Technical Specifications - Split Drive Anchor
There are numerous technical specifications that must be considered when using Split Drive Anchors. Determinations on the overall length and head style of the Split Drive Anchor must be made. The Split Drive Anchor is only available in 1/4" diameter, and should only be used in solid concrete with dead loads only. Split Drive Anchors are made of high strength, heat-treated carbon steel which is zinc plated. Ideal for use in poor grade or old concrete, the Split Drive Anchor design offers low slip rates. The Split Drive Anchor is tamper resistant.
Split Drive Anchor Length:
To determine the length of split drive anchor required, add the thickness of the material to be fastened, plus minimum embedment, plus 1/4". The sum of these three items equals the minimum split drive anchor length.
Split Drive Anchor Spacing:
The forces on a Split 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.
Split Drive Anchor Ultimate Holding Values - CONCRETE**
| 1/4 |
1-1/2 |
Flat |
1-1/8 |
2200 |
5400 |
SDF14112 |
| 2 |
Flat |
1-1/8 |
2200 |
5400 |
SDF142 |
| 2-1/2 |
Flat |
1-1/8 |
2200 |
5400 |
SDF14212 |
| 3 |
Flat |
1-1/8 |
2200 |
5400 |
SDF143 |
| 3-1/2 |
Flat |
1-1/8 |
2200 |
5400 |
SDF14312 |
| 4 |
Flat |
1-1/8 |
2200 |
5400 |
SDF144 |
| 1/4 |
1-1/4 |
Round |
1-1/8 |
2200 |
5400 |
SDR14114 |
| 1-1/2 |
Round |
1-1/8 |
2200 |
5400 |
SDR14112 |
| 2 |
Round |
1-1/8 |
2200 |
5400 |
SDR142 |
| 2-1/2 |
Round |
1-1/8 |
2200 |
5400 |
SDR14212 |
All Split Drive Anchors are available in boxes of 100 pieces
** 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.