Double Bolt Anchors

Double Bolt Anchors or Double Expansion Shields are a corrosion resistant anchor that is designed to be used with a machine bolt in concrete, brick, block, and stone. The anchor comes pre-assembled and consists of a zamac alloy anchor body, two expansion cones (one at each end of the anchor), and a wire expanding ring that holds the entire anchor together. The expansion cones are drawn in at each end of the anchor as the machine bolt is tightened into the anchor; ensuring consistent and even expansion along the entire anchor body.

STOCK #	Drill Bit Dia. (in.)	Thread Size (UNC)	Anchor Length (in.)
DBA14	1/2	1/4 - 20	1-3/8
DBA516	5/8	5/16 - 18	1-5/8
DBA38	3/4	3/8 - 16	2
DBA12	7/8	1/2 - 13	2-1/2
DBA58	1	5/8 - 11	2-3/4