3/8 in x 4 in SCREW-BOLT+™ High Performance Wedge Bolt Screw Anchor

• Designed for standard ANSI tolerance drill bits
• Patented thread design offers toughened threads for tapping high strength concrete
• Low installation torque in concrete and masonry
• Universal product for concrete and grouted/solid masonry
• Ratchet teeth on underside of hex washer head lock against the fixture
• Can be installed closer to a free edge than traditional expansion anchors
• Fully removable and re-installable in same hole
• Fast installation with powered impact wrench, but can also be installed manually
• Diameter, length and identifying marking stamped on head of each anchor
• One-piece, finished head design