Traditional or standard smooth square head lags, rustic hammered square head lags, and old world pyramid square head lags for decorative and structural projects. These square head lags are available in 1/4" diameter, 5/16" diameter, 3/8" diameter, 1/2" diameter, 5/8" diameter and 3/4" diameter. All of our square head lag screws are offered in all our hand patinaed finishes such as black, gun metal, oil rubbed bronze, pewter, wrought iron, aged bronze and rusty metal patina. Depending on the lag screw diameter the lengths available will range from 3/4" long up to 24" long. All lag screws are measured from the underside of the head to the tip of the screw. The head size of the hammered and pyramid hammered lag screws will slightly vary due to their hand hammered texture. Do not install with pneumatic impact wrench or high torque impact guns, improper use of these tools can destroy our products and the materials the are being installed into, please use standard low torque drills/screw guns or hand wrench into place only.