Passivated Stainless Steel Breadboards

Through-Tapped 1/4"-20 (M6) Mounting Holes
Custom Sizes Available
Out-of-the-Box Vacuum Compatible Down to 10^-6 Torr

MB4S

4" x 4"
1/4"-20 Taps

MB46S

4" x 6"
1/4"-20 Taps

MB6S

6" x 6"
1/4"-20 Taps

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Overview
Weights & Dims
Feedback
BB Selection Guide

Specification	Imperial Boards	Metric Boards
Material	416 Stainless Steel
Flatness	±0.006" over 1 ft²	±0.15 mm over 0.09 m²
Breadboard Thickness	1/2"	12.7 mm
Hole Size and Spacing	1/4"-20 Tapped Holes on 1" Centers	M6 Tapped Holes on 25 mm Centers
Distance from Edge to First Hole	1/2" on All Sides	12.5 mm on All Sides
Number of Counterbored Holes	Four 1/4" Located at Corners Inset 1"	Four M6 Located at Corners Inset 25 mm

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View Imperial Product List

Item #	Qty	Description
MB612F	1	Aluminum Breadboard, 6" x 12" x 1/2", 1/4"-20 Taps
MB4S	1	Passivated Stainless Steel Breadboard, 4" x 4" x 1/2", 1/4"-20 Taps
PH1E	1	Ø1/2" Pedestal Post Holder, Spring-Loaded Hex-Locking Thumbscrew, L=1.19"
TR1	1	Ø1/2" Optical Post, SS, 8-32 Setscrew, 1/4"-20 Tap, L = 1"
POLARIS-K1S5	1	Polaris^® Ø1" Mirror Mount, 3 Hex Adjusters with Side Holes, Monolithic Optic Retention
PF10-03-M01	1	Ø1" Protected Gold Mirror

View Metric Product List

Item #	Qty	Description
MB1530F/M	1	Aluminum Breadboard, 150 mm x 300 mm x 12.7 mm, M6 Taps
MB10S/M	1	Passivated Stainless Steel Breadboard, 100 mm x 100 mm x 12.7 mm, M6 Taps
PH30E/M	1	Ø12.7 mm Pedestal Post Holder, Spring-Loaded Hex Locking Thumbscrew, L=34.7 mm
TR30/M	1	Ø12.7 mm Optical Post, SS, M4 Setscrew, M6 Tap, L = 30 mm
POLARIS-K1S5	1	Polaris^® Ø1" Mirror Mount, 3 Hex Adjusters with Side Holes, Monolithic Optic Retention
PF10-03-M01	1	Ø1" Protected Gold Mirror

Stainless Steel Breadboard Mounted to Aluminum Breadboard for Magnetic Components

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View Imperial Product List

Item #	Qty	Description
MB46S	1	Passivated Stainless Steel Breadboard, 4" x 6" x 1/2", 1/4"-20 Taps
BA1SV	1	Mounting Base, 1" x 2.3" x 3/8", Vacuum Compatible
PH1.5V	1	Ø1/2" Post Holder with Hex-Locking Thumbscrew, L = 1.5", Vacuum Compatible
TR1.5V	1	Ø1/2" Vacuum-Compatible Optical Post, 8-32 Setscrew, 1/4"-20 Tap, L = 1.5"
POLARIS-K1S5	1	Polaris^® Ø1" Mirror Mount, 3 Hex Adjusters with Side Holes, Monolithic Optic Retention
PF10-03-M01	1	Ø1" Protected Gold Mirror

View Metric Product List

Item #	Qty	Description
MB1015S/M	1	Passivated Stainless Steel Breadboard, 100 mm x 150 mm x 12.7 mm, M6 Taps
BA1SV/M	1	Mounting Base, 25 mm x 58 mm x 10 mm, Vacuum Compatible
PH30V/M	1	Ø12.7 mm Post Holder with Hex-Locking Thumbscrew, L = 30 mm, Vacuum Compatible
TR30V/M	1	Ø12.7 mm Vacuum-Compatible Optical Post, M4 Setscrew, M6 Tap, L = 30 mm
POLARIS-K1S5	1	Polaris^® Ø1" Mirror Mount, 3 Hex Adjusters with Side Holes, Monolithic Optic Retention
PF10-03-M01	1	Ø1" Protected Gold Mirror

