U-BOLTS & SQUARE U-BOLTS

Square or Round top zinc plated or Hot Dipped Galvanized steel u-bolts are designed for outdoor corrosion resistance. Use for mounting tubing & Square brackets, designed to support most WiFi , PCS, Cellular, and TV antennas. Allows you to vary the mounting pipe length and diameter
You can increase the amount of strength and holding power by utilizing multiple mounts space out over the length of the mounting pipe. There are many reasons you might need to use these mounts and they mostly involve the need to attach a pole to another pole to either extend the original or simply as an attachment point.

THREADED RODS

Get hard to find galvanized threaded rods with all the hardware included. Use to replace broken parts or make you own pipe to pipe mount
Hot Dipped Galvanized Treaded Rods are embedded in concrete to support Communication Tower Base anchoring and is also used with galvanized clamps. Treaded Rods are Hot Dipped Galvanizing , is a thick zinc coating offering more corrosion protection for application exposed to the elements.
Zinc Plated threaded rods are used for economical Brackets and Mounts

BOLT GRADES

GRADE 325

Is a structural bolt specification covering inch and metric bolt grades. This specification contains 4 inch series bolting grades: A325, F1852, A490, and F2280. These will be addressed in this article. When looking at the mechanical requirements of bolts it appears that a grade A325 and SAE J429 Grade 5 are identical as do the grade A490 and the SAE J429 Grade 8.
This begs the question, “Can an SAE J429 Grade 5 be used when an ASTM F3125 grade A325 is specified?” The answer is definitely no. This is also the case for substituting a Grade 8 when grade A490 is specified, and here are some reasons why:
First, grade A325 and A490 bolts are produced with a heavy hex head configuration which provides a wider bearing surface over which to distribute the load. Grade 5 and 8 bolts are produced to standard hex cap screw configuration and therefore cannot distribute the load as much as is needed for structural applications.
Second, the shank length (non-threaded portion of the body) on the grade A325 and A490 bolts is designed to be greater (shorter thread lengths) than your standard hex bolt or hex cap screw.

Remember, the weakest section of standard carbon steel fasteners is through the threaded region. Minute design changes such as this can create a stronger tensile connection. ASTM F3125/F3125M is a structural bolt specification covering inch and metric bolt grades. This specification contains 4 inch series bolting grades: A325, F1852, A490, and F2280. These will be addressed in this article. When looking at the mechanical requirements of bolts it appears that a grade A325 and SAE J429 Grade 5 are identical as do the grade A490 and the SAE J429 Grade 8.
This begs the question, “Can an SAE J429 Grade 5 be used when an ASTM F3125 grade A325 is specified?” The answer is definitely no. This is also the case for substituting a Grade 8 when grade A490 is specified, and the reason is because grade A325 and A490 bolts are produced with a heavy hex head configuration which provides a wider bearing surface to distribute the load over.

Replacement ROHN Hardware & ROHN OEM Bolt Kits

Though most Mounts come with the minimal amount of Requisite Hardware, it by no means accounts for all Mounting Options, Materials and Custom Installation Scenarios. Take a moment to Consider the Options and Materials in Use. Then Select the Appropriate Hardware to realize your Goal. The Flexibility and Longevity of any Mount to Match the Mounting Conditions may depend on it.

GRADE 5

Alloy steel is a medium carbon zinc plated alloy steel that is heat treated to increase hardness. Grade 5 bolts have three (3) evenly spaced hash marks on the head marking

What's the Difference in Bolt Grades?

ASTM F3125/F3125M is a structural bolt specification covering inch and metric bolt grades. This specification contains 4 inch series bolting grades: A325, F1852, A490, and F2280.
When looking at the mechanical requirements of bolts it appears that a grade A325 and SAE J429 Grade 5 are identical as do the grade A490 and the SAE J429 Grade 8.

Can I Use One Grade Over the Other?

So the question we hear most is "can an SAE J429 Grade 5 be used when an ASTM F3125 grade A325 is specified?"
The answer is NO. Why you ask? Because grade A325 and A490 bolts are produced with a heavy Hex Head configuration which provides a wider bearing surface that helps to distribute the load applied to it. Grade 5 and 8 bolts are produced to the standard Hex Cap screw configuration and therefore cannot distribute the load as much as is needed for structural applications, such as a tower structure. In addition to the enhanced bearing capabilities, the shank length (non-threaded portion of the body) on the grade A325 and A490 bolts is designed to be greater (shorter thread lengths) than your standard Hex Bolt or Hex Cap screw. Remember, the weakest section of standard carbon steel fasteners is through the threaded region. Minute design changes such as this can create a stronger tensile connection.