Concrete Split Drive Anchors

Purchase Concrete Split Drive Anchors

Split Drive Anchor Installation Video

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 working end. When driven into the concrete hole, these halves are compressed. Once  inserted, 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 Anchors 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 IV.

Split Drive Anchor concrete anchor and fastener - Applications:

Light-duty in solid concrete.

Split Drive Anchor concrete anchor and fastener - Installation:

  1. Drill a hole in the concrete using a hammer drill and a carbide tipped masonry bit meeting ANSI standards. The hole depth should be at least ¼" deeper than minimum embedment.
  2. Clear the hole of all debris.
  3. Insert the split drive anchor through the hole in the fixture and into the hole.
  4. Hammer the anchor into the hole until it is flush with the top of the fixture.

Split Drive Anchor concrete anchor and fastener - Anchor Length:

Minimum anchor length is equal to the thickness of the material to be fastened, plus minimum embedment, plus 1/4 ".

Split Drive Anchor concrete anchor and fastener - Anchor Spacing:

The forces on a Split Drive Anchor are transferred to the 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 anchors. 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

  3000 psi
Size Min. Embed. Drill Bit Pull-Out Shear
1/4" x 1-1/2" 1-1/8" 1/4" 2200 lb. 5400 lb.
1/4" x 2" 1-1/8" 1/4" 2200 lb. 5400 lb.
1/4" x 2-1/2" 1-1/8" 1/4" 2200 lb. 5400 lb.
1/4" x 3" 1-1/8" 1/4" 2200 lb. 5400 lb.
1/4" x 3-1/2" 1-1/8" 1/4" 2200 lb. 5400 lb.
1/4" x 4" 1-1/8" 1/4" 2200 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.