Standards Equivalency Guide
Common ASTM, AASHTO, ACI, ANSI, and ASME relationships used in construction, fastener, material, and engineered support specifications.
AASHTO to ASTM Equivalents
These are the closest direct equivalents commonly seen in highway and fastener specifications.
| AASHTO Grade | ASTM Equivalent | Description |
|---|---|---|
| M-111 | A123 | Hot-dip galvanizing of iron and steel products |
| M-164 | A325 | Structural bolts. Commonly referenced on older plans; now generally covered under ASTM F3125 assemblies. |
| M-183 | A36 | Low carbon structural steel material |
| M-222 | A588 | Weathering steel / atmospheric corrosion resistant structural steel |
| M-223 | A572 | High strength low alloy structural steel |
| M-232 | A153 | Hot-dip galvanizing of fasteners and steel hardware |
| M-253 | A490 | High strength structural bolts. Commonly referenced on older plans; now generally covered under ASTM F3125 assemblies. |
| M-291 | A563 | Carbon and alloy steel nuts |
| M-292 | A194 | High strength heavy hex nuts for high pressure or high temperature service |
| M-293 | F436 | Hardened steel washers |
| M-314 | F1554 | Anchor bolts / anchor rods in Grades 36, 55, and 105 |
Common ASTM Standards
Frequently referenced ASTM material, fastener, washer, nut, anchor, and coating standards.
| ASTM Standard | Category | Description |
|---|---|---|
| A36 | Material | Carbon structural steel |
| A123 | Finish | Hot-dip galvanized coatings on iron and steel products |
| A153 | Finish | Hot-dip zinc coating on steel hardware and fasteners |
| A193 | Fastener Material | Alloy and stainless steel bolting for high temperature or pressure service |
| A194 | Nuts | Carbon, alloy, and stainless steel nuts for pressure or high temperature service |
| A307 | Bolts / Rod | Carbon steel bolts, studs, and threaded rod |
| A325 | Structural Bolts | Older structural bolt designation; commonly replaced by F3125 Grade A325 |
| A354 | Bolts / Studs | Quenched and tempered alloy steel bolts, studs, and threaded fasteners |
| A449 | Bolts / Studs | Quenched and tempered steel bolts and studs |
| A490 | Structural Bolts | Older high strength structural bolt designation; commonly replaced by F3125 Grade A490 |
| A563 | Nuts | Carbon and alloy steel nuts |
| B633 | Finish | Electrodeposited zinc coatings on iron and steel |
| F436 | Washers | Hardened steel washers |
| F844 | Washers | General use steel washers |
| F1554 | Anchor Bolts | Steel anchor bolts / rods, Grades 36, 55, and 105 |
| F2329 | Finish | Hot-dip galvanizing of bolts, screws, washers, nuts, and threaded fasteners |
| F3125 | Structural Bolt Assemblies | High strength structural bolt assemblies, including Grades A325 and A490 |
| F593 | Stainless Fasteners | Stainless steel bolts, hex cap screws, and studs |
| F594 | Stainless Nuts | Stainless steel nuts |
ANSI / ASME Standards
ANSI often appears as an approval designation with ASME or another standards body.
| Standard | Area | Description |
|---|---|---|
| ANSI/ASME B1.1 | Threads | Unified inch screw threads |
| ASME B18.2.1 | Bolts / Screws | Square, hex, heavy hex, and askew head bolts and hex cap screws |
| ASME B18.2.2 | Nuts | Square and hex nuts |
| ASME B18.3 | Socket Products | Socket cap screws, shoulder screws, and set screws |
| ASME B18.6.3 | Machine Screws | Machine screws, tapping screws, and metallic drive screws |
| ASME B18.21.1 | Washers | Lock washers and plain washers |
| ASME B31.1 | Piping | Power piping |
| ASME B31.3 | Piping | Process piping |
| ASME Y14.5 | Drawings | Geometric dimensioning and tolerancing |
ACI Related Standards
ACI standards are usually related requirements, not one-to-one equivalents.
| ACI Standard | Commonly Related To | Description |
|---|---|---|
| ACI 318 | ASTM F1554, A615, A706, C150, C33, C39, C94 | Concrete building code requirements; references related material and testing standards |
| ACI 301 | ASTM concrete and reinforcement standards | Specifications for structural concrete construction |
| ACI 355.2 | Anchors in concrete | Qualification of post-installed mechanical anchors in concrete |
| ACI 355.4 | Adhesive anchors in concrete | Qualification of post-installed adhesive anchors in concrete |
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