Cut Sheet

Beam Clamps
All dimensions in charts and on drawings are in inches. Dimensions shown in parentheses are in millimeters unless otherwise specified.
Beam Clamps
38
Pipe Hangers & Supports
Size Range:
3
/8"-16 &
1
/2"-13 rod
4” (101,6mm) thru 16” (406.4mm) lengths
Note: longer lengths are available consult factory
Material: Pre-Galvanized Steel
Function: To offer more secure fastening of various types of
beam clamps to beam where danger of movement might be
expected. NFPA 13 requires the use of retaining straps with
all beam clamps installed in earthquake areas. Satisfies
requirements of NFPA 13.
Features: Beveled locking slot* is precisely formed to align
with the threaded section of a hanger rod or set screw and
engage the unit securely. May be used as shown in Section
“A-A” or inverted. Allows easy installation for new construction
or retrofit applications.
Important Note: Good installation practice of a retaining
strap requires that the strap be held tightly and securely to all
component parts of the assembly. Therefore a locking
mechanism of some kind, such as a hex nut or the beveled
locking slot of the Fig. 69R will provide a more secure reliable
installation.
Approvals: Underwriters Laboratories Listed in the USA (UL)
and Canada (cUL). Approved for use with any listed beam
clamp. Included in the Seismic Restraints Catalog approved
by the State of California Office of Statewide Health Planning
and Development (OSHPD). For additional load spacing and
placement information relating OSHPD projects, please refer
to the Seismic Restraint System Guidelines.
Finish: Pre-Galvanized
Order By: Part number, length, and finish.
Note: Minimum return on strap is 1”
(25.4mm)
* Patent #5,947,424
Fig. 69R - Retrofit Capable Beam Clamp Retaining Strap
Slot Width For Use With Length
Part No.
in. (mm)
69R-
3
/
8
-L
7
/
16
” (30.1)
B3033-
3
/8, B3034-
3
/8, B3031-
3
/8,
Specify
65-
3
/8, 65XT-
3
/8, 66-
3
/8
69R-
1
/2-L
9
/16” (30.1) B3033-
1
/2, B3034-
1
/2, 65-
1
/2, 66-
1
/2 Specify
Component of State of
California OSHPD Approved
Seismic Restraints System
A
A
A - A