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FIG 88
88 C-Clamp w/ Set Screw Only

Size Range: 3/8" through 3/4"

Material: Malleable iron clamp; hardened steel cup point set screw.

Finish: Plain or Zinc Plated (Hot-Dip Galvanized optional)

Service: Recommended for attachment to “W” and “M” beams where thickness of flange Z does not exceed 0.75". When clamp is used with Fig. 89 retaining clip, flange thickness may not exceed 0.62".

Approvals: Complies with Federal Specification A-A-1192A (Type 23), WW-H-171-E (Type23), ANSI/MSS SP-69 and MSS SP-58 (Type 23). UL, ULC Listed (Sizes 3/8", 1/2" and 3/4") and FM Approved (Size 3/8").

Installation: Follow recommended set screw torque values per MSS-SP-69. The Fig. 88 is only to be used on installations where the clamp cannot become dislodged from the beam.


  • Malleable body assures:
    1. Uniform quality and strength.
    2. Full thread engagement.
  • Hardened steel cup point set screw for securing to beam flange.
  • Ribbed design of clamp provides added strength.

Ordering: Specify rod size, figure number, name, length of retaining clip, if desired. (Add 2" to flange width of beam to arrive at proper length of retaining clip.) If required length is not standard, order next longer standard.


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