-s7-oversize-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A681 , SAE-J-437

Key Features

MTR FREE MTR Available
View more product details View more product details
View more product details Click for more details
tool-steel-rectangle-bar-s7-oversize-1superZoom-desk11392

5/16" x 1/2" Stainless Rectangle Bar 410 Precision Ground Part # 18638

5/16" x 1/2" Stainless Rectangle Bar 410 Precision Ground -
Part #: 18638
Best shipping value:
Single Heat Lot Required
Why are heat lots important?
Heat lots ensure consistent metal properties, full traceability, and quality control, which are critical for precision and reliability in your projects.

By selecting "Single Heat Lot Required" option, we ensure all cut pieces are sourced from a single heat lot for consistency in material characteristics.

QTY

Update
$165.94 for 1
$165.94 ea.

Dimensions

  • Thickness: 0.3125"
  • Width: 0.5"
Click for more details
stainless-rectangle-bar-410-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A240

Key Features

MTR FREE MTR Available
View more product details View more product details
View more product details Click for more details
stainless-rectangle-bar-410-1superZoom-desk18638

5/16" x 3/4" Stainless Rectangle Bar 410 Precision Ground Part # 18644

5/16" x 3/4" Stainless Rectangle Bar 410 Precision Ground -
Part #: 18644
Best shipping value:
Single Heat Lot Required
Why are heat lots important?
Heat lots ensure consistent metal properties, full traceability, and quality control, which are critical for precision and reliability in your projects.

By selecting "Single Heat Lot Required" option, we ensure all cut pieces are sourced from a single heat lot for consistency in material characteristics.

QTY

Update
$173.93 for 1
$173.93 ea.

Dimensions

  • Thickness: 0.3125"
  • Width: 0.75"
Click for more details
stainless-rectangle-bar-410-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A240

Key Features

MTR FREE MTR Available
View more product details View more product details
View more product details Click for more details
stainless-rectangle-bar-410-1superZoom-desk18644

5/16" x 1" Stainless Rectangle Bar 410 Precision Ground Part # 18652

5/16" x 1" Stainless Rectangle Bar 410 Precision Ground -
Part #: 18652
Best shipping value:
Single Heat Lot Required
Why are heat lots important?
Heat lots ensure consistent metal properties, full traceability, and quality control, which are critical for precision and reliability in your projects.

By selecting "Single Heat Lot Required" option, we ensure all cut pieces are sourced from a single heat lot for consistency in material characteristics.

QTY

Update
$199.11 for 1
$199.11 ea.

Dimensions

  • Thickness: 0.3125"
  • Width: 1"
Click for more details
stainless-rectangle-bar-410-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A240

Key Features

MTR FREE MTR Available
View more product details View more product details
View more product details Click for more details
stainless-rectangle-bar-410-1superZoom-desk18652

5/16" x 1 1/4" Stainless Rectangle Bar 410 Precision Ground Part # 18662

5/16" x 1 1/4" Stainless Rectangle Bar 410 Precision Ground -
Part #: 18662
Best shipping value:
Single Heat Lot Required
Why are heat lots important?
Heat lots ensure consistent metal properties, full traceability, and quality control, which are critical for precision and reliability in your projects.

By selecting "Single Heat Lot Required" option, we ensure all cut pieces are sourced from a single heat lot for consistency in material characteristics.

QTY

Update
$210.36 for 1
$210.36 ea.

Dimensions

  • Thickness: 0.3125"
  • Width: 1.25"
Click for more details
stainless-rectangle-bar-410-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A240

Key Features

MTR FREE MTR Available
View more product details View more product details
View more product details Click for more details
stainless-rectangle-bar-410-1superZoom-desk18662

5/16" x 1 1/2" Stainless Rectangle Bar 410 Precision Ground Part # 18673

5/16" x 1 1/2" Stainless Rectangle Bar 410 Precision Ground -
Part #: 18673
Best shipping value:
Single Heat Lot Required
Why are heat lots important?
Heat lots ensure consistent metal properties, full traceability, and quality control, which are critical for precision and reliability in your projects.

By selecting "Single Heat Lot Required" option, we ensure all cut pieces are sourced from a single heat lot for consistency in material characteristics.

QTY

Update
$274.16 for 1
$274.16 ea.

Dimensions

  • Thickness: 0.3125"
  • Width: 1.5"
Click for more details
stainless-rectangle-bar-410-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A240

Key Features

MTR FREE MTR Available
View more product details View more product details
View more product details Click for more details
stainless-rectangle-bar-410-1superZoom-desk18673

5/16" x 2" Stainless Rectangle Bar 410 Precision Ground Part # 18683

5/16" x 2" Stainless Rectangle Bar 410 Precision Ground -
Part #: 18683
Best shipping value:
Single Heat Lot Required
Why are heat lots important?
Heat lots ensure consistent metal properties, full traceability, and quality control, which are critical for precision and reliability in your projects.

