Midwest Fasteners 12885 5/16" ...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$9.00

Midwest Fasteners 12885 5/16" x 3-3/4" Black Structural Lag Screw T-30 Star

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Model: 12885

In Stock (leaves warehouse same day if ordered before 3pm ET)

$9.00
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Midwest Fasteners 12885 5/16" x 3-3/4" Black Structural Lag Screw

Midwest Fasteners 12885 structural screws are 5/16" x 3-3/4" lag-style fasteners built for heavy wood-to-wood and structural connections. Made from steel and finished in Black XL1500 coating for corrosion resistance, each screw uses a T-30 Star drive connection for secure bit engagement and reduced cam-out during high-torque driving. These screws are flagged for structural applications and are packaged in a Box for jobsite or shop use.

Key Features

  • Size: 5/16" x 3-3/4" overall dimension for structural wood connections requiring a longer, heavier-duty fastener.
  • Material & Finish: Steel construction with Black XL1500 coating for enhanced corrosion resistance in exterior and structural applications.
  • Drive Type: T-30 Star connection delivers strong bit engagement and minimizes slipping or stripping under high driving torque.
  • Product Type: Lag-style structural screw, flagged for load-bearing wood and construction assemblies.
  • Color: Black finish for a clean, consistent appearance on exposed structural connections.
  • Package: Sold in a Box for shop, jobsite, or contractor use.

Technical Specifications

  • Product Type: Lag Screw
  • Product Finish: Black XL1500
  • Connection Type: T-30 Star
  • Country of Origin: China
  • Product Material: Steel
  • Product Color: Black
  • Product Size: 5/16"
  • Package: Box

Typical Applications

  • Structural wood-to-wood framing connections
  • Deck ledger board and beam attachment where a heavy-duty lag-style fastener is required
  • General construction assemblies needing a Star-drive structural screw
  • Exterior projects benefiting from the Black XL1500 corrosion-resistant coating
  • Shop and jobsite stock for structural and framing repairs

Why Midwest Fasteners?

Midwest Fasteners builds this structural screw from steel with a Black XL1500 coating and a T-30 Star drive for dependable torque transfer and corrosion resistance on structural connections. Consistent sizing and finish across every box make it easy for contractors and maintenance crews to specify the right fastener for structural wood assemblies.

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Manufacturer Resources

Product Specs

Product Type:
Lag Screw
Product Finish:
Black XL1500
Connection Type:
T-30 Star
Country of Origin:
China
Department:
Fasteners
Product Group:
Screws
Product Subgroup:
Wood and Construction Screws
Product Material:
Steel
Product Color:
Black
Product Size:
5/16"

Midwest Fasteners 12885 – Frequently Asked Questions

How fast can I get the Midwest Fasteners 12885 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Midwest Fasteners 12885 come with a warranty?
Absolutely. The Midwest Fasteners 12885 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Midwest Fasteners 12885?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the Midwest Fasteners 12885 from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support, and rewards on every order. Our team is always ready to help you choose the right product for your project.