P1377, P4377, P5077 & P5577 - 4 Hole U-Shaped Splice

P1377-No-Dimensions.png
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Cut Sheet
Part No. Use With A Finish Product Weight / Piece (lbs)
P1377 P1000, P1100, P2000 1-9/16" EG 2.65
P1377 P1000, P1100, P2000 1-9/16" HG 2.809
P1377 P1000, P1100, P2000 1-9/16" GR 2.65
P1377 P1000, P1100, P2000 1-9/16" ZD 2.65
P1377 P1000, P1100, P2000 1-9/16" SS 2.65
P4377 P3300, P4000, P4100 15/16" EG 1.76
P4377 P3300, P4000, P4100 15/16" HG 1.76
P4377 P3300, P4000, P4100 15/16" GR 1.76
P5077 P5000 3-3/16" EG 3.8
P5077 P5000 3-3/16" GR 3.8
P5577 P5500 2-3/8" EG 2.94
P5577 P5500 2-3/8" GR 2.94

    Design Loads (Slot Up)


    Design Loads - P1377 (Slot Up)
    Average Ultimate Load "P"
    (lbs)
    Average Ultimate Bending Moment "A"
    (in-lbs)
     Average ultimate Bending Moment with 3 SF
    (in-lbs)
    Design Bending Moment
    (in-lbs)
    5,700 16,300  5,400 5,080

    Notes:
    1. Design Bending Moment only apply to UNISTRUT brand products. Look for "UNISTRUT" on the part.
    2. Design Bending Moment is based on static testing with a Safety Factor = 3.2 and is limited to the P1000 Bending Moment.
    3. 1/2" Unistrut Channel Nut and Cap Screw torqued to 50 ft-lbs required for installation.
    4. Design Bending Moment applies only to the P1377 part number.

    Design Loads (Slot Down)


    Design Loads - P1377 (Slot Down)
    Average Ultimate Load "P"
    (lbs)
    Average Ultimate Bending Moment
    (in-lbs)
     Average Ultimate Bending Moment with 3 SF
    (in-lbs)
    Design Bending Moment
    (in-lbs)
    2,800 21,000  7,000 5,080

    Notes:
    1. Design Bending Moment only apply to UNISTRUT brand products. Look for "UNISTRUT" on the part.
    2. Design Bending Moment is based on static testing with a Safety Factor = 4.1 and is limited to the P1000 Bending Moment.
    3. 1/2" Unistrut Channel Nut and Cap Screw torqued to 50 ft-lbs required for installation.
    4. Design Bending Moment applies only to the P1377 part number.

    Design Loads (P1001 Splice)


    Design Loads - P1377 (P1001 Splice)
    Average Ultimate Load "P"
    (lbs)
    Average Ultimate Bending Moment
    (in-lbs)
    Design Bending Moment
    (in-lbs)
    10,200 61,200 20,400

    Notes:
    1. Design Bending Moment only apply to UNISTRUT brand products. Look for "UNISTRUT" on the part.
    2. Design Bending Moment is based on static testing with a Safety Factor = 3.0 to the Average Ultimate Bending Moment.
    3. 1/2" Unistrut Channel Nut and Cap Screw torqued to 50 ft-lbs required for installation.
    4. Design Bending Moment applies only to the P1377 part number and used in pairs, as shown.

    General Specifications

    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

    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
    • 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.

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