U Shaped Brackets

Robexstrut is a well known supplier & dealer of U Shape brackets and framing systems. All our products comply with industry standards and are tested to ensure their reliability & durability. U Shape brackets are used as frames and supports in construction. Manufactured through sandblasting oxidation surface treatment, these brackets are lightweight at 17g, black coated, and 3 inches long. They come in various grades of stainless steel and this makes them offer the best in performance and elegance.

Get in touch with Robexstrut today for premium U Shaped Brackets for your next project!

U Shaped Brackets Specification

Material:

Fittings are made from hot-rolled, pickled, and oiled steel plates, bar, strip, or coil.
Conforms to ASTM specifications: A575, A576, A635, A1011 SS GR 33, A1011 HSLAS GR 45, or A36.
Meets or exceeds physical properties of ASTM A1011 GR 33.
Smooth surface free from scale due to pickling.
Available in stainless steel, aluminum, and fiberglass (consult factory).

Finishes:

Green Powder Coat (GR): Meets commercial standards for powder coating.
Electro-galvanized (EG): Conforms to ASTM B633 Type III SC1.
Hot-dipped galvanized (HG): Conforms to ASTM A123 or A153.
Plain (PL): Standard plain finish.
Unistrut Defender (DF): Conforms to ASTM A1059 or A1046.
*** Note: Scuffs and scratches may occur; touch-up paint recommended for a flawless finish. ***

Application:

Drawings show one application; many other applications are possible.
Channels used: P1000 (1-5/8″ square) unless noted otherwise.
9/16″ diameter holes fit 1/2″ x 15/16″ hex head cap screws and 1/2″ nuts (P1010, P3010, P4010, or P5510).
Nuts and bolts are sold separately.

Dimensions:

Imperial dimensions are in inches.
Metric dimensions are shown in parentheses or as noted (rounded to one decimal place).

Design Load:

Design load data is based on the ultimate strength of the connection with a safety factor of 2.5 (unless otherwise noted).

Beam Clamps:

Designed for W, M, S, and HP Shape beams; Standard C and Miscellaneous MC Channels; Angles; and Structural Tees.
Clamps must be used in pairs and mounted in opposite directions (where indicated).
HG finish clamps come with EG finish hardware.
Stainless steel hardware available upon request (contact factory).

Design Bolt Torque

Bolt Size

1/4″-20

5/16″-18

3/8″-16

1/2″-13

5/8″-11

3/4″-10

Rec. Torque

Ft/Lbs (N•m)

(8)

(15)

(26)

(68)

100

(136)

125

(170)

Max Torque

Ft/Lbs (N•m)

(9)

(20)

(34)

(95)

125

(170)

135

(183)

Set Screw Torque

Bolt Size

1/4″-20

5/16″-18

3/8″-16

1/2″-13

5/8″-11

3/4″-10

Set Screw Torque

In/Lbs (N•m)

(8)

(15)

(26)

(68)

100

(136)

125

(170)

Standard Dimensions for 1-5/8" (41.3 mm) Width Series Channel Fittings

Hole Diameter: 9/16″ (14.3 mm)
Hole Spacing:
- From End: 13/16″ (20.6 mm)
- On Center: 1-7/8″ (47.6 mm)
Channel Width: 1-5/8″ (41.3 mm)
Material Thickness:
- 1/4″ (6.4 mm) for steel meeting or exceeding ASTM A1011 SS GR 33
- 0.220″ (5.6 mm) for steel meeting or exceeding ASTM A1011 HSLAS GR 45

U Shape Fittings

Unistrut P2800-25 thru P2800-75 - 1 Hole, "U" Shape Fitting

Part Number	Bolt Size (in)	Hole Size (in)	Wt/100 pcs Lbs (kg)
P2800-25	1⁄4″	9⁄32″	14 6.4
P2800-37	3⁄8″	7⁄16″	14 6.4
P2800-50	1⁄2″	9⁄16″	13 5.9
P2800-62	5⁄8″	11⁄16″	13 5.9
P2800-75	3⁄4″	13⁄16″	13 5.9

Unistrut P1363A thru P1363E - 2 Hole, "U" Shape Fitting

Part Number	“A” In (mm)	Wt/100 pcs Lbs (kg)
P1363A	4 101.6	78 35.4
P1363B	5 127.0	89 40.4
P1363C	6 152.4	101 45.8
P1363D	7 177.8	112 50.8
P1363E	8 203.2	124 56.2

Unistrut P1377, P4377, P5077, P5577 "U" Shape Fitting

Part Number	For Use With	A” in (mm)	Wt/100 pcs Lbs (kg)
P1377	P1000, P1100, P2000	1^9/16 39.7	265 120
P4377	P3300,P4000,P4100	15/16 23.8	176 80
P5077	P5000	3^3/16 81.0	390 177
p5577	p5500	2^3/8 60.3	310 141

Unistrut P1048, P1049, P1050 "U" Shape Fitting

Part Number	A” in (mm)	B” in (mm)	Wt/100 pcs Lbs (kg)
P1048	7^1/4 184.2	4^1/8 104.8	105 47.6
P1049	8^1/2 215.9	5^3/8 136.5	120 54.4
P1050	10^3/8 263.5	7^1/4 184.2	130 59.0