1/4 X 3/4" Hammer Drive Nail-In Anchors | Zinc Alloy | Bulk Box 3500 tap-in-lag-screw-short and rail steel

and rail steel

Drill bit seen better days

expansion anchors are rustproof

flush cutting is made easier by allowing more of the wheel to come closer to the work surface

The Hi-Lo thread design provides self-threading action and maximum holding power for fastening junction boxes

1/4 X 3/4" Hammer Drive Nail-In Anchors | Zinc Alloy | Bulk Box 3500 tap-in-lag-screw-short and rail steelEmbedment: 5 8 Tension (lb): 1095 Materials: Concrete, solid block, brick or masonry walls. Designed for attaching fixtures to solid materials, the body of the hammer drive anchor is made from rustproof, high grade zinc alloy. Hammer drives come pre assembled to offer quick and easy fastening in medium to light duty jobs. They feature a tamper proof mushroom head.