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Rectangle Flat Bar

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Rectangle Flat Bar

Known for its utility, rectangle bar stocks are used in a wide range of applications from naval brass to tooling. We carry Rectangle Bar stock in Alloy Steel, Aluminum, Brass, Bronze, Carbon Fiber, Carbon Steel, Cast Iron, Copper, Stainless Steel, and Tool Steel. Most metal flat bar stock or metal bar stock is available in full size and custom cut solid rectangle bar sizes.

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5/16" x 1 1/2" Alloy Steel Rectangle Bar 4142-Prehardened Part # 19171

5/16" x 1 1/2" Alloy Steel Rectangle Bar 4142-Prehardened -
Part #: 19171
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
$105.43 for 1
$105.43 ea.

Dimensions

  • Thickness: 0.3125"
  • Width: 1.5"
Click for more details
alloy-steel-rectangle-bar-4142-prehardened-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A322

Key Features

MTR FREE MTR Available
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alloy-steel-rectangle-bar-4142-prehardened-1superZoom-desk19171

5/16" x 1 3/4" Alloy Steel Rectangle Bar 4142-Prehardened Part # 19180

5/16" x 1 3/4" Alloy Steel Rectangle Bar 4142-Prehardened -
Part #: 19180
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
$124.23 for 1
$124.23 ea.

Dimensions

  • Thickness: 0.3125"
  • Width: 1.75"
Click for more details
alloy-steel-rectangle-bar-4142-prehardened-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A322

Key Features

MTR FREE MTR Available
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alloy-steel-rectangle-bar-4142-prehardened-1superZoom-desk19180

5/16" x 2" Alloy Steel Rectangle Bar 4142-Prehardened Part # 19190

5/16" x 2" Alloy Steel Rectangle Bar 4142-Prehardened -
Part #: 19190
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
$128.10 for 1
$128.10 ea.

Dimensions

  • Thickness: 0.3125"
  • Width: 2"
Click for more details
alloy-steel-rectangle-bar-4142-prehardened-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A322

Key Features

MTR FREE MTR Available
View more product details View more product details
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alloy-steel-rectangle-bar-4142-prehardened-1superZoom-desk19190

5/16" x 2 1/2" Alloy Steel Rectangle Bar 4142-Prehardened Part # 19199

5/16" x 2 1/2" Alloy Steel Rectangle Bar 4142-Prehardened -
Part #: 19199
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
$149.82 for 1
$149.82 ea.

Dimensions

  • Thickness: 0.3125"
  • Width: 2.5"
Click for more details
alloy-steel-rectangle-bar-4142-prehardened-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A322

Key Features

MTR FREE MTR Available
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alloy-steel-rectangle-bar-4142-prehardened-1superZoom-desk19199

5/16" x 3" Alloy Steel Rectangle Bar 4142-Prehardened Part # 19210

5/16" x 3" Alloy Steel Rectangle Bar 4142-Prehardened -
Part #: 19210
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
$172.60 for 1
$172.60 ea.

Dimensions

  • Thickness: 0.3125"
  • Width: 3"
Click for more details
alloy-steel-rectangle-bar-4142-prehardened-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A322

Key Features

MTR FREE MTR Available
View more product details View more product details
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alloy-steel-rectangle-bar-4142-prehardened-1superZoom-desk19210

5/16" x 3 1/2" Alloy Steel Rectangle Bar 4142-Prehardened Part # 19219

5/16" x 3 1/2" Alloy Steel Rectangle Bar 4142-Prehardened -
Part #: 19219
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
$210.75 for 1
$210.75 ea.

Dimensions

  • Thickness: 0.3125"
  • Width: 3.5"
Click for more details
alloy-steel-rectangle-bar-4142-prehardened-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A322

Key Features

MTR FREE MTR Available
View more product details View more product details
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alloy-steel-rectangle-bar-4142-prehardened-1superZoom-desk19219

5/16" x 10" Alloy Steel Rectangle Bar 4142-Prehardened Part # 19260

5/16" x 10" Alloy Steel Rectangle Bar 4142-Prehardened -
Part #: 19260
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
$554.50 for 1
$554.50 ea.

Dimensions

  • Thickness: 0.3125"
  • Width: 10"
Click for more details
alloy-steel-rectangle-bar-4142-prehardened-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A322

Key Features

MTR FREE MTR Available
View more product details View more product details
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alloy-steel-rectangle-bar-4142-prehardened-1superZoom-desk19260

5/16" x 3" Aluminum Rectangle Bar 6061-T6511-Extruded Part # 14515

5/16" x 3" Aluminum Rectangle Bar 6061-T6511-Extruded -
Part #: 14515
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
$21.55 for 1
$21.55 ea.

