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SPAX PowerLags 1/4 in. in. X 4 in. L T-30 Washer Head Serrated Structural Screws
SPAX PowerLags 1/4 in. in. X 4 in. L T-30 Washer Head Serrated Structural Screws
SPAX PowerLags 1/4 in. in. X 4 in. L T-30 Washer Head Serrated Structural Screws
SPAX PowerLags 1/4 in. in. X 4 in. L T-30 Washer Head Serrated Structural Screws
SPAX PowerLags 1/4 in. in. X 4 in. L T-30 Washer Head Serrated Structural Screws
SPAX PowerLags 1/4 in. in. X 4 in. L T-30 Washer Head Serrated Structural Screws

SPAX PowerLags 1/4 in. in. X 4 in. L T-30 Washer Head Serrated Structural Screws

Made in America

Support American manufacturers + independent hardware retailers in one purchase.

Self-tapping serrated threads bite into wood-to-wood joints without pre-drilling, backed by a corrosion resistant finish for indoor or outdoor framing.
Spax MPN 4581820701005 In Stock & Ready to Ship
Local Price Check i Local stores may price this as low as $30.99. Our online price is $34.99.
$34.99
Free shipping on orders over $75
Ships within 24 hours · most orders arrive in about 2 business days

About Product Overview

SPAX PowerLags are built for wood-to-wood structural work, including framing, where you need a screw that bites hard and holds. The 1/4 in. diameter and 4 in. length give you plenty of grip for heavier connections, and the serrated thread cuts its own path so you skip pre-drilling on most jobs. A washer head spreads out clamping force, and the high corrosion resistant finish means these hold up whether the work is indoors or out.

  • Length: 4 in., Diameter: 1/4 in. (Callout 1/4 in.)
  • Grade 5 carbon steel, black finish, high corrosion resistance
  • T-30 drive with driver bit included
  • Self-tapping serrated thread, washer head
  • Box of 50, indoor/outdoor use

The Details Specifications

Brand Spax
UPC 712216019218
Case Pack Quantity 4 per case
Retail Unit Quantity 1
Dimensions (L × W × H) 3 × 8 × 3
Weight 2 lbs
Country of Origin USA
Safety Data Sheet (SDS) Manufacturer documentation · opens in new tab
Price check

Go ahead. Check.

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When you're over there, check four things before you click buy.

01

Who's actually selling it

The brand name is on the listing. A different company is in the seller field. Those aren't the same thing, and the second one is who you're buying from.

02

Whether the warranty survives

Most manufacturers only honor a warranty when the unit came through an authorized dealer. We're authorized for Spax. A third-party marketplace seller usually isn't.

03

Where the box came from

Gray-market stock, returns repackaged as new, and outright fakes move through marketplaces constantly. It all looks identical in the photo. It stops looking identical when it fails.

04

Who you call when it breaks

Ours is a phone number with a person behind it who has held this product. M–F, 6 AM – 5 PM Pacific. (866) 469-8556

We're not always the cheapest.

Sometimes you'll find it for less. Sometimes you'll find it for more. On a lot of brands the number is identical everywhere it's sold legitimately — the manufacturer sets a minimum advertised price and every authorized dealer holds it. When a price sits well under that, it's worth asking why before it's worth celebrating.

How pricing actually works
Authorized dealer · Spax

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