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3/8 in. x 4 in. Hex-Washer-Head Large Diameter Concrete Anchors (10-Pack)

  • Designed for fastening into solid concrete, brick or hollow block
  • Coated for corrosion protection
  • Cracked and Seismic Approved
  • See More Details

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Product Overview

Ideal for projects that require heavy-duty holding power, Tapcon plus screw anchors are the stronger, faster and easier masonry anchoring solution. They install in less than half the time of wedge anchors or sleeve anchors and have 20% more holding power. Tapcon plus anchors are suitable for use in concrete, both indoors and outdoors.
  • Works in all masonry-based material including concrete, block or brick
  • Use these screws for a variety of projects including attaching machinery/heavy equipment, industrial shelving, ledger board, pipes, cables and many other fixtures to masonry
  • Climaseal blue coating delivers long-lasting corrosion protection
  • Patented threadform doubles installation speed and delivers 20% more holding power than wedge or sleeve anchors
  • Heavy-duty anchor design instills confidence by allowing for closer anchor spacing and closer to edge installation
  • Reputation for quality, strength and ease of installation from industry professionals
  • Approved for use in ACQ treated lumber
  • Learn more about concrete anchors here.

Info & Guides

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3/8 in. x 4 in. Hex-Washer-Head Large Diameter Concrete Anchors (10-Pack)
1/2 in. x 4 in. Steel Hex Washer-Head Indoor/Outdoor Concrete Anchors (10-Pack)
BrandTapconTapconTapconTapcon
Name3/16 in. x 1-1/4 in. Hex-Washer-Head Concrete Anchors (75-Pack)1/4 in. x 2-3/4 in. Hex-Washer-Head Concrete Anchors (75-Pack)3/8 in. x 4 in. Hex-Washer-Head Large Diameter Concrete Anchors (10-Pack)1/2 in. x 4 in. Steel Hex Washer-Head Indoor/Outdoor Concrete Anchors (10-Pack)
Price
Ratings
(535)
(1117)
(190)
(108)
Fastener Length (in.)1.252.7544
Fastener Head StyleHexHexHexHex
Fastener/Connector MaterialSteelSteelSteelSteel
Package Quantity75751010
Maximum Weight Capacity (lb.)0000
Finish FamilyBlueBlueBlueBlue
Anchor Diameter (in.)3/16"1/4"3/8"1/2"
Fastener TypeConcrete ScrewsConcrete ScrewsConcrete ScrewsConcrete Screws
View ProductView ProductView ProductView Product

Specifications

Dimensions

Anchor Diameter (in.)
3/8"
Anchor Length (in.)
4
Fastener Length (in.)
4
Required Drill Hole Size (in.)
0.375

Details

Color Family
Blue
Fastener Head Style
Hex
Fastener Plating
Zinc
Fastener Type
Concrete Screws
Fastener/Connector Material
Steel
Fastening Base Material
Brick,Cinder Block,Concrete
Features
Coated
Finish
Climaseal blue
Finish Family
Blue
Included
No Additional Items Included
Interior/Exterior
Exterior,Interior
Maximum Weight Capacity (lb.)
0
Measurement Standard
SAE
Package Quantity
10
Product Weight (lb.)
0.173
Returnable
90-Day

Warranty / Certifications

Manufacturer Warranty
ITW Brands warrants that this product is free from defects in material and workmanship. ITW Brands' sole liability for any breach of this warranty shall be to replace this product or refund the purchase price.

Questions & Answers

29Questions19Answers

this ones are good to hold a 48"wood round light soffit about 60 pounds into the concrete ceiling...

Asked by Rafael May 27, 2021
2
Answers

Shed anchors

this are good to attache on concrete ceiling ?

Asked by Rafael May 27, 2021
1
Answer

These will work in concrete It will depend on how much weight you are trying to hang as to if the will be used safely. Make sure you use the proper size bit when drilling the holes.

For using these to anchor a polyethylene storage shed to a concrete pad, are fender washers neces...

Asked by JT November 3, 2020
2
Answers

they probably are a good Idea to better support the thin plastic walls . If nothing else fror the price they provide good insurance for a better fastening system .

Can these be used outdoors?

Asked by Bk September 26, 2020
2
Answers

Yes they can

What size socket for the hex head?

Asked by chief August 20, 2020
1
Answer

9/16" Nut driver '

Need recommendation for concrete screws to secure shade sail to brick home. Thanks.

Asked by Mike August 19, 2020
2
Answers

Tapcon are the best in my opinion ,follow the recomended drilling size ,note the screw sizes generally over size

Can I use a regular drill to pre-drill the pilot hole? or is a hammer drill required?

Asked by Joe July 8, 2020
3
Answers

NO, you have to use a concrete drill even for a pilot hole with a hammer drill.

Do I have to use a 3/8” Tapcon brand drill bit or will any brand masonry bit suffice?

Asked by Tom May 24, 2020
2
Answers

Drill with carbide 3/8 drill, note the tapcon screw is closer to 7/16 diameter

Is this anchor approved for use with cedar or will the cedar corrode the fastener over time?

Asked by CJ April 15, 2020
2
Answers

Yes, it has a special coating on it.

I am anchoring a 2 x 8 x 12 deck ledger board on a 6" thick concrete wall. How far apart should I...

Asked by Rob October 1, 2019
2
Answers

We usually put 2 on each end and alternate top to bottom every 16", but refer to the code in your area to be on the safe side.

