Patriot Bolt machines ASTM F1554 anchor bolts in Grades 36, 55 and 105 for anchoring structural supports and equipment to concrete. The grade number is the minimum yield strength in ksi.
This page brings together the F1554 products we make, the property limits by grade, and how F1554 compares with other carbon and alloy steel grades.
F1554 Grade 36 / 55 / 105 at a Glance
- Specification
- ASTM F1554 Grade 36, 55 or 105
- Strength
- 36, 55 or 105 ksi min yield
- Size range
- 1/2–4 in (Grade 105 to 3 in)
- Color code
- 36 blue · 55 yellow · 105 red
- Matching nut
- A563 A (36, 55), A563 DH (105)
- Products
- Anchor bolts, threaded rod, nuts
F1554 Grade 36 / 55 / 105 Fasteners We Machine
Choose a product to see its standards and options. Every order ships with mill test reports traceable to the heat.
F1554 Anchor BoltsFull F1554 page
A563 Heavy Hex NutsMatching nutF1554 Grade 36 / 55 / 105 Mechanical Properties
| Grade | Tensile | Yield, min | Elongation, min |
|---|---|---|---|
| 36 | 58–80 ksi | 36 ksi | 23% |
| 55 | 75–95 ksi | 55 ksi | 21% |
| 105 | 125–150 ksi | 105 ksi | 15% |
Full chemistry is on the F1554 anchor bolts page.
F1554 vs. Other Carbon and Alloy Steel Grades
| Grade | Strength, min (tensile / yield) | Typical use |
|---|---|---|
| F1554 Gr 36 / 55 / 105 | 36, 55 or 105 ksi yield | Anchor rods cast into concrete |
| A307 Gr A / B | 60 ksi tensile | Low-strength general bolting; Grade B for cast-iron flanges |
| A449 | 120 / 92 ksi to 1 in | General engineering; Grade 5 strength to 3 in |
| A354 BC | 125 / 109 ksi to 2-1/2 in | Medium-high strength studs and rods to 4 in |
Compare all grades in the Fastener Materials Matrix.
F1554 Grade 36 / 55 / 105 Fastener FAQ
What do the F1554 grades mean?
Grade 36, 55 and 105 are the minimum yield strengths in ksi.
Which F1554 products does Patriot Bolt make?
We machine F1554 anchor rods threaded on one or both ends, with matching nuts. Send a drawing for bent or headed styles.
How are F1554 grades identified in the field?
The projecting end is color coded blue, yellow or red for Grades 36, 55 and 105, unless the grade is stamped.
Do F1554 fasteners come with certifications?
Yes. Patriot Bolt is ISO 9001:2015 certified, and every F1554 order includes mill test reports traceable to the heat and a certificate of conformance to your purchase order.
Request a Quote
Send us the product, size, specification and quantity, or upload your drawing. Call (281) 581-0176 or request a quote.