Stainless Steel Breadboard with Vacuum Compatible Components

Features

Passivated Stainless Steel Breadboards
Vacuum-Compatible Down to 10^-6 Torr Out of the Box
May be Attached to our Aluminum Breadboards to Add Magnetic Capabilities
Standard Imperial (1/4"-20) and Metric (M6) Breadboard Hole Patterns
Offset Counterbored Mounting Holes Allow a Full, Uninterrupted, Threaded Hole Matrix

Thorlabs' passivated stainless steel, 1/2" (12.7 mm) thick breadboards provide a stiff, magnetic, and vacuum-compatible surface for mounting small subsystems. Breadboards are through tapped in a standard 1" (imperial) or 25 mm (metric) hole pattern offset 1/2" or 12.5 mm, respectively, from the edges of the board. Four standard 1/4" (M6) mounting holes are counterbored to create an uninterrupted surface for your application.

The 1/4"-20 (M6) tapped holes are threaded completely through these breadboards, allowing components to be mounted on either side. The four standard mounting holes are located at each corner of the breadboard, inset 1" from each edge on imperial breadboards (25 mm on metric). Ø1.5" mounting posts can increase the height of these breadboards by securing them to the surface of an optical table (or another breadboard). The counterbored mounting holes allow for these breadboards to be attached to any of our non-magnetic aluminum breadboards, providing a means to use magnetic bases or other magnetic accessories. The mounting holes may be used to attached the breadboards to optical tables, other breadboards, mounting posts, brackets, or a variety of other surfaces or mounts.

These breadboards may also be used within a vacuum environment down to 10^-6 Torr. After passivation, breadboards are double bagged in a clean environment to eliminate contamination when transported into a cleanroom. Gloves should be used when handling breadboards to prevent surface contamination from skin oils. For use in a sensitive vacuum system, a thorough pre-baking in a bake-out oven should be performed to remove all moisture and surface volatiles. Additional cleaning may be needed depending on the system requirements. For additional information on preparing these breadboards for vacuum applications, please contact Tech Support.

Custom sizes are available; contact Tech Support for more information. We also offer a broad selection of solid aluminum breadboards and steel and aluminum honeycomb breadboards. For vacuum chamber applications, unanodized solid aluminum breadboards are also available in a variety of sizes. For a quick comparison of our different breadboard options, please see the BB Selection Guide tab.

Item #	Dimensions (L x W x H)^a	Unpackaged Weight	Packaged Shipping Weight^b
Item #	Dimensions (L x W x H)^a	Unpackaged Weight	Packaged Shipping Weight^b	Imperial
MB4S	4" x 4" x 1/2"	2.45 lbs	2.73 lbs
MB46S	4" x 6" x 1/2"	3.51 lbs	3.81 lbs
MB6S	6" x 6" x 1/2"	5.16 lbs	5.45 lbs
Metric
MB10S/M	100 mm x 100 mm x 12.7 mm	1.11 kg	1.24 kg
MB1015S/M	100 mm x 150 mm x 12.7 mm	1.59 kg	1.73 kg
MB15S/M	150 mm x 150 mm x 12.7 mm	2.34 kg	2.46 kg

Custom sizes are available. For more information, please contact Tech Support.
These weights are approximate and are subject to change. The information is only to be used as a guideline.

Posted Comments:

Ludo Angot (posted 2019-09-11 15:25:22.53)

Hello, this is a nice addition to your product line and I've ordered one of these. However, for the use case of adding magnetic functionality to an aluminum breadboard, may I suggest you offer a thinner version of these breadboards? You could for example use the same 5 mm thickness as your Nexus series steel skin. The newly designed steel breadboard could be blank with just 4 mounting holes to attach to an existing breadboard or have a set of clearance holes with the same spacing as metric or imperial breadboards. This design would be more economical for your customers and serves the useful purpose of having a magnetic flat surface.

llamb (posted 2019-09-11 11:35:06.0)

Thank you for your feedback! I have added this idea to our internal product forum for further review.

