Technical Specifications — Hammer Drive Anchors
Before installing Hammer Drive Anchors, certain technical specifications must be considered to ensure that the correct size and length anchor are used. Here you will find anchor length, hole diameter, minimum embedment and tension and shear strengths to help you better determine the proper size Hammer Drive anchor required. The Hammer Drive Anchor is available in 3/16” and 1/4" diameters. The Hammer Drive Anchor can be used in concrete, brick and block base material, but should not be used in overhead applications.
Hammer Drive Anchor Length:
To determine the length of Hammer Drive Anchor required, add the thickness of the material to be fastened to the minimum embedment.
Hammer Drive Anchor Spacing:
The forces on a Hammer Drive Anchor are transferred to the base material in which it is installed. If the anchors are installed too close together, it can cause an interaction of the forces, thus reducing the holding power of the anchor. As a rule of thumb, the expansion anchor industry has established a minimum standard of ten (10) anchor diameters for spacing between anchors and five (5) anchor diameters from any unsupported edge. When vibration or sudden impact are part of the load conditions, spacing between anchors should be increased.
HAMMER DRIVE ANCHOR Ultimate Holding Values** - CONCRETE
| HD31678 |
3/16 |
7/8 |
3/16 |
5/8 |
283 |
793 |
| HD1434 |
1/4 |
3/4 |
1/4 |
1/2 |
261 |
884 |
| HD141 |
1/4 |
1 |
1/4 |
3/4 |
261 |
884 |
| HD14114 |
1/4 |
1-1/4 |
1/4 |
7/8 |
261 |
884 |
| HD14112 |
1/4 |
1-1/2 |
1/4 |
1 |
261 |
884 |
| HD142 |
1/4 |
2 |
1/4 |
1 |
261 |
884 |
| HD14212 |
1/4 |
2-1/2 |
1/4 |
1-1/4 |
261 |
884 |
| HD143 |
1/4 |
3 |
1/4 |
1-1/4 |
261 |
884 |
** 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. All values are based on close-tolerance holes drilled with carbide tipped drill bits. Designated holding power depends on the quality of the masonry material, depth of embedment, and proper hole size.