1/4" x 2-1/4" Concrete Screws, 50 PCS Blue Hex Washer Head Concrete Screws Anchor Kit with Drill Bit and Hex Bit Socket, for Masonry, Cement, Block, Brick or Stucco

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.