Breadboards	Nexus, Optimized Damping	Intrinsically Damped	Aluminum Honeycomb	Stainless Steel	Solid Aluminum
Construction
Breadboard Thickness	60 mm (2.4") 110 mm (4.3")	58 mm (2.28")	25 mm (0.98") 55 mm (2.2")	12.7 mm (0.5")	7.0 mm (0.28") 9.5 mm (0.375") 12.7 mm (0.5") 19.05 mm (0.75")
Working Surface	4003 Grade Stainless Steel or 304L Grade Nonmagnetic Steel Top Plate	4003 Grade Stainless Steel Top Plate	Aluminum	416 Grade Stainless Steel	Solid Aluminum Anodized or Unanodized
Top Skin	5 mm (0.20")	5 mm (0.20")	6 mm (0.24")	N/A	N/A
Bottom Skin	5 mm (0.20")	3 mm (0.12")	3 mm (0.12")	N/A	N/A
Core Design	High-Density Plated Steel Honeycomb, 0.26 mm Thick		High-Density Plated Aluminum Honeycomb	N/A	N/A
Side Panels	Rigid Steel Box Section	Unplasticized Polyvinyl Chloride (uPVC)	Black Laminated Aluminum Sides	N/A	N/A
Ferromagnetism	Magnetic or Non-Magnetic Options	Magnetic	Non-Magnetic	Magnetic	Non-Magnetic
Sealed Holes	Sealed (25 mm Depth) or Non-Sealed Options	Non-Sealed		N/A	N/A
Thread Options	1/4"-20 (M6) Tapped Holes	1/4"-20 (M6) Tapped Holes		1/4"-20 (M6) Tapped Holes	1/4"-20 (M6), 4-40 (M3), or 8-32 (M3) and 1/4"-20 (M6) Tapped Holes
Spacing	1" (25 mm) Centers	1" (25 mm) Centers		1" (25 mm) Centers	1" (25 mm) Centers or 0.5" (12.7 mm) Centers
Distance from Edge to First Holes	0.5" (12.5 mm) on all Sides		0.5" (12.5 mm) or 1.0" (25 mm) on all Sides	0.5" (12.5 mm) on all Sides	0.5" (12.5 mm) on all Sides
Performance^a
Damping				N/A	N/A
Stiffness	60 mm (2.4") Thick	58 mm (2.28") Thick	25 mm (0.98") Thick	12.7 mm (0.5") Thick	7.0 mm (0.28") Thick
Stiffness	110 mm (4.3") Thick	58 mm (2.28") Thick	55 mm (2.2") Thick	12.7 mm (0.5") Thick	19.05 mm (0.75") Thick

The damping and stiffness performance shown here is qualitative and does not relate to exact specifications of each breadboard.

Optical Breadboard Selection Guides

The selection guides below list every size offered for our honeycomb, solid aluminum, and acrylic breadboards. Simply locate the specific width and length needed and then select the type of breadboard. Expand each table by clicking the More [+] button within the header.

Thorlabs also offers several unique breadboard solutions. For applications requiring temperature control, we offer anodized aluminum water cooled breadboards in several sizes, in addition to a temperature-controlled mini-series breadboard for small-scale operations. Our anodized aluminum large-area translation stages and rotating breadboards offer hand-operated positioning control, while our manual and motorized translating mounting platforms are ideal for use in microscopy applications.

