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FastenMaster FlatLok No. 14 X 5 in. L Torx Ttap Epoxy Coarse Wood Screws 250 pk
FastenMaster FlatLok No. 14 X 5 in. L Torx Ttap Epoxy Coarse Wood Screws 250 pk

FastenMaster FlatLok No. 14 X 5 in. L Torx Ttap Epoxy Coarse Wood Screws 250 pk

Made in America

Support American manufacturers + independent hardware retailers in one purchase.

A 250-count bucket of 5-inch structural wood screws built for decking, framing, and heavy timber connections.
Fastenmaster MPN FMFL005B-250 In Stock & Ready to Ship
$219.99
Free shipping on orders over $149
Ships within 24 hours · most orders arrive in about 2 business days
Ships free on orders over $149 $14.99 flat shipping until your order reaches $149.

About Product Overview

At 5 inches long, these FastenMaster FlatLok wood screws are built for heavy structural work, not trim or cabinetry. The No. 14 callout and coarse thread give them the holding power to bite into thick lumber, ledger boards, beams, and multi-ply built-up posts where a standard deck screw won't cut it. Self-drilling tips mean less pilot-hole prep, and the Torx TTap drive resists cam-out under the torque these longer screws demand.

The carbon steel body carries an epoxy finish rated for indoor and outdoor use, so these work as well on an exposed deck frame as they do inside a wall assembly. Sold in a 250-count bucket, this is a job-lot quantity for contractors and serious DIYers tackling framing, decking, or timber connections rather than a one-off repair.

  • Length: 5 inches
  • Callout size: No. 14
  • Head type: Flat
  • Drive style: Torx TTap
  • Thread: Coarse, self-drilling
  • 250 screws per bucket

The Details Specifications

Brand Fastenmaster
Model / MPN FMFL005B-250
UPC 608309429005
Weight 17 lbs
Country of Origin USA
Safety Data Sheet (SDS) Manufacturer documentation · opens in new tab
Price check

Go ahead. Check.

You're going to price-check us against Amazon, Home Depot, and Lowe's. Everybody does. Good — open all three tabs. We'll wait. Then look hard at what you're actually being handed over there.

On Amazon, start with these four questions 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 Fastenmaster. 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

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

Amazon, Home Depot, and Lowe's are built to pull every hardware dollar out of your town. When the local shop can't keep the lights on, the counter where somebody actually knew which part you needed goes with it. We're built the other way: real brands so you're never stuck on a marketplace, and a straight answer to buy it down the street when that's the better call. Support independent hardware — it doesn't restock itself.

Why we tell you to shop local
Authorized dealer · Fastenmaster

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Keep the neighborhood working. Every dollar spent at an independent retailer returns roughly 3x more to your local economy than at a national chain.

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