5/16-9x2-1/2" Hex Lag Screws A307 Grade A Zinc
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| Diameter Pitch | 5/16-9 |
| Grade Material | Grade A |
| Partial Full Threads | Partial |
| Tensile Strength | 60,000 psi |
| Inch Metric | Inch |
| Length Under Head | 2-1/2" |
| Finish | Zinc Clear |
| Width Across Flats | 0.500" (1/2") |
| Point Type | Gimlet Point |
| Recommended Predrill Hole Size | Softwood ≈ 5/32" · Hardwood ≈ 15/64" (root dia 0.227") |
| Grade | A307 Grade A |
| Material | Low carbon steel (ASTM A307 Grade A) |
| Major Diameter | 0.312" |
| Thread Length | 1.62" approx (≈60–70% of length) |
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