The 5/16" Hole, 1-1/2" Length 14-16 Screw Expanding Plastic Blue Screw Anchors are designed for fastening applications in various building materials. These anchors are suitable for the installation of shower door hinges, clamps, and extrusions. Constructed from plastic, these anchors are unaffected by moisture, which helps maintain a firm grip over time. The anchors feature a 1-1/2" length and are designed for use with 14-16 screw sizes. They require a 5/16" drill hole for installation. These anchors provide a pull-out capacity of 500 PSI when used in 4000-PSI concrete. The blue color coding assists in identifying the anchor size, simplifying the selection process for various projects. These plastic anchors are intended for use in concrete, tile, or marble surfaces. They are part of a system that includes nine different size options for fastening versatility, accommodating screw applications from No.4 to No.16. The design allows for a straightforward installation process when mounting hardware components to walls or other surfaces. These anchors are intended for use in residential and commercial building projects where a firm, reliable connection is required for hardware mounting.