Hillman 370189 Lag Shield Long, 5/16-Inch, 100-Pack

Product Description Provides secure anchorage of lag screws in concrete and the mortar joints of block and brick. Four way expansion insures a tight grip and prevents over expansion. No lubrication is required. From the Manufacturer Provides secure anchorage of lag screws in concrete and the mortar joints of block and brick. Four way expansion insures a tight grip and prevents over expansion. No lubrication is required.

• Use to anchor concrete, brick and block
• Common applications include medium-duty projects, shelves, window frames and plumbing systems
• Unique four-way expansion that assures a tight grip in the hole, yet prevents over-expanding
• Short lag shield anchors may be used in hard masonry to help reduce drilling time
• Pre-drilling required