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For Suspending For Suspending |
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| Lower Bracket | Upper Bracket |
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Mount Type Mount Type |
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Specifications Met Specifications Met |
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Capacity per Mount Capacity per Mount |
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About Vibration-Damping Mounts
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Seismic Bracing Anchors and Brackets
These OSHPD approved anchors and brackets support threaded-rod-mount hangers during seismic activity. A complete seismic bracing system consists of an upper bracket, a lower bracket, and strut or pipe (sold separately). Brackets work with standard-wall (Schedule 40) pipe sizes 1-2 as well as 1 5/8" wide strut channel. Mount the upper bracket directly to a ceiling or other flat surface, or use an anchor to mount the system to angles, beams, and joists.
Upper brackets connect to the upper end of the strut or pipe. Mount directly into the ceiling, or combine with a beam anchor or angle iron anchor for additional mounting options. Brackets have a hinge that allows the system to sway during seismic activity.
Lower brackets connect threaded rod to the lower end of the strut or pipe. They have a hinge that allows the system to sway during seismic activity.
Beam anchors allow you to mount upper brackets to beams, C-channel, ceiling joists, and other flat surfaces. Their set screws have heads that break off when the screw is tightened to ensure proper installation.
Angle iron anchors allow you to mount upper brackets to pairs of angles, such as those used in ceiling joists. Their set screws have heads that break off when the screw is tightened to ensure proper installation.
| For Suspending | For Pipe Schedule | For Strut Thick. | For Threaded Rod Dia. | Threaded Rod Included | Wd. | Lg. | Ht. | Material | Cap., lbs. | Mounting Hole Dia. | No. of Set Screws Included | Specifications Met | Includes | Each | |
Upper Bracket for Anchor and Ceiling | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Pipe, Strut | 40 | 7/64" | __ | __ | 1 7/8" | 5 1/4" | 2 7/8" | Steel | 1,000 | 17/32" | 1 | C-UL Listed FM Approved OSHPD Approved UL Listed | Set Screws | 0000000 | 000000 |
Lower Bracket for Pipe and Strut Channel | |||||||||||||||
| Threaded Rod | 40 | 7/64" | 3/8"-5/8" | No | 2 1/4" | 5 1/8" | 1 13/16" | Zinc-Plated Steel | 1,000 | __ | 2 | OSHPD Approved | Set Screws | 0000000 | 00000 |
For Beam Thick. | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Min. | For Max. Beam Thick. | Wd. | Lg. | Ht. | Material | Cap., lbs. | No. of Set Screws Included | Specifications Met | Includes | Each | |
Beam Anchor | |||||||||||
| 3/8" | 7/8" | 2 3/8" | 2 3/4" | 3 9/16" | Steel | 1,000 | 2 | C-UL Listed FM Approved OSHPD Approved UL Listed | 1/2" Bolt and Nut, Set Screws | 0000000 | 000000 |
Angle Iron Anchor | |||||||||||
| __ | 3/8" | 3 5/16" | 3" | 2 1/2" | Steel | 1,000 | 2 | C-UL Listed FM Approved OSHPD Approved UL Listed | 1/2" Bolt and Nut, Set Screws | 0000000 | 00000 |
Seismic Bolt-Down Vibration-Damping
Mounts with Threaded Hole
Limit damage during moderate earthquakes. These mounts have a seismic rating of 1g (acceleration of gravity) and dissipate vibration and noise in compression and shear load applications. Use the holes in the base to bolt down these mounts to keep your equipment stationary. Neoprene rubber has good resistance to oil and gasoline. Mounts come with a bolt and washer for height adjustment.
For technical drawings and 3-D models, click on a part number.
Mounting Holes | ||||||||||||||||
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| Thread Size | Thread Lg. | Capacity per Mount, lbs. | Deflection @ Capacity | Shear Capacity per Mount, lbs. | Deflection @ Shear Capacity | O'all Ht. | Dia. | Base Lg. | Base Wd. | Hardness | Temperature Range, °F | Mounting Fasteners Included | Dia. | Ctr.-to-Ctr. | Each | |
Neoprene Rubber with Steel Base and Cadmium-Plated Steel Bolt | ||||||||||||||||
| 1/2"-13 | 1 1/4" | 250 | 0.15" | 200 | 0.09" | 1.875" | 2.75" | 4.75" | 3" | Durometer 30A | -20° to 225° | No | 0.438" | 3.875", 2" | 0000000 | 000000 |
| 1/2"-13 | 1 1/4" | 525 | 0.15" | 420 | 0.09" | 1.875" | 2.75" | 4.75" | 3" | Durometer 45A | -20° to 225° | No | 0.438" | 3.875", 2" | 0000000 | 00000 |
| 1/2"-13 | 1 1/4" | 1,000 | 0.15" | 800 | 0.09" | 1.875" | 2.75" | 4.75" | 3" | Durometer 60A | -20° to 225° | No | 0.438" | 3.875", 2" | 0000000 | 00000 |
| 5/8"-11 | 1 1/4" | 1,400 | 0.15" | 400 | 0.09" | 1.875" | 3.5" | 6.25" | 3.75" | Durometer 40A | -20° to 225° | No | 0.563" | 5", 2.5" | 0000000 | 00000 |
| 5/8"-11 | 1 1/4" | 2,100 | 0.15" | 600 | 0.09" | 1.875" | 3.5" | 6.25" | 3.75" | Durometer 50A | -20° to 225° | No | 0.563" | 5", 2.5" | 0000000 | 00000 |
| 5/8"-11 | 1 1/4" | 3,500 | 0.15" | 1,000 | 0.09" | 1.875" | 3.5" | 6.25" | 3.75" | Durometer 60A | -20° to 225° | No | 0.563" | 5", 2.5" | 0000000 | 00000 |