By selecting "Single Heat Lot Required" option, we ensure all cut pieces are sourced from a single heat lot for consistency in material characteristics.

QTY

Update
$290.23 for 1
$290.23 ea.

Dimensions

  • Thickness: 0.3125"
  • Width: 2"
Click for more details
stainless-rectangle-bar-410-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A240

Key Features

MTR FREE MTR Available
View more product details View more product details
View more product details Click for more details
stainless-rectangle-bar-410-1superZoom-desk18683

5/16" x 2 1/2" Stainless Rectangle Bar 410 Precision Ground Part # 18698

5/16" x 2 1/2" Stainless Rectangle Bar 410 Precision Ground -
Part #: 18698
Best shipping value:
Single Heat Lot Required
Why are heat lots important?
Heat lots ensure consistent metal properties, full traceability, and quality control, which are critical for precision and reliability in your projects.

By selecting "Single Heat Lot Required" option, we ensure all cut pieces are sourced from a single heat lot for consistency in material characteristics.

QTY

Update
$371.79 for 1
$371.79 ea.

Dimensions

  • Thickness: 0.3125"
  • Width: 2.5"
Click for more details
stainless-rectangle-bar-410-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A240

Key Features

MTR FREE MTR Available
View more product details View more product details
View more product details Click for more details
stainless-rectangle-bar-410-1superZoom-desk18698

5/16" x 3" Stainless Rectangle Bar 410 Precision Ground Part # 18709

5/16" x 3" Stainless Rectangle Bar 410 Precision Ground -
Part #: 18709
Best shipping value:
Single Heat Lot Required
Why are heat lots important?
Heat lots ensure consistent metal properties, full traceability, and quality control, which are critical for precision and reliability in your projects.

By selecting "Single Heat Lot Required" option, we ensure all cut pieces are sourced from a single heat lot for consistency in material characteristics.

QTY

Update
$442.94 for 1
$442.94 ea.

Dimensions

  • Thickness: 0.3125"
  • Width: 3"
Click for more details
stainless-rectangle-bar-410-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A240

Key Features

MTR FREE MTR Available
View more product details View more product details
View more product details Click for more details
stainless-rectangle-bar-410-1superZoom-desk18709

5/16" x 3 1/2" Stainless Rectangle Bar 410 Precision Ground Part # 18724

5/16" x 3 1/2" Stainless Rectangle Bar 410 Precision Ground -
Part #: 18724
Best shipping value:
Single Heat Lot Required
Why are heat lots important?
Heat lots ensure consistent metal properties, full traceability, and quality control, which are critical for precision and reliability in your projects.

By selecting "Single Heat Lot Required" option, we ensure all cut pieces are sourced from a single heat lot for consistency in material characteristics.

QTY

Update
$514.77 for 1
$514.77 ea.

Dimensions

  • Thickness: 0.3125"
  • Width: 3.5"
Click for more details
stainless-rectangle-bar-410-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A240

Key Features

MTR FREE MTR Available
View more product details View more product details
View more product details Click for more details
stainless-rectangle-bar-410-1superZoom-desk18724

5/16" x 4" Stainless Rectangle Bar 410 Precision Ground Part # 18734

5/16" x 4" Stainless Rectangle Bar 410 Precision Ground -
Part #: 18734
Best shipping value:
Single Heat Lot Required
Why are heat lots important?
Heat lots ensure consistent metal properties, full traceability, and quality control, which are critical for precision and reliability in your projects.

By selecting "Single Heat Lot Required" option, we ensure all cut pieces are sourced from a single heat lot for consistency in material characteristics.

QTY

Update
$531.75 for 1
$531.75 ea.

Dimensions

  • Thickness: 0.3125"
  • Width: 4"
Click for more details
stainless-rectangle-bar-410-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A240

Key Features

MTR FREE MTR Available
View more product details View more product details
View more product details Click for more details
stainless-rectangle-bar-410-1superZoom-desk18734

5/16" x 5" Stainless Rectangle Bar 410 Precision Ground Part # 18747

5/16" x 5" Stainless Rectangle Bar 410 Precision Ground -
Part #: 18747
Best shipping value:
Single Heat Lot Required
Why are heat lots important?
Heat lots ensure consistent metal properties, full traceability, and quality control, which are critical for precision and reliability in your projects.

