United StatesChange

315 Malleable Iron Purlin Clamp



  • Attaches to lower flange of metal beams or purlins
  • Supports 45° flanges up to 2” long, and 90° flanges up to 1-1/2” high
  • Conforms with Federal Specification WW-H-171 (Type 23), Manufacturers Standardization Society ANSI®/MSS-SP-58 (Type 23)


Part Number 3150037PL
Material Cast Iron
Finish Plain
Rod Size (RS) 3/8"
Flange Thickness (FT) 1" Max
A 2"
B 1 1/2"
Screw Diameter (Sc) 3/8"
Torque (TQ) 5 ft lb
Pipe Size 4" Max
Static Load (F) 400 lb
Certifications cULus
Standard Packaging Quantity 25 pc
UPC 78285639834
Setscrew must be tightened and torqued onto the sloped side of the I-beam.
Install in accordance with applicable code.
Recognizing that torque wrenches are generally not used or available on many job sites, the setscrew should be tightened so it contacts the I-beam and then an additional 1/4 to 1/2 turn added.

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ANSI is a registered trademark of American National Standards Institute.
FM is a registered certification mark of FM Approvals LLC, LTD.
UL, UR, cUL, cUR, cULus and cURus are registered certification marks of UL LLC.