Engineered for strength, reliability, and superior driving performance, the Midwest Fastener SaberDrive™ 52533 lag screw is built to exceed the demands of modern construction and structural fastening. This 5/16" x 3" screw is part of SaberDrive’s professional‑grade lineup, featuring a rugged steel core, advanced exterior‑grade coating, and a Star Drive head that ensures smooth driving with reduced wear on tools.

Whether you’re securing deck framing, fastening ledger boards, or performing structural wood‑to‑wood connections, the 52533 model is designed to deliver exceptional holding power and long‑term corrosion resistance. The screw’s Type‑17 cutting tip allows clean, controlled penetration with minimized splitting—eliminating the need for pre‑drilling in most lumber. For contractors and DIY builders alike, this fastener offers a perfect balance of strength, durability, and installation speed.

Key Features

• 5/16" diameter x 3" length ideal for medium‑to‑heavy structural fastening applications.
• Star Drive (T‑30) for maximum torque transfer, reduced cam‑out, and consistent bit engagement.
• Large round washer head provides increased bearing surface and superior pull‑through resistance.
• Type‑17 self‑cutting point minimizes wood splitting and often eliminates the need for pre‑drilling.
• High‑strength steel construction for dependable structural performance.
• Platinum/Tan XL1500 weather‑resistant coating engineered to withstand demanding outdoor environments and treated lumber contact.
• Partial thread design enhances clamp force, allowing materials to draw tightly together during fastening.
• Sold in 40‑count packaging, ideal for mid‑sized projects.

Specifications

• Model: 52533
• Brand: Midwest Fastener / SaberDrive
• Diameter: 5/16"
• Length: 3"
• Material: Steel
• Finish / Coating: Tan XL1500 or Platinum coating 
• Head Style: Round washer head (T‑30 Star Drive)
• Thread Type: Partial thread
• Point Style: Type‑17
• Package Quantity: 40 screws per package (manufacturer‑supported variant)
• Application Rating: Structural / construction‑grade lag screw

Applications

The SaberDrive 52533 is built for high‑demand fastening tasks across residential, commercial, and outdoor construction environments, including:

• Deck framing, ledger attachments, and joist fastening, where corrosion resistance and torque stability are essential.
• Heavy‑duty wood‑to‑wood connections in structural builds, framing, and load‑bearing assemblies.
• Outdoor construction, such as fencing, pergolas, and exterior structural components, using its XL1500/Platinum coating for long‑term durability.
• General carpentry, remodeling, and contractor‑grade installations, providing a high‑strength alternative to traditional lag bolts with easier, tool‑friendly installation.
• DIY weekend projects, benefiting from the self‑drilling Type‑17 point and forgiving installation characteristics.