Light Source Purlin Clamp 1/2" Fasteners, Black

New - These Purlin Clamps are new, however some have small scratches or cosmetic damage received in shipping.

The Light Source Purlin Clamp 1/2" is perfect for installing almost anything to bar joists, purlins and I-beams up to 1" thick. A 1/2"-13 x 2.5" fully threaded square head set screw is provided for locking onto the structural member. A 1/2"-13 x 1" grade 5 Hex Head Bolt is supplied to connect the load. Or use a 1/2"-13 TPI threaded rod to support a load at any length. The Purlin Clamp has Micro-grooves for a secure connection to beam. The 1/2" fastener Purlin Clamp body is extruded from aircraft grade aluminum and is 1" thick.

• Working Load Limit: 500 lbs
• Hardware: 1/2 x 2-1/2" Square Head Set Screw, 0.5 x 1" Hex Head Cap Screw, 1" Belleville Washer
• Dimensions: 3-3/8" x 3-7/8" x 1" thick
• Weight: 0.72 lb
• Finish: Black Anodized
• Version: Pre-2024

NOTE: These Purlin Clamps pre-date the 2024 revision. These are NOT the HD versions.

NOTE: In November 2024, the Light Source made a more conservative change in the PC line load ratings and added the -HD for a heavy duty clamp. All of the previously shipped clamps exceeded the OSHA load rating requirements with their stamped ratings, but they wanted to increase the safety margin further. There have been zero failures in the field. These changes have been done to make an even safer product going forward.