About this item Thread Size: 0.21" (5.3mm), Flange Diameter: 0.36" (9.2mm), Head Height: 0.15" (3.9mm), Length: 1.25" (31.8mm). Specification: 100 PCS 3/16 x 1-1/4 Inch Hex Washer Head Concrete Screws, with a Drill Bit and a Hex Bit Socket. Material: Made of high-quality carbon steel, and the surface of the screw is treated with Blue Ruspert, which has strong corrosion resistance. Performance: The Concrete Screws are hardened to a high temperature for exceptional hardness, anti-rust property and corrosion resistance; The high-low thread design provides strong fixing ability, and the sharp tail makes drilling faster. Application: Suitable for a various of masonry materials such as concrete, masonry, brick, block, stucco in your home and workplace yard for quick installation.
Material: Carbon Steel Head Style: Hex Exterior Finish: Alloy Steel Thread Size: 3/16" Point Style: Self-Tapping