Dimensions

  • Thickness: 0.3125"
  • Width: 3"
Click for more details
aluminum-rectangle-bar-6061-t6511-extruded-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-B221 , AMS-QQ-A-200/8

Key Features

CUSTOM CUT MTR FREE MTR Available
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aluminum-rectangle-bar-6061-t6511-extruded-1superZoom-desk14515

5/16" x 1" Brass Rectangle Bar 360-H02 Extruded Part # 1430

5/16" x 1" Brass Rectangle Bar 360-H02 Extruded -
Part #: 1430
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
$27.34 for 1
$27.34 ea.

Dimensions

  • Thickness: 0.3125"
  • Width: 1"
Click for more details
brass-rectangle-bar-360-h02-extruded-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-B16

Key Features

CUSTOM CUT MTR FREE MTR Available
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brass-rectangle-bar-360-h02-extruded-1superZoom-desk1430

5/16" x 1 1/2" Brass Rectangle Bar 360-H02 Extruded Part # 1433

5/16" x 1 1/2" Brass Rectangle Bar 360-H02 Extruded -
Part #: 1433
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
$40.65 for 1
$40.65 ea.

Dimensions

  • Thickness: 0.3125"
  • Width: 1.5"
Click for more details
brass-rectangle-bar-360-h02-extruded-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-B16

Key Features

CUSTOM CUT MTR FREE MTR Available
View more product details View more product details
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brass-rectangle-bar-360-h02-extruded-1superZoom-desk1433

5/16" x 5/8" Brass Rectangle Bar 360-H02 Extruded Part # 23664

5/16" x 5/8" Brass Rectangle Bar 360-H02 Extruded -
Part #: 23664
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
$21.45 for 1
$21.45 ea.

Dimensions

  • Thickness: 0.3125"
  • Width: 0.625"
Click for more details
brass-rectangle-bar-360-h02-extruded-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-B16

Key Features

CUSTOM CUT MTR FREE MTR Available
View more product details View more product details
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brass-rectangle-bar-360-h02-extruded-1superZoom-desk23664

5/16" x 1/2" Brass Rectangle Bar 360-H02 Extruded Part # 19817

5/16" x 1/2" Brass Rectangle Bar 360-H02 Extruded -
Part #: 19817
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
$13.67 for 1
$13.67 ea.

Dimensions

  • Thickness: 0.3125"
  • Width: 0.5"
Click for more details
brass-rectangle-bar-360-h02-extruded-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-B16

Key Features

CUSTOM CUT MTR FREE MTR Available
View more product details View more product details
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brass-rectangle-bar-360-h02-extruded-1superZoom-desk19817

5/16" x 2" Brass Rectangle Bar 360-H02 Extruded Part # 22528

5/16" x 2" Brass Rectangle Bar 360-H02 Extruded -
Part #: 22528
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
$54.45 for 1
$54.45 ea.

Dimensions

  • Thickness: 0.3125"
  • Width: 2"
Click for more details
brass-rectangle-bar-360-h02-extruded-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-B16

Key Features

CUSTOM CUT MTR FREE MTR Available
View more product details View more product details
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brass-rectangle-bar-360-h02-extruded-1superZoom-desk22528

5/16" x 3/4" Carbon Steel Rectangle Bar 1018 Cold Finish Part # 7352

5/16" x 3/4" Carbon Steel Rectangle Bar 1018 Cold Finish -
Part #: 7352
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
$6.75 for 1
$6.75 ea.

Dimensions

  • Thickness: 0.3125"
  • Width: 0.75"
Click for more details
mild-steel-rectangle-bar-1018-cold-finish-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A108

Key Features

CUSTOM CUT MTR FREE MTR Available
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mild-steel-rectangle-bar-1018-cold-finish-1superZoom-desk7352

5/16" x 1" Carbon Steel Rectangle Bar A36 Hot Rolled Part # 10041

5/16" x 1" Carbon Steel Rectangle Bar A36 Hot Rolled -
Part #: 10041
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
$5.66 for 1
$5.66 ea.

Dimensions

  • Thickness: 0.3125"
  • Width: 1"
Click for more details
mild-steel-rectangle-bar-hot-rolled-a36-1superZoom-mob{product.code}

Key Features

CUSTOM CUT MTR FREE MTR Available
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mild-steel-rectangle-bar-hot-rolled-a36-1superZoom-desk10041

5/16" x 1 1/2" Carbon Steel Rectangle Bar A36 Hot Rolled Part # 10043

5/16" x 1 1/2" Carbon Steel Rectangle Bar A36 Hot Rolled -
Part #: 10043
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
$5.30 for 1
$5.30 ea.

Dimensions

  • Thickness: 0.3125"
  • Width: 1.5"
Click for more details
mild-steel-rectangle-bar-hot-rolled-a36-1superZoom-mob{product.code}

Key Features

CUSTOM CUT MTR FREE MTR Available
View more product details View more product details
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mild-steel-rectangle-bar-hot-rolled-a36-1superZoom-desk10043

5/16" x 2" Carbon Steel Rectangle Bar A36 Hot Rolled Part # 10045

5/16" x 2" Carbon Steel Rectangle Bar A36 Hot Rolled -
Part #: 10045
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
$8.24 for 1
$8.24 ea.

