Unistrut P2655 - 37-1/2° Stair Tread Support

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-Dipped 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.

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.

Standard Dimensions:

• 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.