Imperial Optical Breadboard Size Options
Width	Length	Honeycomb					Stainless Steel	Solid Aluminum^a
Width	Length	Nexus (60 mm Thick)^b	Nexus (110 mm Thick)^b	Intrinsically Damped (58 mm Thick)	Aluminum (25 mm Thick)	Aluminum (55 mm Thick)	Stainless Steel	Standard	Double Density	High Density

Solid aluminum breadboards are offered with four different thicknesses: 0.5" (item # prefix MB), 0.75" (item # prefix MBH), 3/8" (item # prefix MS), or 0.28" (item # prefix MS). Select sizes are also available without an anodized coating (item #s ending with U).
Item Number Suffix:

F, A, B, or G: Non-Sealed Mounting Holes
T, L, U, or N: Sealed Mounting Holes
FN or AN: Nonmagnetic Mounting Holes
Y or Z: No Mounting Holes
S: Stainless Steel

Tapped Hole Pattern Aligned at 45°
Build-to-Order
Includes a T-Slot in Side Panels for Compatibility with 25 mm Rail Accessories
This product has an access aperture.

Metric Optical Breadboard Size Options
Width	Length	Honeycomb					Stainless Steel	Solid Aluminum^a
Width	Length	Nexus (60 mm Thick)^b	Nexus (110 mm Thick)^b	Intrinsically Damped (58 mm Thick)	Aluminum (25 mm Thick)	Aluminum (55 mm Thick)	Stainless Steel	Standard	Double Density	High Density

50 mm	75 mm	-	-	-	-	-	-	-	-	MSB5075/M
75 mm	100 mm	-	-	-	-	-	-	-	-	MSB7510/M
75 mm	150 mm	-	-	-	-	-	-	-	-	MSB7515/M
100 mm	100 mm	-	-	-	-	-	MB10S/M	-	-	-
100 mm	150 mm	-	-	-	-	-	MB1015S/M	MB1015/M MB1015U/M	M45B1015/M^c	MSB1015/M
100 mm	300 mm	-	-	-	-	-	-	MB1030/M	-	-
100 mm	600 mm	-	-	-	-	-	-	-	MB1060/M	-
100 mm	900 mm	-	-	-	-	-	-	-	MB1090/M	-
Ø149 mm		-	-	-	-	-	-	-	MBR150U/M	-
Ø150 mm		-	-	-	-	-	-	-	MBR150/M	-
150 mm	150 mm	-	-	-	-	-	MB15S/M	MB1515/M MB1515U/M	M45B1515/M^c	MSB15/M
150 mm	300 mm	-	-	-	-	-	-	MB1530F/M	MB1530/M M45B1530/M^c	-
150 mm	450 mm	-	-	-	-	-	-	MB1545/M	-	-
150 mm	600 mm	-	-	-	-	-	-	MB1560/M	-	-
150 mm	900 mm	-	-	-	-	-	-	MB1590/M	-	-
150 mm	1200 mm	-	-	-	-	-	-	MB15120/M	-	-
180 mm	230 mm	-	-	-	-	-	-	-	-	MSB1823/M MSBU1823/M
200 mm	200 mm	-	-	-	-	-	-	MB2020/M MB2020U/M	-	-
