The anchor-bolt standard for setting columns, equipment, and structures into concrete. Three strength grades, color-coded on the end.
ASTM F1554 is the modern standard for anchor rods — the bolts that tie a structure down to its concrete foundation. It comes in three strength grades by minimum yield (36, 55, and 105 ksi), each color-coded so you can tell them apart on site.
Anchor rods / foundation bolts
Color-coded end (blue / yellow / red)
Anchoring columns & equipment to concrete
| Grade | Yield (min) | Tensile | End color |
|---|---|---|---|
| 36 | 36 | 58–80 | Blue |
| 55 | 55 | 75–95 | Yellow |
| 105 | 105 | 125–150 | Red |
F1554 is construction and iron-work bread and butter: the anchor bolts cast into a foundation for column base plates, equipment pads, light poles, and structural hold-downs. The grade is set by the structural design — Grade 36 for ordinary anchorage, 55 and 105 where uplift or moment demand is higher. They’re commonly supplied bent (L or J) or straight with a plate and nuts.
Check the color on the end of the rod: blue = Grade 36, yellow = Grade 55, red = Grade 105. Beyond that, F1554 anchors are often bent to an L or J, or come with an anchor plate and nuts. Always match the grade the drawings call out — this is structural.
Straight or bent F1554 anchor rods in all three grades, with plates and nuts — built to your foundation drawings. Send us the detail.
