Size and Compatibility: 1/4" diameter x 1-1/4" overall length (embedment ~1"); drill hole size 1/4" (no pre-drilling often required); grip range ~1/2"–1" for thin-to-medium materials; compatible with hammer or power tools.
Expansion Mechanism: Slotted steel body expands via the hardened drive pin on impact, creating a friction lock; countersunk head seats flush without tools.
Material and Durability: Zinc-plated carbon steel (ASTM B633 compliant) for corrosion resistance in indoor/outdoor dry-to-moderate environments; hardened steel pin resists bending.
Load Capacity: Ultimate tensile strength ~1,000–1,500 lbs; shear ~1,500 lbs (in 3,000 PSI concrete; varies by embedment—test to 4x safe working load; suitable for light- to medium-duty).