Strut Services Group, Inc.

Unistrut Alabama

P1272S/P1985S-P1986S

SKU P1272S/P1985S-P1986S Categories ,
$

P1272S, P1985S & P1986S – Beam Clamp (1-5/8″ Series)

Part No. Nom. Pipe Size A D Finish Flange Thickness Product Weight / Piece (lbs)
P1272S Up to 3/4″ 1/4″ (6) 3/8″-16 x 1-1/2″ EG Up to 3/4″ (Up to 19mm) 0.39
P1272S Up to 3/4″ 1/4″ (6) 3/8″-16 x 1-1/2″ HG Up to 3/4″ (Up to 19mm) 0.413
P1272S Up to 3/4″ 1/4″ (6) 3/8″-16 x 1-1/2″ GR Up to 3/4″ (Up to 19mm) 0.39
P1985S Up to 3/4″ 3/8″ (10) 1/2″-13 x 1-1/2″ EG Up to 3/4″ (Up to 19mm) 0.62
P1985S Up to 3/4″ 3/8″ (10) 1/2″-13 x 1-1/2″ HG Up to 3/4″ (Up to 19mm) 0.657
P1985S Up to 3/4″ 3/8″ (10) 1/2″-13 x 1-1/2″ GR Up to 3/4″ (Up to 19mm) 0.62
P1986S 7/8″ to 2″ 3/8″ (10) 1/2″-13 x 1-1/2″ EG 7/8″ to 2″ (22mm – 51mm) 0.83
P1986S 7/8″ to 2″ 3/8″ (10) 1/2″-13 x 1-1/2″ HG 7/8″ to 2″ (22mm – 51mm) 0.88
P1986S 7/8″ to 2″ 3/8″ (10) 1/2″-13 x 1-1/2″ GR 7/8″ to 2″ (22mm – 51mm) 0.83

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

Note:

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 – P1272S, P1985S & P1986S
Part Number “A”
in (mm)
 Design Load Per Pair
(Use in Pairs Only)
lbs (kN)
P1272S 1/4″ (6.4) 450 (2.00)
P1985S 3/8″ (9.5) 1,000 (4.45)
P1986S 3/8″ (9.5) 900 (4.00)

Notes:

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.

Set Screw “D” is supplied with this part.

Set Screw Installation Torque:

P1272S:  60 in-lbs (7 N-m)
P1985S & P1986S:  125 in-lbs (14 N-m)

 

P1985S Allowable (Design) Loads
(lbs)
Pullout Slip Along Slip Thru
1,000 900 500

Notes:

Design loads only apply to Unistrut brand products. Look for “UNISTRUT” on the part.

Seismic design loads are for the P1985S part only and for the 2 clamp installation as shown above.

Must use clamps in pairs as shown above.

Design loads are based on static testing with a safety factor = 5 based on ultimate strength of connection.

Set Screw Installation Torque: 125 in-lbs (14 N-m)

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