3/4"-10X6' ASTM F1554 55 S1 All Thread Rod w/ Plain Finish

ASTM F1554 Grade 55 All Thread Rods – Plain Finish

High-Strength Anchor Rods for Structural and Infrastructure Applications

ASTM F1554 Grade 55 all thread rods with a plain finish are engineered for medium to heavy-duty anchoring in concrete and structural foundation applications. With a higher yield strength than Grade 36, these rods are ideal for buildings, bridges, light poles, traffic structures, and other infrastructure requiring increased load capacity and reliability.

What Is ASTM F1554 Grade 55?

ASTM F1554 specifies threaded steel rods used as anchor bolts embedded in concrete. Grade 55 indicates a medium-strength, low-alloy steel with a minimum yield strength of 55,000 psi, making it suitable for more demanding structural applications than Grade 36.

Many Grade 55 rods are available with supplementary S1 weldability certification, ensuring they are safe for use in welded assemblies without risk of brittleness or failure.

Benefits of Plain Finish

The plain (uncoated) finish offers advantages for specific environments and fabrication needs:

• ✅ Ideal for indoor or dry, protected environments

• ✅ Allows for custom coatings such as galvanizing or epoxy after fabrication

• ✅ Better torque control where finish thickness can impact clamping force

• ✅ Cost-effective for large-scale projects without corrosion risk

Sizes and Common Applications

Grade 55 plain finish all thread rods are typically available in diameters from 1/2" to 2-1/2" and lengths up to 12 feet, with custom cuts and threading available. Common uses include:

• Foundation anchoring for buildings and bridges

• Light pole and sign structure supports

• Wind turbine and utility installations

Reliable Strength for Structural Anchoring

When projects demand a strong, weldable, and affordable anchor solution, ASTM F1554 Grade 55 all thread rods with plain finish deliver the performance and flexibility engineers and contractors trust.