200 mm	250 mm	-	-	-	-	-	-	MB2025/M	-	-
200 mm	600 mm	-	-	-	-	-	-	-	MB2060/M	-
200 mm	900 mm	-	-	-	-	-	-	-	MB2090/M	-
250 mm	300 mm	-	-	-	-	-	-	MB2530/M MB2530U/M	-	-
Ø300 mm		-	-	-	-	-	-	-	MBR300/M MBR300U/M	-
300 mm	300 mm	B3030A^d B3030L^d	-	-	PBG3030A^e	-	-	MB3030/M MB3030U/M	MB3030D/M	MS12B/M MSB30/M
300 mm	450 mm	B3045A^d B3045L^d	-	B3045AX	PBG3045A^e	-	-	MB3045/M MB3045A/M^f MB3045U/M	-	MSB3045/M
300 mm	600 mm	B3060A^d B3060L	-	B3060AX^d	PBG3060A	PBG52502^d	-	MB3060/M MB3060U/M	-	-
300 mm	900 mm	B3090A^d B3090L^d	-	-	PBG3090A^e	PBG52503^d	-	MB3090/M	-	-
300 mm	1200 mm	-	-	-	-	-	-	MB30120/M	-	-
350 mm	1150 mm	-	-	-	-	-	-	MB35115/M	-	-
350 mm	1425 mm	-	-	-	-	-	-	MB35142/M	-	-
450 mm	450 mm	B4545A^d B4545L^d	-	-	PBG4545A	-	-	MB4545/M	-	-
450 mm	600 mm	B4560A^d B4560L^d	-	B4560AX^d	PBG4560A^e	PBG52522^d	-	MB4560/M MB4560A/M^f MB4560U/M	-	-
450 mm	750 mm	-	-	-	-	-	-	MB4575/M	-	-
450 mm	900 mm	-	-	-	-	-	-	MB4590/M	-	-
600 mm	600 mm	B6060A^d B6060L	-	B6060AX^d	PBG6060A^e	PBG52505^d	-	MB6060/M	-
600 mm	900 mm	B6090A B6090L B6090AN^d B6090Z	B6090B^d B6090N^d	B6090AX	PBG6090A^e	PBG52506^d	-	MB6090/M	-	-
600 mm	1200 mm	B60120A B60120L	B60120B^d B60120N^d	B60120AX	PBG60120A^e	-	-	MB60120/M	-	-
600 mm	1500 mm	-	B60150B^d B60150N^d	-	-	PBG52508^d	-	-	-	-
750 mm	750 mm	B7575A B7575L	-	-	-	-	-	MB7575/M	-	-
750 mm	900 mm	B7590A B7590L B7590AN^d B7590Z	B7590B^d B7590N^d	B7590AX	PBG7590A^e	PBG52510^d	-	-	-	-
750 mm	1200 mm	B75120A B75120L B75120AN^d B75120Z	B75120B B75120N^d	B75120AX	PBG75120A^e	PBG52511	-	-	-	-
750 mm	1500 mm	-	B75150B B75150N	B75150AX	-	-	-	-	-	-
900 mm	900 mm	B9090A B9090L	B9090B^d B9090N^d	-	-	-	-	-	-	-
900 mm	1200 mm	B90120A B90120L B90120AN B90120Z	B90120B B90120N	B90120AX	PBG90120A^e	PBG52513	-	-	-	-
900 mm	1500 mm	-	B90150B B90150N	B90150AX	-	PBG52514	-	-	-	-
900 mm	1800 mm	-	B90180B B90180N	B90180AX	-	-	-	-	-	-
1200 mm	1500 mm	-	B120150B^d B120150N^d	-	-	-	-	-	-	-
1200 mm	1800 mm	-	B120180B B120180N^d	-	-	-	-	-	-	-

