Selling Out Bulk 5/16″-18 Slotted Hex-washer Thread-cutting Screws — Type F, Bright-zinc Steel Economy Pack [cIHrb4nV]

Bulk 5/16″-18 Slotted Hex-Washer Thread-Cutting Screws

These 5/16″-18 Slotted Hex-Washer Thread-Cutting Screws are a versatile and efficient solution for a wide range of applications. Designed with a Type F cutting point, they offer bolt-level clamp force in a single self-tapping part, making them ideal for trailer frames, dock decks, heavy-gauge sheet-metal, and hardwood-to-steel assemblies. The integrated washer and indented hex head with integral washer spread the load and seal oversize holes, ensuring a secure fit. With a deep flat-blade slot, they provide a back-up drive in tight quarters, making them a convenient choice for various assembly needs.

Product Specifications and Features

Crafted from heat-treated carbon steel, these screws are durable and reliable. They feature a bright-zinc electro-plate finish, which is hydrogen-relief baked to IFI spec and factory dry-waxed for smooth, repeatable seating torque. The Type F fluted point taps clean female threads in pre-drilled or punched holes, allowing for easy installation. Key features include dual-drive convenience with an indented 5/16″ hex head and a broad slot, an integrated washer for enhanced bearing surface, and a Type F cutting point that forms threads in 0.060–0.200″ steel plate or dense hardwood. The bright-zinc finish is RoHS-compliant, ensuring environmental safety.

Practical Applications and Benefits

These screws are perfect for trailer shops, dock builders, and structural-steel fabricators. Their bulk packaging in factory-sealed cartons makes them ideal for large-scale projects. The combination of dual-drive convenience, integrated washer, and Type F cutting point provides numerous benefits, including efficient installation, enhanced joint sealing, and the ability to form threads in various materials. With their exceptional strength and reliability, these screws are a must-have for any professional looking to improve their assembly process.