3/8 in. x 4 in. Hex-Washer-Head Large Diameter Concrete Anchors (10-Pack) - page 2

Customer Reviews

  • 4.8
    out of 190 reviews
  • 95% recommend this product
Filter by:
Showing 1-10 of 190 reviews
These tapcons worked perfectly for my project! I used them...
These tapcons worked perfectly for my project! I used them to mount a baseboard for a 200lbs barn door.
by Me
Drilled 3/16 pilot hole in all locations then opened them to 3/8 with a Bosch masonry drill and m...
Drilled 3/16 pilot hole in all locations then opened them to 3/8 with a Bosch masonry drill and my 20 yr old DeWalt hammer drill. Drive the Tapcons in with a 1/2" Impact wrench. Went in smooth. Was carefull not to overdrive these screws. Couldn't be better.
by Doityourself
1 person found this helpful
I purchase the Tapcon 3/8 in. x. 4in. Hex-washer because...
I purchase the Tapcon 3/8 in. x. 4in. Hex-washer because I used there product before for tie down anchors in concrete block. So when I needed to anchor the 3 in x 8in. angle iron for my new outdoor kitchen I knew this product would be reliable to finish the job!
by Dejames
Works great, drilled a 3/8" hole in concrete with a hammer drill and screwed it in with a 18 volt...
Works great, drilled a 3/8" hole in concrete with a hammer drill and screwed it in with a 18 volt 1/4" impact. Done!!! I used them to secure my wooden steps mounted on a concrete retaining wall. Big time saver.
by Kewstow
it worked perfect where I used it
it worked perfect where I used it
by afr3967
Save time. A positive anchor to fasten our 4 x 4 posts to the cinder block wall, in order to hang...
Save time. A positive anchor to fasten our 4 x 4 posts to the cinder block wall, in order to hang our new gate.
by Ortegahandyman
Tapcon 3/8 in. x 4 in. Hex-Washer-Head Large Diameter Concrete Anchors (2-Pack) review: Tapcon c...
Tapcon 3/8 in. x 4 in. Hex-Washer-Head Large Diameter Concrete Anchors (2-Pack) review: Tapcon concrete screws are THE definitive screw to turn to when you are installing objects into concrete, brick or stone. You drill a hole a bit smaller than the width of the screw (be sure to drill at least one half inch more on your pilot hole for brick residue that will fall down when you screw) and then BE SURE to vacuum out the hole. Then, use an impact driver to drive the screw through your object and into the concrete. So easy if you follow those steps. There ya go!
by nj5j
Simple and well designed. These anchor bolts mean business. They are not just scaled up version ...
Simple and well designed. These anchor bolts mean business. They are not just scaled up version of smaller ones, but have been carefully designed to anchor themselves into concrete. First thing to notice is the tip is not designed to drill its way into concrete, you have to drill a hole first and the packet tells you exactly what size masonry bit to use. For these ⅜” bolts one needs to use a ⅜” drill bit. The packaging goes on to also tell you that one will need a 9/16” driver to screw the bolt into the hole you drilled and the maximum torque of 50 ft. lbs. The threads on the end are slightly tapered so that the bolt can be started in the correctly sized hole. The underside of the head has small ‘flutes’ to prevent it from unscrewing. The 4” length is from the tip to the underside of the head. They suggest drilling the hole ½” deeper than the end will end up, i.e. 4 ½” less the thickness of whatever you are bolting down.
by Dale
Great Product
Used these to fasten a 2x8 ledger for a deck to some hollow and some filled concrete block. I was a bit skeptical at first but they all gripped the block securely and the washer head countersunk nicely into the wood. Far better luck with these than i typically have with redhead sleeve anchors. Will be using these on my low level deck projects in the future.
by Zach
3 people found this helpful
Great solution for re-anchoring a misaligned mudsill
We got these Tapcons to fix a problem with a 2x4 wooden mudsill that had been pushed in by a tree that grew outside the garage and eventually got so big that the trunk started to push the garage wall inwards. After we removed the tree we still had a problem of the mudsill being out of alignment by about 1 1/4" so we needed something long and strong that would re-anchor it in place. After using a hydraulic bottle jack wedged with a 4x4 against our tractor's rear tire to get the mudsill pushed back into alignment, we installed the Tapcon to keep it securely back in place. Reading the Tapcon instructions, they recommend using an 3/8" ANSI drill bit however when I measured the tip on our 3/8" masonry drill bit, it was wider than the 3/8" diameter of the Tapcon bolt and I was concerned that the bolt would not grip if I used a 3/8" masonry bit. As an alternative, I used a 3/8" Lip & Spur wood bit to drill into the wood so I could get at the concrete pad below. I then used a 9/32" masonry bit to get to the necessary depth in the concrete and followed this up with a 5/16" masonry bit. If you're doing something like this, I also recommend having something available to blow the concrete dust out of the bottom of the hole otherwise the bolt won't go all the way in as the dust gets compressed in the bottom of the hole. We used a drinking straw on the end of our compressed air fitting however a can of compressed air would also do as long as you can get the air down to the bottom of the hole in the concrete with some type of directional nozzle. With the holes drilled and the concrete dust blown out, the Tapcon bolt was reasonably easy to screw in using a 1/2" socket and ratchet. I cinched it down snug with little effort and there was no sign that the grip in the hole wasn't strong. We also put some Tapcons in a dividing wall in the garage that only had nails into the concrete and after I mastered installing the first one, the next one took about 10 mins to drill and install from start to finish. According to the Tapcon brochure, at 2 1/2" of depth (about what you end up with when installing into concrete through a 2 x 4 wooden mudsill), the bolt has around 6,000 lbs of shear strength so it should be fine here in earthquake country.
by LosRubios
4 people found this helpful
Showing 1-10 of 190 reviews