Size and Compatibility: 1/4" diameter x 1" overall length (embedment ~3/4"); drill hole size 1/4" (often no pre-drill needed in softer masonry); grip range ~1/4"–3/4"; compatible with hammer or mallet for manual set.
Expansion Mechanism: Slotted zinc-plated steel body with hardened steel drive nail; nail expands the anchor on impact for friction grip; countersunk head seats flush without additional tools.
Material and Durability: Zinc-plated carbon steel body (ASTM B633 compliant) with hardened steel nail for corrosion resistance in indoor/dry-to-moderate environments; resists vibration and pull-out.
Load Capacity: Ultimate tensile strength ~800–1,200 lbs; shear ~1,200 lbs (in 3,000 PSI concrete; varies by embedment—test to 4x safe working load; suited for light loads like electrical boxes or trim).