Strut Services Group, Inc.

Unistrut Alabama


SKU P2784 Categories ,

P2784 – Purlin Beam Clamp

Part No. Use With Nom. Pipe Size Finish Product Weight / Piece (lbs)
P2784-1 P1000, P1100, P2000 1-5/8″ Channel EG 1.75
P2784-2 P1001, P1101, P2001 3-1/4″ Channel EG 1.79
P2784-3 P5001, P5501 EG 1.8

Standard Dimensions (Unless Shown Otherwise on Drawing):

  • Hole Diameter:  9/16”  (14mm)
  • Hole Spacing (From End):  13/16”  (21mm)
  • Hole Spacing (On-Center):  1 7/8”  (48mm)
  • Width:  1 5/8”  (41mm)
  • Thickness:
    • 1/4”  (6.4mm) with steel meeting or exceeding ASTM A1011 SS GR 33, or
    • 0.220″ (5.6mm) with steel meeting or exceeding ASTM A1011 HSLAS GR 45


When used for mechanical supports, load capacities of brackets and fittings should be in compliance with the American Standard Code for Pressure Piping.

Materials & Finishes – Standard:

  • Base Metal: Steel conforms to ASTM A1011 SS GR 33, A1011 HSLAS GR 45, A36, A575, A576, or A635.
  • Electrogalvanized (EG):  Conforms to ASTM B633, Type III SC1
  • Unistrut Defender (DF):  Conforms to ASTM A1059
  • Hot Dip Galvanized (HG):  Conforms to ASTM A123 or A153
  • Perma-Green (GR):  Conforms to commercial standards for powder coating
  • Perma-Gold (ZD):  Conforms to ASTM B633, Type II SC1 or SC3
  • Plain (PL):  No finish

Materials & Finishes – Special Metals:

  • Stainless Steel, Type 304 (SS):  Conforms to ASTM A240 or A276, Type 304 *
  • Stainless Steel, Type 316 (ST):  Conforms to ASTM A240 or A276, Type 316 *
  • Aluminum (AL):  Conforms to ASTM B209, Type 1100F or 5052-H32 *

* These materials have different physical properties and performance characteristics. Please contact us for design support.

Design Loads – P2784
Part Number For Use With  Design Load
lbs (kN)
P2784-1 P1000, P1100, P2000 1,200 (5.34)
P2784-2 P1001, P1101, P2001 1,200 (5.34)
P2784-3 P5001, P5501 1,200 (5.34)


Design loads only apply to Unistrut brand products. Look for “UNISTRUT” on the part.
Use in pairs only.
Safety factor = 2.5 based on ultimate strength of connection.


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