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Long Tangent U-Bolts & Fig 137 Fasteners


Custom & Standard Long Tangent U-Bolts (Fig 137) | U-Bolt-It

What is a Long Tangent U-Bolt?

A long tangent U-bolt is a specialized U-shaped fastener featuring a curved base and two threaded arms. While they share the same basic profile as standard round U-bolts, long tangent U-bolts feature significantly longer legs and an extended thread length. This extended design allows the bolts to be fastened at various sizes and makes them perfectly suited for mounting to thick structural materials or oversized flanges.

Common Applications and Industries

Because of their extended length and threading, long tangent U-bolts are highly recommended for supporting heavy-duty loads. Our corrosion-resistant fasteners are designed to hold pipes securely in place, even in harsh environments. Common applications include:

  • Suspension of heavy pipes, tubes, and conduits from ceilings, walls, or poles.
  • Power Generation Industry: Securing critical infrastructure and heavy piping.
  • Marine Industry: Anchoring components in highly corrosive, moisture-rich environments.

Available Materials and Finishes

To ensure long-lasting durability in demanding environments, our extensive inventory of long tangent U-bolts is available in a variety of industrial-grade materials and finishes, including:

  • 304 Stainless Steel
  • 316 Stainless Steel
  • Low Carbon Steel
  • Galvanized Steel
  • Zinc-Plated Steel

Custom Manufacturing by U-Bolt-It

U-Bolt-It is the premium manufacturer of standard and custom long tangent U-bolts, including specialized Fig 137 U-bolts. While we offer all standard sizes in our inventory, you can trust our manufacturing team to engineer and create the perfect custom fastener for your unique project applications.

We pride ourselves on offering custom sizes, world-class customer service, and rapid turnaround times to keep your project on schedule.

Request a Quote Today

Have a question about our manufactured long tangent U-bolts? Contact our team directly by phone or by using our secure online form. We look forward to speaking with you!

