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Internet #202041031

Model #4571010700507

Store SKU #366359

1/4 in. x 2 in. Powerlag Hex Drive Washer Head Zinc Coated Lag Screw

  • No Pre-Drilling in Wood
  • Heat-treated (Grade-5) for high strength and durability
  • Low profile built-on washer head provids great clamping ability
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Product Overview

The SPAX Factor- For the craftsman that concentrates on the details, We Work for You. For the Pro that puts qualify first, we help you create stronger connections, enhance performance and improve results when your reputation is on the line. Say Good Bye to your fathers traditional lag. SPAX PowerLags offer superior installation performance and durability over traditional lag screws and carriage bolts for structural wood construction. Made of carbon steel and coated for long term durability to ensure your project endures. Made SPAX is your trusted partner for your fastening needs. Do it Once, Do it Right with SPAX.
  • Stay stronger for longer heat treated grade 5 durability subjecting the screw to heat treating gives greater strength and reduces breakage, tested under the tougest scenerios to give you confidence in every connection
  • Check out our threads our patented thread serration technology allows the screw to be driven faster, easier to install, and reduces splitting in wood, let the SPAX factor take some of the hassle out of your next project
  • Ideal replacement for the conventional lag ICC-ES building code recognized for use in structural wood to wood applications check out our ICC-ES report ESR-1843
  • Options and more options, offers the largest selection of code recognized structural wood to wood engineered fasteners in the industry
  • Manufactured to imperial size standards with industry leading pull-through and withdrawl values
  • Carbon steel screw coated in zinc is your ideal fastener for your interior structural needs
  • Trend setting low profile built-on washer head design offers a contemporary and sleek finished installation, excellent draw down strength without the need for a separate washer delivers superior clamping ability and 40% less driving torque
  • Hex size: 3/8 in.

Info & Guides

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Fastener Length (in.)
Screw Length
2 in
Thread Pitch


Color Family
Drive Style
Fastener Length
2 in
Fastener Plating
Fastener Thread Type
Fastener Type
Lag Screw
Fastener/Connector Material
Coated,Self Drilling,Self Tapping
Bright Zinc
Finish Family
Grade 5
Head Style
Flange Hex
Measurement Standard
Package Quantity
Product Weight (lb.)
1/4 in

Warranty / Certifications

Manufacturer Warranty
For warranty information on this product, please call the Customer Service Center at 1-800-435-4654.

Questions & Answers

Typical questions asked about products:

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Customer Reviews

  • 4.7
    out of 28 reviews
  • 100% recommend this product
Filter by:
Showing 1-10 of 28 reviews
They worked but the store shorted me one bolt from...
They worked but the store shorted me one bolt from my order.
  • Verified Purchase
Spax screws and grk are the best screws money can...
Spax screws and grk are the best screws money can buy
  • Verified Purchase
  • Verified Purchase
Very good power lags. Pre drill smaller hole if within 4 inches of end of wood.
Very good power lags. Pre drill smaller hole if within 4 inches of end of wood.
by Nyjett32
    • Recommended Product
    These lag screws were perfect for the job.
    These lag screws were perfect for the job.
    by RT
    • Verified Purchase
    • Recommended Product
    Had to hang up things on our garage...
    Had to hang up things on our garage
    by HomeDepotCustomer
    • Verified Purchase
    Rating provided by a verified purchaser...
    Rating provided by a verified purchaser
    by HomeDepotCustomer
    • Verified Purchase
    Performed as expected...
    Performed as expected
    by ADAM
    • Verified Purchase
    I prefer to use these everyday for TV wall mount...
    I prefer to use these everyday for TV wall mount installations instead of the bolts that come with the TV mounts. I usually buy about 200 of Spax bolts a month. They have a better coarse thread on the bolts.
    by HomeDepotCustomer
    • Verified Purchase
    3 people found this helpful
    Holds like they should....
    Holds like they should.
    by BigEarl
    • Verified Purchase
    Showing 1-10 of 28 reviews