5/16x4" Structural Screws 50pc

Grip-Rite PrimeGuard Plus structural screws are heavy-duty fasteners engineered for load-bearing exterior wood applications. These hex washer head screws deliver the strength and corrosion resistance needed for decks, fences, and other outdoor wood structures that demand long-lasting performance. The PrimeGuard Plus weather-proof coating protects against rust and degradation in treated lumber and harsh outdoor environments, ensuring your projects remain secure for years to come.

The innovative dual-drive head eliminates the need to choose between tools—you can drive with either a hex bit or a star drive bit, giving you flexibility on the job site. The Type 17 point design cuts quickly into wood without requiring pre-drilling, saving time on every fastening task. These structural screws work faster than traditional lag screws in exterior wood applications, making them a practical choice for both professionals and DIY builders tackling outdoor projects.

Features and Benefits

• Dual Drive Head: Choose between hex or star drive bits for maximum versatility and convenience during installation.
• Type 17 Point: Penetrates wood quickly and efficiently without pre-drilling, reducing installation time on large projects.
• PrimeGuard Plus Coating: Delivers corrosion resistance and durability in outdoor and treated lumber applications.
• Hex Washer Head: Designed for structural connections in load-bearing applications.
• Included Driver Bit: Each package includes a free bit so you have everything needed to start your project immediately.
• Specification Reference: A 3-digit code stamped into the head allows for easy specification identification and verification.

Specifications

• Brand: Grip-Rite
• Model: GRSSHW516450
• Size: 5/16 In. x 4 In.
• Head Type: Hex Washer Head
• Drive Type: Dual Drive (Hex and Star)
• Point Type: Type 17
• Pack Quantity: 50 Screws
• Coating: PrimeGuard Plus Weather-Proof
• Applications: Exterior wood, load-bearing structures, treated lumber

Descriptions are AI-generated. For accurate measurements, please call the store to confirm.