www.roofingcontractor.com/articles/86087-screw-anchors
Screw Anchors
September 29, 2008
Product Focus: Focus on Fasteners

With a new thread design and lower installation torque, the new Tapper+ line of screw anchors from Powers Fasteners Inc. can handle virtually any light to medium duty fastening application in concrete, block and brick base material - and is tested to meet the 2006 International Building Code (IBC) for strength design of anchors in uncracked concrete. The screw anchors are removable, are available in Hex Head and Flat Head styles, and range in size from 3/16 to 1/4 inches and 11/4 to 6 inches in length. For more information, call 800-524-3244 visit www.powers.com.
Circle RS #18

With a new thread design and lower installation torque, the new Tapper+ line of screw anchors from Powers Fasteners Inc. can handle virtually any light to medium duty fastening application in concrete, block and brick base material - and is tested to meet the 2006 International Building Code (IBC) for strength design of anchors in uncracked concrete. The screw anchors are removable, are available in Hex Head and Flat Head styles, and range in size from 3/16 to 1/4 inches and 11/4 to 6 inches in length. For more information, call 800-524-3244 visit www.powers.com.
Circle RS #18