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GRK Fasteners 3/8 in. in. X 12 in. L Star Washer Head Self Tapping Structural Screws

Steel structural screws built for heavy wood-to-wood joints, with a self-tapping thread and weather-ready Climacoat finish.
Grk Fasteners MPN 96030 In Stock & Ready to Ship
$111.80
$5.59 each · sold by the case of 20 Free shipping on orders over $75
Ships within 24 hours · most orders arrive in about 2 business days
Cases of 20 · Order in multiples of 20

Sold by the Case

$111.80 per case of 20

Save $16.80 on orders $75+. Spend $75 or more to unlock 15% off every case — applied automatically at checkout. Free shipping at $75.

Ships as a complete case of 20. Free shipping on orders $75 and up.

About Product Overview

GRK's structural screw handles the heavy lifting on wood-to-wood connections that call for serious length and holding power - think beams, posts, and ledger work. The 3/8 in. diameter and 12 in. length give you a strong steel fastener that self-taps into place, and the W-Cut thread pulls itself down without the need for pre-drilling in most applications. Climacoat finish stands up to moisture, so these work indoors or out. Star drive and hex head keep the bit seated and torque consistent even on long structural runs.

  • Size: 3/8 in. dia. x 12 in. length
  • Material: Steel with Climacoat finish
  • Drive: Star, Hex head
  • Thread: W-Cut, self-tapping (not self-drilling)
  • 20 screws per clamshell package
  • Rated for indoor and outdoor use

The Details Specifications

Brand Grk Fasteners
Model / MPN 96030
UPC 092097960305
Weight 3 lbs
Safety Data Sheet (SDS) Manufacturer documentation · opens in new tab
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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 Grk Fasteners. 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

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The big boxes don't care if your hardware store survives.

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Authorized dealer · Grk Fasteners

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