Types of Long Tangent U-Bolts


Filter By:
SKU NAME DIAMETER AND THREAD PITCH PIPE SIZE COATING/PLATING DETAILS
UBLTSS0500250 1/2-13 X 2 1/2 304 STAINLESS STEEL LONG TANGENT U-BOLT 2 1/2 PIPE 1/2 X132.5304 STAINLESS STEEL
UBLTSS0500300 1/2-13 X 3 304 STAINLESS STEEL LONG TANGENT U-BOLT 3 PIPE 1/2 X 133304 STAINLESS STEEL
UBLTSS0500350 1/2-13 X 3 1/2 304 STAINLESS STEEL LONG TANGENT U-BOLT 3 1/2 PIPE 1/2 X 133.5304 STAINLESS STEEL
UBLTSS0500400 1/2-13 X 4 304 STAINLESS STEEL LONG TANGENT U-BOLT 4 PIPE 1/2 X 134304 STAINLESS STEEL
UBLTSS0500500 1/2-13 X 5 304 STAINLESS STEEL LONG TANGENT U-BOLT 5 PIPE 1/2 X 135304 STAINLESS STEEL
UBLT3S0500200 1/2-13 X 2 316 STAINLESS STEEL LONG TANGENT U-BOLT 2 PIPE 1/2 X 132316 STAINLESS STEEL
UBLT3S0500250 1/2-13 X 2 1/2 316 STAINLESS STEEL LONG TANGENT U-BOLT 2 1/2 PIPE 1/2 X132.5316 STAINLESS STEEL
UBLT3S0500350 1/2-13 X 3 1/2 316 STAINLESS STEEL LONG TANGENT U-BOLT 3 1/2 PIPE 1/2 X 133.5316 STAINLESS STEEL
UBLT3S0500500 1/2-13 X 5 316 STAINLESS STEEL LONG TANGENT U-BOLT 5 PIPE 1/2 X 135316 STAINLESS STEEL
UBLTGA0500250 1/2-13 X 2 1/2 LONG TANGENT U-BOLT 2 1/2 PIPE GALVANIZED 1/2 X132.5GALVANIZED
UBLT3S0500300 1/2-13 X 3 316 STAINLESS STEEL LONG TANGENT U-BOLT 3 PIPE 1/2 X 133316 STAINLESS STEEL
UBLT3S0500400 1/2-13 X 4 316 STAINLESS STEEL LONG TANGENT U-BOLT 4 PIPE 1/2 X 134316 STAINLESS STEEL
UBLT0370075 3/8-16 X 3/4 LONG TANGENT U-BOLT 3/4 PIPE ZINC PLATED 3/8 X 160.75ZINC PLATED
UBLT0370100 3/8-16 X 1 LONG TANGENT U-BOLT 1 PIPE ZINC PLATED 3/8 X 161ZINC PLATED
UBLT0370125 3/8-16 X 1 1/4 LONG TANGENT U-BOLT 1 1/4 PIPE ZINC PLATED 3/8 X 161.25ZINC PLATED
UBLT0370150 3/8-16 X 1 1/2 LONG TANGENT U-BOLT 1 1/2 PIPE ZINC PLATED 3/8 X 161.5ZINC PLATED
UBLT0370200 3/8-16 X 2 LONG TANGENT U-BOLT 2 PIPE ZINC PLATED 3/8 X 162ZINC PLATED
UBLTGA0370100 3/8-16 X 1 LONG TANGENT U-BOLT 1 PIPE GALVANIZED 3/8 X 161GALVANIZED
UBLTGA0370125 3/8-16 X 1 1/4 LONG TANGENT U-BOLT 1 1/4 PIPE GALVANIZED 3/8 X 161.25GALVANIZED
UBLTGA0370150 3/8-16 X 1 1/2 LONG TANGENT U-BOLT 1 1/2 PIPE GALVANIZED 3/8 X 161.5GALVANIZED
UBLTGA0370200 3/8-16 X 2 LONG TANGENT U-BOLT 2 PIPE GALVANIZED 3/8 X 162GALVANIZED
UBLTSS0370075 3/8-16 X 3/4' 304 STAINLESS STEEL LONG TANGENT U-BOLT 3/4 PIPE 3/8 X 160.75304 STAINLESS STEEL
UBLTSS0370100 3/8-16 X 1 304 STAINLESS STEEL LONG TANGENT U-BOLT 1 PIPE 3/8 X 161304 STAINLESS STEEL
UBLTSS0370125 3/8-16 X 1 1/4 304 STAINLESS STEEL LONG TANGENT U-BOLT 1 1/4 PIPE 3/8 X 161.25304 STAINLESS STEEL
UBLTSS0370150 3/8-16 X 1 1/2 304 STAINLESS STEEL LONG TANGENT U-BOLT 1 1/2 PIPE 3/8 X 161.5304 STAINLESS STEEL
UBLTSS0370200 3/8-16 X 2 304 STAINLESS STEEL LONG TANGENT U-BOLT 2 PIPE 3/8 X 162304 STAINLESS STEEL
UBLT3S0370075 3/8-16 X 3/4 316 STAINLESS STEEL LONG TANGENT U-BOLT 3/4 PIPE 3/8 X 160.75316 STAINLESS STEEL
UBLT3S0370100 3/8-16 X 1 316 STAINLESS STEEL LONG TANGENT U-BOLT 1 PIPE 3/8 X 161316 STAINLESS STEEL
UBLT3S0370125 3/8-16 X 1 1/4 316 STAINLESS STEEL LONG TANGENT U-BOLT 1 1/4 PIPE 3/8 X 161.25316 STAINLESS STEEL
UBLT3S0370150 3/8-16 X 1 1/2 316 STAINLESS STEEL LONG TANGENT U-BOLT 1 1/2 PIPE 3/8 X 161.5316 STAINLESS STEEL
UBLT3S0370200 3/8-16 X 2 316 STAINLESS STEEL LONG TANGENT U-BOLT 2 PIPE 3/8 X 162316 STAINLESS STEEL
UBLT0250025 1/4-20 X 1/4 LONG TANGENT U-BOLT 1/4 PIPE ZINC PLATED 1/4 X 200.25ZINC PLATED
UBLT0250037 1/4-20 X 3/8 LONG TANGENT U-BOLT 3/8 PIPE ZINC PLATED 1/4 X 200.375ZINC PLATED
UBLT0250050 1/4-20 X 1/2 LONG TANGENT U-BOLT 1/2 PIPE ZINC PLATED 1/4 X 200.5ZINC PLATED
UBLT0250075 1/4-20 X 3/4 LONG TANGENT U-BOLT 3/4 PIPE ZINC PLATED 1/4 X 200.75ZINC PLATED
UBLT0250100 1/4-20 X 1 LONG TANGENT U-BOLT 1 PIPE ZINC PLATED 1/4 X 201ZINC PLATED
UBLTGA0250075 1/4-20 X 3/4 LONG TANGENT U-BOLT 3/4 PIPE GALVANIZED 1/4 X 200.75GALVANIZED
UBLTGA0250100 1/4-20 X 1 LONG TANGENT U-BOLT 1 PIPE GALVANIZED 1/4 X 201GALVANIZED
UBLTSS0250050 1/4-20 X 1/2 304 STAINLESS STEEL LONG TANGENT U-BOLT 1/2 PIPE 1/4 X 200.5304 STAINLESS STEEL
UBLTSS0250075 1/4-20 X 3/4 304 STAINLESS STEEL LONG TANGENT U-BOLT 3/4 PIPE 1/4 X 200.75304 STAINLESS STEEL
UBLTSS0250100 1/4-20 X 1 304 STAINLESS STEEL LONG TANGENT U-BOLT 1'' PIPE 1/4 X 201304 STAINLESS STEEL
UBLT3S0250050 1/4-20 X 1/2 316 STAINLESS STEEL LONG TANGENT U-BOLT 1/2 PIPE 1/4 X 200.5316 STAINLESS STEEL
UBLT3S0250075 1/4-20 X 3/4 316 STAINLESS STEEL LONG TANGENT U-BOLT 3/4 PIPE 1/4 X 200.75316 STAINLESS STEEL
UBLT3S0250100 1/4-20 X 1 316 STAINLESS STEEL LONG TANGENT U-BOLT 1 PIPE 1/4 X 201316 STAINLESS STEEL
UBLTGA0250050 1/4-20 X 1/2 LONG TANGENT U-BOLT 1/2 PIPE GALVANIZED 1/4 X 200.5GALVANIZED
UBLT0250150 1/4-20 X 1 1/2 LONG TANGENT U-BOLT 1 1/2 PIPE ZINC PLATED ZINC PLATED
UBLT0250200 1/4-20 X 2 LONG TANGENT U-BOLT 2 PIPE ZINC PLATED ZINC PLATED
UBLT0370050 3/8-16 X 1/2 LONG TANGENT U-BOLT 1/2 PIPE ZINC PLATED ZINC PLATED
UBLT0370250 3/8-16 X 2 1/2 LONG TANGENT U-BOLT 2 1/2'' PIPE ZINC PLATED ZINC PLATED
UBLT0370300 3/8-16 X3 LONG TANGENT U-BOLT 3 PIPE ZINC PLATED ZINC PLATED
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