1/4" x 1-3/4" Blue Hex Washer Head Concrete Masonry Screws (50 PCS)

Robust Anchoring for Structural and Decorative Fixtures
The 1/4" x 1-3/4" blue masonry screws are a professional fastening solution for projects demanding high holding power in masonry substrates. With a heavy-duty 1/4-inch diameter, these anchors are designed to secure fixtures up to 3/4" thick into poured concrete, solid brick, and hollow block. They eliminate the need for separate plastic anchors by tapping their own threads directly into pre-drilled holes, creating a tight mechanical interlock that remains stable under load.

Precision Engineering for Seamless Installation
Each screw features High-Low Thread technology, which optimizes dust removal and lowers the torque required for a smooth drive. The Blue coating provides a functional barrier against moisture, making these fasteners suitable for basement renovations, exterior stucco applications, and garage shelving. The Hex Washer Head design allows for high-torque driving with a standard 5/16" nut driver, while the slotted recess offers versatility for minor manual adjustments with a flat-head screwdriver.

Quick Installation Guide:
• Pre-Drilling: Requires a 3/16" carbide-tipped masonry drill bit.
• Hole Depth: Drill the pilot hole 1/4" to 1/2" deeper than the screw's intended penetration (min. 1" embedment).
• Driver Tool: Use a 5/16" hex nut driver for the most secure installation.
• Common Uses: Mounting electrical boxes, HVAC strapping, window headers, door frames, and furring strips.

Specs: Size: 1/4" x 1-3/4"; Drive: 5/16" Hex / Slotted; Material: Carbon Steel; Finish: Blue Rust-Resistant; Pack: 50 PCS

Key Features

• Enhanced 1/4" Structural Strength: The robust 1/4-inch diameter provides superior shear resistance and higher load-bearing capacity compared to standard 3/16" screws, ensuring maximum stability in heavy masonry.
• High-Torque Slotted Hex Head: Features a 5/16" Hex Washer Head with an integrated slot, allowing for professional high-torque installation with a nut driver or easy manual adjustments with a flat-head screwdriver.
• Premium Blue Rust-Resistant Coating: Treated with a specialized blue anti-corrosion finish, these screws offer exceptional weather defense for long-term outdoor and indoor masonry applications.
• Precision Self-Tapping Threads: Engineered with sharp, deep threads that cut their own path into concrete, brick, or block for a snug, vibration-resistant hold without the need for separate anchors.
• Bulk 50-Pack Project Value: The Ideal quantity for medium to large residential or commercial projects¡ªget professional-grade fasteners for your entire job without the need for frequent reordering.

Specifications

• ASIN: B0D5LQ31CD
• Internal SKU: IMS0489
• Size: 1/4 x 1-3/4"
• Material: Carbon Steel
• Finish: Epoxy
• Head Style: Hex
• Package Quantity: 50