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Get it between 2025-06-18 to 2025-06-25. Additional 3 business days for provincial shipping.
Thread Size: 0.21" (5.3mm), Flange Diameter: 0.36" (9.2mm), Head Height: 0.15" (3.9mm), Length: 3.22" (82mm), Thread Length: 1.78" (45.2mm).
Specification: 50 PCS 3/16 x 3-1/4 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.
High Quality Material The Concrete Screws are made of high-quality Carbon Steel, and the surface of the screw is treated with Blue Ruspert, which has strong corrosion resistance; They are hardened to a high temperature for exceptional hardness, anti-rust property and corrosion resistance. Hex Head Design Our Hex Head Concrete Screws feature a slotted Hex head that can be driven with a slotted point screwdriver or a hex bit socket. High-Low Thread Self-Tapping Masonry Screws The high-low thread design provides strong fixing ability, and the sharp tail makes drilling faster. How to Use Concrete Screws Step 1: Pre-drill a suitable hole Begin by drilling a hole using the provided drill bit - concrete screws should be embedded in the base material to a depth of 1" to 1-3/4", and ensure the hole is 1/2" deeper than the screw embedment for a smooth installation. Step 2: Secure with Concrete Screws Drive the Concrete Screw into the hole perpendicularly. Note: Excessive torsion leads to screw head separation or thread stripping in the base material. Step 3: Installation Completed The installation process is simple and convenient, you can also easily remove it when needed.