Durable Masonry Screws

Confast 410 stainless steel Hex Washer Head Masonry Screws are available in ³⁄₁₆- and ¼-inch diameters with lengths ranging from 1¼ to 6 inches. The maker claims the “Hi-Lo” thread design reduces torque, making the screws faster and easier to drive. Holding values in 2,000-psi concrete for ³⁄₁₆-inch screws are 360 pounds for pull-out and 432 pounds for shear; for ¼-inch screws, values are 750 pounds for pull-out and 900 pounds for shear. Finished with a Silver Ruspert coating, the screws are recommended for moist environments. A box of 50 ³⁄₁₆-by-1¼-inch screws costs about $24. confast.com