Solid aluminum breadboards are offered with four different thicknesses: 12.7 mm (item # prefix MB), 19.05 mm (item # prefix MBH), 9.5 mm (item # prefix MS), or 7.0 mm (item # prefix MS). Select sizes are also available without an anodized coating (item #s ending with U).
Item Number Suffix:

F, A, B, or G: Non-Sealed Mounting Holes
T, L, U, or N: Sealed Mounting Holes
FN or AN: Nonmagnetic Mounting Holes
Y or Z: No Mounting Holes
S: Stainless Steel

Tapped Hole Pattern Aligned at 45°
Build-to-Order
Includes a T-Slot in Side Panels for Compatibility with 25 mm Rail Accessories
This product has an access aperture.

2"	3"	-	-	-	-	-	-	-	-	MSB23
3"	4"	-	-	-	-	-	-	-	-	MSB34
3"	6"	-	-	-	-	-	-	-	-	MSB36
4"	4"	-	-	-	-	-	MB4S	MB4U	-	-
4"	6"	-	-	-	-	-	MB46S	MB4	M45B4^c	MSB46
4"	12"	-	-	-	-	-	-	MB412	-	-
4"	24"	-	-	-	-	-	-	-	MB424	-
4"	36"	-	-	-	-	-	-	-	MB436	-
Ø5.87"		-	-	-	-	-	-	-	MBR6U	-
Ø6"		-	-	-	-	-	-		MBR6	-
6"	6"	-	-	-	-	-	MB6S	MB6 MB6U	M45B6^c	MSB6
6"	12"	-	-	-	-	-	-	MB612F	MB612 M45B612^c	-
6"	18"	-	-	-	-	-	-	MB618	-	-
6"	24"	-	-	-	-	-	-	MB624	-	-
6"	36"	-	-	-	-	-	-	MB636	-	-
6"	48"	-	-	-	-	-	-	MB648	-	-
7.09"	9.06"	-	-	-	-	-	-	-	-	MSB1823 MSBU1823
8"	8"	-	-	-	-	-	-	MB8 MB8U	-	-
8"	10"	-	-	-	-	-	-	MB810 MB810U	-	-
8"	24"	-	-	-	-	-	-	-	MB824	-
8"	36"	-	-	-	-	-	-	-	MB836	-
10"	12"	-	-	-	-	-	-	MB1012 MB1012U	-	-
Ø12"		-	-	-	-	-	-	-	MBR12 MBR12U	-
12"	12"	B1212F B1212T^d	-	-	PBG1212F^e	-	-	MB12 MB12U	MB12D	MSB12 MS12B
12"	18"	B1218F B1218T	-	B1218FX	PBG1218F^e	-	-	MB1218 MB1218U MB1218A^f	-	MSB1218
12"	24"	B1224F B1224T^d	-	B1224FX	PBG1224F^e	PBG12102^d	-	MB1224 MB1224U	-	-
12"	36"	B1236F B1236T^d	-	-	PBG1236F^e	PBG12103^d	-	MB1236	-	-
12"	48"	-	-	-	-	-	-	MB1248	-	-
14"	45"	-	-	-	-	-	-	MB1445	-	-
14"	56"	-	-	-	-	-	-	MB1456	-	-
18"	18"	B1818F B1818T	-	-	PBG1818F^e	-	-	MB18	-	-
18"	24"	B1824F B1824T	-	B1824FX	PBG1824F^e	PBG12118	-	MB1824 MB1824U MB1824A^f	-	-
18"	30"	-	-	-	-	-	-	MB1830	-	-
18"	36"	-	-	-	-	-	-	MB1836	-	-
24"	24"	B2424F B2424T	-	B2424FX	PBG2424F^e	PBG12105	-	MB2424	-	-
24"	36"	B2436F B2436T B2436FN^d B2436Y	B2436G^d B2436U^d	B2436FX	PBG2436F^e	PBG12106	-	MB2436	-	-
24"	48"	B2448F B2448T	B2448G^d B2448U^d	B2448FX	PBG2448F^e	-	-	MB2448	-	-
24"	60"	-	B2460G^d B2460U^d	-	-	PBG12108^d	-	-	-	-
30"	30"	B3030F B3030T^d	-	-	-	-	-	MB30	-	-
30"	36"	B3036F B3036T B3036FN^d B3036Y	B3036G^d B3036U^d	B3036FX	PBG3036F^e	PBG12110	-	-	-	-
30"	48"	B3048F B3048T B3048FN^d B3048Y	B3048G^d B3048U^d	B3048FX	PBG3048F^e	PBG12111	-	-	-	-
30"	60"	-	B3060G B3060U^d	B3060FX	-	-	-	-	-	-
36"	36"	B3636F B3636T	B3636G^d B3636U^d	-	-	-	-	-	-	-
36"	48"	B3648F B3648T B3648FN^d B3648Y	B3648G B3648U	B3648FX	PBG3648F^e	PBG12113	-	-	-	-
36"	60"	-	B3660G B3660U	B3660FX	-	PBG12114	-	-	-	-
36"	72"	-	B3672G B3672U^d	B3672FX	-	-	-	-	-	-
48"	60"	-	B4860G^d B4860U^d	-	-	-	-	-	-	-
48"	72"	-	B4872G B4872U^d	-	-	-	-	-	-	-

Passivated Stainless Steel Breadboards

Features

Optical Breadboard Selection Guides

Passivated Stainless Steel Breadboards, Imperial

Passivated Stainless Steel Breadboards, Metric