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High-Density Optical Breadboards, Mini-Series and Standard Series Taps


  • Designed to Mount Standard and Mini-Series Components
  • 4-40 (M3) or Both 8-32 (M4) and 1/4"-20 (M6) Mounting Holes
  • Matte Black Anodized Finish Reduces Unwanted Reflections

MSB12

12" x 12"
8-32 and 1/4"-20 Taps

MS12B

12" x 12"
4-40 Taps

MSB46

4" x 6"
8-32 and 1/4"-20 Taps

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Breadboards with both 8-32 (M4) and 1/4"-20 (M6) high-density tapped holes feature either four or five 1/4" (M6) counterbored holes.

Features

  • High-Density Imperial or Metric Hole Patterns
    • 4-40 (M3) Taps for Mini-Series Components
    • 8-32 (M4) and 1/4"-20 (M6) Taps for Both Standard and Mini-Series Components
  • 1/2" or 12.5 mm Hole Spacing for Increased Mounting Options
  • Counterbores for Mounting Breadboards
  • Black Anodized Solid Aluminum Construction Minimizes Reflectance
  • Double-Density and Standard Versions Available
  • Custom Breadboards Available; Contact Tech Support

Thorlabs' Mini-Series breadboards are offered with either 4-40 (M3) tapped holes or both 8-32 (M4) and 1/4"-20 (M6) tapped holes, and are designed for setups where space is a premium. These high-density breadboards offer increased tapped hole density with 1/2" (12.5 mm) spacing.

Our Mini-Series line consists of components that are compatible with 4-40 (M3) or 8-32 (M4) threads. The 4-40 (M3) taps in the MS12B(/M) breadboard make it compatible with smaller 4-40 (M3) Mini-Series components, such as our Ø6 mm posts. Our other breadboards are compatible with 8-32 (M4) Mini-Series components, such as our Ø12 mm pedestal posts and MSL post holders, and also include 1/4"-20 (M6) taps for integrating larger optomechanical components, such as our Ø1/2”, Ø1”, and Ø1.5” post assemblies.

Each breadboard features four or five 1/4" (M6) counterbored holes. The four standard counterbores are located at each corner of the breadboard, inset 1" from each edge (25 mm on metric), enabling these breadboards to be mounted onto our standard breadboards, mounting feet, or post assemblies. The fifth counterbored hole is located at the center of the breadboard to reduce stress at the four corners and to increase system rigidity when mounted. Refer to the table below for more specifications.

Specification Breadboards with 4-40 (M3) Taps Breadboards with 8-32 (M4) and 1/4"-20 (M6) Taps
Threading Imperial Metric Imperial Metric
Material Aluminum Plate
Finish Matte Black Anodized
Breadboard Thickness 3/8" 9.5 mm 3/8" 9.5 mm
Flatness 0.015" (0.38 mm) over 1 ft2 (0.09 m2)
Hole Size and Spacing 4-40 Tapped Holes on 1/2" Centers M3 Tapped Holes on 12.5 mm Centers 8-32 Taps with 1/2" Spacing and 1/4"-20 Taps with 1" Spacinga M4 Taps with 12.5 mm Spacing and M6 Taps with 25 mm Spacinga
Distance from Edge
to First Hole
0.5" on All Sides 12.5 mm on All Sides 0.5" on All Sides 12.5 mm on All Sides
Number of Counterbored Holes Four 1/4"b Four M6c MSB46 and MSB6: Four 1/4"b
MSB12 and MSB1218: Five 1/4"b,d
MSB1015/M and MSB15/M: Four M6c
MSB30/M and MSB3045/M: Five M6c,d
  • Note that the 8-32 (M4) and 1/4"-20 (M6) grids overlap. See the image above and to the right.
  • Located at corners with a 1" inset.
  • Located at corners with a 25 mm inset.
  • The fifth counterbored hole is located at the center of the breadboard.

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