Strut Services Group, Inc.

Unistrut Alabama

P3880

P3880 – Punch Clamp (for Seismic Braces)

The Punch Clamp can be used as a seismic brace attachment with Strut or Pipe, allowing the use of many different bracing members, easy installation, and all with just one component.

For installation, the P3880 bolt should be torqued until it punches through the wall of the Strut or Pipe. This provides a positive connection between the brace fitting and brace member.

This product is pre-approved for seismic bracing under Unistrut’s OPM-0295-13, Page 5c.5.

Part No. Finish
P3880 EG

Materials & Finishes:

  • Electrogalvanized (EG):  Conforms to ASTM B633, Type III SC1 or SC3

Seismic Design Loads with Strut

 

Notes:

Attachment requirements – For Steel: Minimum grade A36 at 1/4″ thickness. For Wood: Per Note 3 on OPM Page 1j.1. For Aluminum: Minimum grade 6061-T6 at 1/2″ thickness.

Loads are based on 1/2″ diameter HHCS bolt through minimum 1/4″ thick A36 steel with 3/4″ minimum edge distance.


Seismic Design Loads with Pipe

 

 

Notes:

Attachment requirements – For Steel: Minimum grade A36 at 1/4″ thickness. For Wood: Per Note 3 on OPM Page 1j.1. For Aluminum: Minimum grade 6061-T6 at 1/2″ thickness.

Loads are based on 1/2″ diameter HHCS bolt through minimum 1/4″ thick A36 steel with 3/4″ minimum edge distance.

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