5/16 In. X 6 In. L Star Hex Head W-cut Structural Screws

GRK RSS 12235 structural screws are engineered from specially hardened steel to deliver high tensile, torque, and shear strength for demanding construction and fastening projects. The sharp threads and points bite instantly into materials, including hardwood, reducing the splitting effect that can occur with conventional fasteners. Whether you're securing ledger boards, assembling structural connections, or working with hardwood materials, these screws provide the reliability and performance that professional contractors and serious DIY enthusiasts demand.

At 6 inches long with a 5/16-inch thread diameter, these screws are sized for substantial structural applications. Available in a pack of 50, these fasteners deliver the combination of strength and durability required for both indoor and outdoor construction work.

Features and Benefits

• CEE Thread Design: For screws 3-1/8 inches and longer, CEE threads enlarge the screw hole for the non-threaded portion, allowing wood to settle easily and increasing drawing strength.
• Reduced Friction and Splitting: The CEE thread design lowers friction on the screw shank, reducing driving torque and the likelihood of wood splitting during installation.
• Washer Head with Shield: The round washer-type head eliminates sharp edges found on conventional lag screws, providing safer and more efficient fastening.
• Centered Installation: The added shoulder underneath the washer helps center the screw in pre-drilled hardware such as hinges and connector plates, ensuring precise and reliable positioning.
• Efficient Lag Screw Alternative: Combines the strength of traditional lag screws with improved design features that reduce splitting and installation difficulty.
• Interior and Exterior Use: Suitable for both indoor and outdoor applications where structural integrity is required.

Specifications

• Brand: GRK Fasteners
• Model: 12235
• Thread Diameter: 5/16 inch
• Length: 6 inches
• Head Type: Washer Head
• Drive Type: Star Drive
• Material: Steel (specially hardened)
• Pack Quantity: 50 screws