12231 Structural Screws, 5/16 In X 5-1/8 In, Washer Head, 50 Pk

GRK Fasteners RSS structural screws are engineered from specially hardened steel to deliver high tensile, torque, and shear strength for demanding construction and structural applications. These screws are designed as an efficient alternative to traditional lag screws, offering superior performance in fastening critical components like carrying beams, ledger boards, stair rails, deck posts, and playground equipment. The sharp threads and points bite instantly into materials, including hardwood, while the smaller shank design significantly reduces the risk of splitting.

Whether you're a professional contractor or a DIY enthusiast, these structural screws provide the reliability and durability needed for projects that demand secure, long-lasting holds. The washer head design eliminates sharp edges found on conventional lag screws, making handling safer and easier while distributing load more effectively across fastened materials.

Features and Benefits

• CEE Thread Design: Screws 3-1/8 inches and longer feature CEE threads that enlarge the screw hole for the non-threaded portion, allowing wood to settle easily and increasing the screw's drawing strength.
• Reduced Friction: The unique thread design minimizes friction on the screw shank, lowering driving torque and decreasing the likelihood of wood splitting during installation.
• Hardened Steel Construction: Made from specially hardened steel, these screws offer superior strength and longevity even in harsh conditions, ensuring a long service life.
• Washer Head with Built-In Shield: The round head with built-in shoulder centers the screw in pre-drilled hardware like hinges and connector plates while providing no sharp edges for safer handling.
• Versatile Applications: Ideal for interior trim and exterior structural work, from deck construction to reinforcing existing structures.

Specifications

• Brand: GRK Fasteners
• Model: 12231
• Thread Size: 5/16 in
• Length: 5-1/8 in
• Head Type: Washer Head
• Drive Type: Star Drive
• Material: Steel
• Pack Size: 50 screws