Powers Fastening Innovations 06307 Drop In Setting Tool For All 3/8-Inch Internal Thread Powers Only Drop In Anchors, 1 Per Box Powers Fasteners is the leading supplier of concrete and masonry anchors in North America and has been a leader in the fastening industry since 1921. Powers is an ISO 9001 international anchoring products company with extensive expertise in the following groups: Mechanical Anchors, Adhesive, Light Duty, Roofing and Carbide Drill Bits.