By selecting "Single Heat Lot Required" option, we ensure all cut pieces are sourced from a single heat lot for consistency in material characteristics.

QTY

Update
$656.50 for 1
$656.50 ea.

Dimensions

  • Thickness: 0.3125"
  • Width: 5"
Click for more details
stainless-rectangle-bar-410-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A240

Key Features

MTR FREE MTR Available
View more product details View more product details
View more product details Click for more details
stainless-rectangle-bar-410-1superZoom-desk18747

5/16" x 6" Stainless Rectangle Bar 410 Precision Ground Part # 18759

5/16" x 6" Stainless Rectangle Bar 410 Precision Ground -
Part #: 18759
Best shipping value:
Single Heat Lot Required
Why are heat lots important?
Heat lots ensure consistent metal properties, full traceability, and quality control, which are critical for precision and reliability in your projects.

By selecting "Single Heat Lot Required" option, we ensure all cut pieces are sourced from a single heat lot for consistency in material characteristics.

QTY

Update
$726.50 for 1
$726.50 ea.

Dimensions

  • Thickness: 0.3125"
  • Width: 6"
Click for more details
stainless-rectangle-bar-410-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A240

Key Features

MTR FREE MTR Available
View more product details View more product details
View more product details Click for more details
stainless-rectangle-bar-410-1superZoom-desk18759

5/16" x 8" Stainless Rectangle Bar 410 Precision Ground Part # 18779

5/16" x 8" Stainless Rectangle Bar 410 Precision Ground -
Part #: 18779
Best shipping value:
Single Heat Lot Required
Why are heat lots important?
Heat lots ensure consistent metal properties, full traceability, and quality control, which are critical for precision and reliability in your projects.

By selecting "Single Heat Lot Required" option, we ensure all cut pieces are sourced from a single heat lot for consistency in material characteristics.

QTY

Update
$987.69 for 1
$987.69 ea.

Dimensions

  • Thickness: 0.3125"
  • Width: 8"
Click for more details
stainless-rectangle-bar-410-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A240

Key Features

MTR FREE MTR Available
View more product details View more product details
View more product details Click for more details
stainless-rectangle-bar-410-1superZoom-desk18779

5/16" x 9" Stainless Rectangle Bar 410 Precision Ground Part # 18787

5/16" x 9" Stainless Rectangle Bar 410 Precision Ground -
Part #: 18787
Best shipping value:
Single Heat Lot Required
Why are heat lots important?
Heat lots ensure consistent metal properties, full traceability, and quality control, which are critical for precision and reliability in your projects.

By selecting "Single Heat Lot Required" option, we ensure all cut pieces are sourced from a single heat lot for consistency in material characteristics.

QTY

Update
$1,094.32 for 1
$1,094.32 ea.

Dimensions

  • Thickness: 0.3125"
  • Width: 9"
Click for more details
stainless-rectangle-bar-410-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A240

Key Features

MTR FREE MTR Available
View more product details View more product details
View more product details Click for more details
stainless-rectangle-bar-410-1superZoom-desk18787

5/16" x 10" Stainless Rectangle Bar 410 Precision Ground Part # 18799

5/16" x 10" Stainless Rectangle Bar 410 Precision Ground -
Part #: 18799
Best shipping value:
Single Heat Lot Required
Why are heat lots important?
Heat lots ensure consistent metal properties, full traceability, and quality control, which are critical for precision and reliability in your projects.

By selecting "Single Heat Lot Required" option, we ensure all cut pieces are sourced from a single heat lot for consistency in material characteristics.

QTY

Update
$1,207.41 for 1
$1,207.41 ea.

Dimensions

  • Thickness: 0.3125"
  • Width: 10"
Click for more details
stainless-rectangle-bar-410-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A240

Key Features

MTR FREE MTR Available
View more product details View more product details
View more product details Click for more details
stainless-rectangle-bar-410-1superZoom-desk18799

5/16" x 12" Stainless Rectangle Bar 410 Precision Ground Part # 18811

5/16" x 12" Stainless Rectangle Bar 410 Precision Ground -
Part #: 18811
Best shipping value:
Single Heat Lot Required
Why are heat lots important?
Heat lots ensure consistent metal properties, full traceability, and quality control, which are critical for precision and reliability in your projects.

By selecting "Single Heat Lot Required" option, we ensure all cut pieces are sourced from a single heat lot for consistency in material characteristics.

QTY

Update
$1,542.86 for 1
$1,542.86 ea.

