Engineered for demanding structural and construction applications, the Midwest Fastener SaberDrive™ 52534 lag screw delivers exceptional strength, consistent performance, and long‑term outdoor durability. Designed with a professional‑grade XL1500 Tan coating and precision‑machined drive geometry, this 5/16" x 3‑1/2" screw provides reliable fastening for both contractors and serious DIY builders.

Its large washer head delivers superior load distribution, while the T‑30 Star Drive enhances torque and prevents cam‑out. The Type‑17 cutting point allows faster starts and cleaner entry into wood, often without the need for pre‑drilling. Ideal for framing, structural connections, deck building, and heavy-duty exterior construction, this lag screw offers the power and reliability expected from SaberDrive’s advanced fastening technology.

Key Features

• 5/16" diameter x 3‑1/2" length, suited for medium‑to‑heavy structural fastening tasks.
• Large round washer head delivers increased bearing surface for enhanced pull‑through resistance.
• T‑30 Star Drive for smooth torque transfer, reduced cam‑out, and improved bit engagement.
• Type‑17 self‑drilling point eliminates the need for pre‑drilling in most applications while reducing wood splitting.
• Steel construction for high‑strength structural fastening performance.
• Tan XL1500 exterior‑grade coating engineered for corrosion resistance in outdoor and treated lumber installations.
• Partial thread design improves clamp force and helps pull materials together tightly.
• Available in 35‑count and similar count configurations, depending on retailer packaging.

Specifications

• Model: 52534
• Brand: Midwest Fastener / SaberDrive
• Diameter: 5/16"
• Length: 3‑1/2"
• Material: Steel
• Finish / Coating: Tan XL1500 corrosion‑resistant coating
• Head Style: Round washer head, T‑30 Star Drive
• Thread Type: Partial thread
• Point Type: Type‑17 cutting point
• Application Type: Construction / structural lag screw

Applications

This high‑performance lag screw is optimized for:

• Structural framing, beams, and heavy wood‑to‑wood assemblies, where maximum hold strength is required.
• Deck construction, including joists, posts, and ledger board fastening, thanks to the corrosion‑resistant XL1500 coating.
• Exterior and treated lumber installations, where long‑term weather and moisture resistance is critical.
• General construction, carpentry, remodeling, and heavy-duty fastening, offering improved installation speed with its Star Drive system.
• DIY projects requiring high structural stability, such as pergolas, fences, and load-supporting outdoor builds.