Description of Wej Concrete Screws 100 Pack
DURABLE CONSTRUCTION. This Wej-It Wej-Con Concrete Screw is crafted using 1022 carbon steel with a corrosion-resistant, blue R-Blocker finish to supply long-term strength and use. Conforming to American Society for Testing and Materials (ASTM) B117 specifications, this coating will resist 1,000 hours of salt spray. APPLICATIONS. To furnish a secure hold without requiring threaded inserts, this high-strength, case hardened screw is outfitted with twin-lead, v-notched threads for anchoring into concrete, hollow block, brick, mortar and concrete masonry units. DIFFERENT HEAD STYLES. The hex washer head has a flange that provides additional bearing surface to distribute the clamping force over a larger area, reducing damage to the fixture being fastened, while the flat head is cone shaped for use in countersunk holes and has a flat top that fits flush with the mated surface when installed, giving your work a neat finish. EASY INSTALLATION. Create the correct size hole with the included drill bit, then easily install the screw into the pre-drilled hole. The hex washer has a linear slot for use with a flat-blade driver, as well as six flat sides that a wrench can grip. Meanwhile, the Phillips drive has an x-shaped slot which accepts a Phillips driver and is designed to allow the driver to slip out of the head to help prevent over-tightening and damage. CHOICE OF SIZE. To accommodate your needs, the Hew Washer Head and the Phillips Flat Head Concrete Screws come in a variety of different sizes. It is recommended that a minimum of 1-inch and a maximum of 13⁄4-inch embedment be used in determining fastener length.