Dimensions

  • Thickness: 0.3125"
  • Width: 2"
Click for more details
mild-steel-rectangle-bar-hot-rolled-a36-1superZoom-mob{product.code}

Key Features

CUSTOM CUT MTR FREE MTR Available
View more product details View more product details
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mild-steel-rectangle-bar-hot-rolled-a36-1superZoom-desk10045

5/16" x 8" Carbon Steel Rectangle Bar A36 Hot Rolled Part # 10054

5/16" x 8" Carbon Steel Rectangle Bar A36 Hot Rolled -
Part #: 10054
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
$26.04 for 1
$26.04 ea.

Dimensions

  • Thickness: 0.3125"
  • Width: 8"
Click for more details
mild-steel-rectangle-bar-hot-rolled-a36-1superZoom-mob{product.code}

Key Features

CUSTOM CUT MTR FREE MTR Available
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mild-steel-rectangle-bar-hot-rolled-a36-1superZoom-desk10054

5/16" x 3/4" Aluminum Rectangle Bar 6061-T6511-Extruded Part # 20944

5/16" x 3/4" Aluminum Rectangle Bar 6061-T6511-Extruded -
Part #: 20944
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
$5.09 for 1
$5.09 ea.

Dimensions

  • Thickness: 0.3125"
  • Width: 0.75"
Click for more details
aluminum-rectangle-bar-6061-t6511-extruded-1superZoom-mob{product.code}

Key Features

CUSTOM CUT MTR FREE MTR Available
View more product details View more product details
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aluminum-rectangle-bar-6061-t6511-extruded-1superZoom-desk20944

5/16" x 4" Aluminum Rectangle Bar 6061-T6511-Extruded Part # 22098

5/16" x 4" Aluminum Rectangle Bar 6061-T6511-Extruded -
Part #: 22098
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
$26.58 for 1
$26.58 ea.

Dimensions

  • Thickness: 0.3125"
  • Width: 4"
Click for more details
aluminum-rectangle-bar-6061-t6511-extruded-1superZoom-mob{product.code}
Material Meets These Standard(s): AMS-QQ-A-200/8 , ASTM-B221

Key Features

CUSTOM CUT MTR FREE MTR Available
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aluminum-rectangle-bar-6061-t6511-extruded-1superZoom-desk22098

5/16" x 2" Aluminum Rectangle Bar 6061-T6-Extruded Part # 23677

5/16" x 2" Aluminum Rectangle Bar 6061-T6-Extruded -
Part #: 23677
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
$9.67 for 1
$9.67 ea.

Dimensions

  • Thickness: 0.3125"
  • Width: 2"
Click for more details
aluminum-rectangle-bar-6061-t6511-extruded-1superZoom-mob{product.code}

Key Features

CUSTOM CUT MTR FREE MTR Available
View more product details View more product details
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aluminum-rectangle-bar-6061-t6511-extruded-1superZoom-desk23677

5/16" x 1/2" Carbon Steel Rectangle Bar 1018 Precision Ground Part # 12031

5/16" x 1/2" Carbon Steel Rectangle Bar 1018 Precision Ground -
Part #: 12031
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
$48.95 for 1
$48.95 ea.

Dimensions

  • Thickness: 0.3125"
  • Width: 0.5"
Click for more details
tool-steel-rectangle-bar-1018-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A681

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-1018-1superZoom-desk12031

5/16" x 3/4" Carbon Steel Rectangle Bar 1018 Precision Ground Part # 12032

5/16" x 3/4" Carbon Steel Rectangle Bar 1018 Precision Ground -
Part #: 12032
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
$55.47 for 1
$55.47 ea.

Dimensions

  • Thickness: 0.3125"
  • Width: 0.75"
Click for more details
tool-steel-rectangle-bar-1018-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A681

Key Features

MTR FREE MTR Available
View more product details View more product details
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tool-steel-rectangle-bar-1018-1superZoom-desk12032

5/16" x 1 1/4" Carbon Steel Rectangle Bar 1018 Precision Ground Part # 12034

5/16" x 1 1/4" Carbon Steel Rectangle Bar 1018 Precision Ground -
Part #: 12034
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
$71.00 for 1
$71.00 ea.

Dimensions

  • Thickness: 0.3125"
  • Width: 1.25"
Click for more details
tool-steel-rectangle-bar-1018-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A681

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-1018-1superZoom-desk12034

5/16" x 1" Carbon Steel Rectangle Bar 1018 Precision Ground Part # 12033

5/16" x 1" Carbon Steel Rectangle Bar 1018 Precision Ground -
Part #: 12033
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
$65.42 for 1
$65.42 ea.

Dimensions

  • Thickness: 0.3125"
  • Width: 1"
Click for more details
tool-steel-rectangle-bar-1018-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A681

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-1018-1superZoom-desk12033

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