Drop-In Anchor - Ultimate Holding Values - Concrete
ULTIMATE HOLDING VALUES - CONCRETE*
| Anchor Diameter Inches | Anchor Length Inches | Internal Thread Length | Hole Size | Minimum Embedment | Torque Lbs | Spacing Between Anchor | Minimum Edge Distance | 2000 Tension Lbs. | PSI Shear Lbs. | 4000 Tension Lbs. | PSI Shear Lbs. |
| 1/4 | 1 | 1/2 | 3/8 | 1 | 5 | 3-1/2 | 1-3/4 | 939 | 1622 | 2067 | 2750 |
| 3/8 | 1-9/16 | 5/8 | 1/2 | 1-9/16 | 10 | 5-11/16 | 2-13/16 | 1560 | 2911 | 3995 | 5169 |
| 1/2 | 2 | 3/4 | 5/8 | 2 | 20 | 7 | 3-1/2 | 3105 | 4605 | 4110 | 7444 |
| 5/8 | 2-1/2 | 1 | 7/8 | 2-1/2 | 40 | 8-5/16 | 4-1/8 | 3323 | 7547 | 5750 | 12212 |
| 3/4 | 3-1/8 | 1-1/4 | 1 | 3-1/8 | 80 | 10-1/2 | 5-1/4 | 6678 | 12214 | 10807 | 14223 |
*Values shown are average ultimate values and are offered only as a guide and are not guaranteed. A safety factor of 4:1 or 25% is generally accepted as a safe working load. Reference should be made to applicable codes for the specific working ratio. *Tested by ATEC in accordance with ASTM E488-90 and ICBO Minimum embedment for satisfactory anchor performance is 4-1/2 bolt diameters. Deeper embedment will yield higher tension and shear capacity.