Dimensions

  • Thickness: 0.3125"
  • Width: 12"
Click for more details
stainless-rectangle-bar-410-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A240

Key Features

MTR FREE MTR Available
View more product details View more product details
View more product details Click for more details
stainless-rectangle-bar-410-1superZoom-desk18811

5/16" x 1/2" Stainless Rectangle Bar 440C Oversize Ground Stock Part # 18855

5/16" x 1/2" Stainless Rectangle Bar 440C Oversize Ground Stock -
Part #: 18855
Best shipping value:
Single Heat Lot Required
Why are heat lots important?
Heat lots ensure consistent metal properties, full traceability, and quality control, which are critical for precision and reliability in your projects.

By selecting "Single Heat Lot Required" option, we ensure all cut pieces are sourced from a single heat lot for consistency in material characteristics.

QTY

Update
$206.39 for 1
$206.39 ea.

Dimensions

  • Thickness: 0.3125"
  • Width: 0.5"
Click for more details
stainless-rectangle-bar-410-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A276

Key Features

MTR FREE MTR Available
View more product details View more product details
View more product details Click for more details
stainless-rectangle-bar-410-1superZoom-desk18855

5/16" x 3/4" Stainless Rectangle Bar 440C Oversize Ground Stock Part # 18861

5/16" x 3/4" Stainless Rectangle Bar 440C Oversize Ground Stock -
Part #: 18861
Best shipping value:
Single Heat Lot Required
Why are heat lots important?
Heat lots ensure consistent metal properties, full traceability, and quality control, which are critical for precision and reliability in your projects.

By selecting "Single Heat Lot Required" option, we ensure all cut pieces are sourced from a single heat lot for consistency in material characteristics.

QTY

Update
$215.50 for 1
$215.50 ea.

Dimensions

  • Thickness: 0.3125"
  • Width: 0.75"
Click for more details
stainless-rectangle-bar-410-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A276

Key Features

MTR FREE MTR Available
View more product details View more product details
View more product details Click for more details
stainless-rectangle-bar-410-1superZoom-desk18861

5/16" x 1" Stainless Rectangle Bar 440C Oversize Ground Stock Part # 18869

5/16" x 1" Stainless Rectangle Bar 440C Oversize Ground Stock -
Part #: 18869
Best shipping value:
Single Heat Lot Required
Why are heat lots important?
Heat lots ensure consistent metal properties, full traceability, and quality control, which are critical for precision and reliability in your projects.

By selecting "Single Heat Lot Required" option, we ensure all cut pieces are sourced from a single heat lot for consistency in material characteristics.

QTY

Update
$243.68 for 1
$243.68 ea.

Dimensions

  • Thickness: 0.3125"
  • Width: 1"
Click for more details
stainless-rectangle-bar-410-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A276

Key Features

MTR FREE MTR Available
View more product details View more product details
View more product details Click for more details
stainless-rectangle-bar-410-1superZoom-desk18869

5/16" x 1 1/4" Stainless Rectangle Bar 440C Oversize Ground Stock Part # 18879

5/16" x 1 1/4" Stainless Rectangle Bar 440C Oversize Ground Stock -
Part #: 18879
Best shipping value:
Single Heat Lot Required
Why are heat lots important?
Heat lots ensure consistent metal properties, full traceability, and quality control, which are critical for precision and reliability in your projects.

By selecting "Single Heat Lot Required" option, we ensure all cut pieces are sourced from a single heat lot for consistency in material characteristics.

QTY

Update
$256.25 for 1
$256.25 ea.

Dimensions

  • Thickness: 0.3125"
  • Width: 1.25"
Click for more details
stainless-rectangle-bar-410-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A276

Key Features

MTR FREE MTR Available
View more product details View more product details
View more product details Click for more details
stainless-rectangle-bar-410-1superZoom-desk18879

5/16" x 1 1/2" Stainless Rectangle Bar 440C Oversize Ground Stock Part # 18891

5/16" x 1 1/2" Stainless Rectangle Bar 440C Oversize Ground Stock -
Part #: 18891
Best shipping value:
Single Heat Lot Required
Why are heat lots important?
Heat lots ensure consistent metal properties, full traceability, and quality control, which are critical for precision and reliability in your projects.

By selecting "Single Heat Lot Required" option, we ensure all cut pieces are sourced from a single heat lot for consistency in material characteristics.

QTY

Update
$327.59 for 1
$327.59 ea.

Dimensions

  • Thickness: 0.3125"
  • Width: 1.5"
Click for more details
stainless-rectangle-bar-410-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A276

Key Features

MTR FREE MTR Available
View more product details View more product details
View more product details Click for more details
stainless-rectangle-bar-410-1superZoom-desk18891

Displaying 726 - 750 of 1667 results

Results per page

Can't find what you're looking for?

Contact us for a custom quote