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Technical Information:
Split Drive anchors are a one-piece, all steel concrete anchor. Split drive anchors are manufactured with through hardened, heat treated carbon steel. The anchor has two sheared, pre-expanded halves at the base. When driven into the concrete hole, these halves are compressed. Once an anchor is set, the two halves will continually try to regain their original shape. This exerts tremendous force upon the inside walls of the hole, resulting in low "slip" rates and increased vibration resistance. The positive
expansion compensates for poor grade
or old concrete.
Split Drive Anchor
can come with either a flat counter sunk head
or a round head.
Split Drive Anchor concrete anchor and fastener - Approvals:
Meets G.S.A. Specification FF-S-325, Group VI.
Split Drive Anchor concrete anchor and fastener - Applications:
light to medium duty in concrete.
Split Drive Anchor concrete anchor and fastener - Installation:
(1)
Drill hole in concrete with carbide
tipped bit meeting
ANSI standards. Hole should be
drilled minimum embedment or
deeper, plus 1/4" (2) Clean dust out
of hole. (3) Insert anchor through
fixture and into hole. (4) Hammer
anchor into
hole flush with the top of fixture.
Split Drive Anchor concrete anchor and fastener - Anchor Length:
Thickness
of material to be fastened plus minimum
embedment plus
1/4 " equals anchor length.
Split Drive Anchor concrete anchor and fastener - Anchor Spacing:
The forces on a Split Drive Anchor are transferred
to the material that it is installed in. 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 industry has established
a minimum standard of ten (10) anchor diameters for spacing
between anchors and five (5) anchor diameters from an unsupported
edge. Where vibration or sudden impact are part of the load
condition anchor spacing should be increased.
Split Drive Anchor concrete anchor and fastener - Technical Data
| Size |
Min. Emb. |
Drill Bit |
3000 psi Pull-Out |
3000 psi Shear |
| 1/4" x 1-1/2" |
1-1/8" |
1/4" |
1050 lb. |
5400 lb. |
| 1/4" x 2" |
1-1/8" |
1/4" |
1050 lb. |
5400 lb. |
| 1/4" x 2-1/2" |
1-1/8" |
1/4" |
1050 lb. |
5400 lb. |
| 1/4" x 3" |
1-1/8" |
1/4" |
1050 lb. |
5400 lb. |
| 1/4" x 3-1/2" |
1-1/8" |
1/4" |
1050 lb. |
5400 lb. |
| 1/4" x 4" |
1-1/8" |
1/4" |
1050 lb. |
5400 lb. |
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. Minimum embedment for satisfactory anchor performance
is 4-1/2 bolt diameters. Deeper embedments will yield higher
tension and shear capacity.
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