Unistrut Threaded Rod

Unistrut Threaded Rod Supplier

Robexstrut is a trusted dealer and supplier of high-quality Unistrut threaded rods. A Unistrut threaded rod is a versatile metal rod used in conjunction with Unistrut metal framing systems. It is typically made of steel and features threaded ends, allowing it to be used with various nuts, washers, and other components. These rods are designed to resist corrosion, offering long-term durability. The unistrut threaded rod capacity depends on the type of rod and the connection method used. They are available in standard lengths of 6’, 10’, and 12’, and we also offer custom-length options to meet specific project requirements.

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Unistrut Threaded Rod Specification

Material :

Unistrut channel nuts are made from mild steel cold rolled coil. After stamping and machining, they are case hardened for positive biting action into the inturned edge of the Unistrut channel. Screws conform to SAE J429 GR 2 (exceeds ASTM A307). Proof Load 55KSI, Tensile Load 74 KSI.

Bolt Size & Channel Nut Astm :

1/4″ & 5/16″ – A1011 SS GR33
3/8″, 7/16″ & 1/2″ – A576 GR1015 Modified
5/8″ & 3/4″ – A36 or A675 GR60
7/8″ – A36

Finishes :

Electro-galvanized (EG), ASTM B633 type III SC1.
Hot-dipped galvanized (HG), ASTM A153.
Plain (PL)
Unistrut Defender™ (DF), ASTM A1059

Perma Green Finish :

A commercial grade finish with scuffs and scratches expected. Touch-up paint is recommended for a flawless finish.

Hardware Finish :

Hardware items like Hex Nuts, bolts, and washers are Electro-Galvanized (EG), ASTM B633 Type III SC1 finish, unless noted otherwise.

Many hardware items are available in stainless steel. Consult the factory for ordering information.

Threads :

Manufactured to meet the Unified Screw Thread standard, ANSI B1.1, coarse series (UNC) class 2.

Dimensions :

Imperial dimensions are in inches
Metric dimensions are in millimeters, rounded to one decimal place, and shown in parentheses or as noted.

Metric Dimensions :

Many Unistrut nuts, bolts, and hardware items are available in metric dimensions. Consult the factory for ordering information.

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)	6 (8)	11 (15)	19 (26)	50 (68)	100 (136)	125 (170)
Max Torque Ft/Lbs (N•m)	7 (9)	15 (20)	25 (34)	70 (95)	125 (170)	135 (183)

Load Capacity of Threaded Rod

Threaded Rod Loads for Piping Applications (based on MSS SP-58)
Nominal Dia.	Root Area In² (mm²)	Max. Safe Load at 650°F (343°C) Lbs (kN)
3/8	0.068 (43.9)	730 (3.25)
1/2	0.126 (81.3)	1,350 (6.01)
5/8	0.202 (130.3)	2,160 (9.61)
3/4	0.302 (194.8)	3,230 (14.37)
7/8	0.419 (270.3)	4,480 (19.93)
1	0.552 (356.1)	5,900 (26.24)

Threaded Rod Loads for Structural Applications (Based on AISC, Steel Construction Manual, ASD, 14th Edition. Per AISC, Allowed Tensile Stress = 0.33 * Fu)
Nominal Dia.	Nominal Area In² (mm²)	Allowed Tension Load Lbs (kN)
1/4	0.049 (31.6)	930 (4.14)
3/8	0.110 (71.0)	2,110 (9.39)
7/16	0.150 (96.8)	2,870 (12.77)
1/2	0.196 (126.5)	3,750 (16.68)
5/8	0.307 (198.2)	5,870 (26.11)
3/4	0.442 (285.4)	8,450 (37.59)
7/8	0.601 (388.0)	11,500 (51.15)
1	0.785 (506.8)	15,030 (66.86)

Features & Applications of Unistrut Threaded Rod

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Unistrut Threaded Rod

Part Number	Size (in.)	Weight Lbs (kg)	Thread Shear Lbs (kN)*	Torque Ft/Lbs (N•m)	Wt/100 pcs	4′ in Len. Lbs (kg)
200-3827	3⁄8-16	0.07	415	5	35	0.03 1.85 7 15.9
200-3828	1⁄2-13	0.12	570	10	57	0.05 2.54 14 25.9
200-3829	5⁄8-11	0.18	1,260	40	91	0.08 5.60 54 41.3
200-3830	3⁄4-10	0.28	1,700	50	133	0.13 7.56 68 60.3
200-3831	1-8	0.50	3,000	60	200	0.23 13.34 81 90.7

Material: pultruded vinyl ester resin and is gray in color.
Thread shear values shown represent a 3:1 safety factor.
Standard lengths are 4' and 8'. The part number shown is for 4' lengths.
To order eight foot lengths, add suffix “-96” to part number
(Example: F200-3827-96)

Unistrut Steel Threaded Rod

Low Carbon Steel Grade 1006 – 1010
Fy = 36,000 psi minimum
Ft = 58,000 psi minimum

Part No.	Size	Wt/100 Ft. Lbs (kg)
HTHR025	1⁄4″ x 20	13 (5.9)
HTHR031	5⁄16″ x 18	20 (9.1)
HTHR037	3⁄8″ x 16	30 (13.6)
HTHR044	7⁄16″ x 14	30 (13.6)
HTHR050	1⁄2″ x 13	53 (24.0)
HTHR062	5⁄8″ x 11	84 (38.1)
HTHR075	3⁄4″ x 10	124 (56.2)
HTHR087	7⁄8″ x 9	170 (77.1)
HTHR100	1″ x 8	223 (101.2)