Internet #300591987

Model #STB2-50512P1

Store SKU #1002236783

Strong-Bolt 1/2 in. x 5-1/2 in. Zinc-Plated Wedge Anchor

  • Versatile solution for anchoring a variety of projects
  • Qualified for use in seismic zones
  • Ideal for concrete and grout-filled block
  • See More Details

Frequently Bought Together

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Price:
$365

Product Overview

Titen HD Mudsill Install

The Professional’s Choice for Anchoring

Titen HD® heavy-duty screw anchors install 5x faster than typical wedge anchors

Titen 2 Install

Fastening for Concrete and Masonry

Titen® 2 concrete and masonry screws are ideal for commercial and residential applications

Strong-Bolt 2 Install

Indoor or Outdoor Anchoring Solutions

Strong-Bolt® 2 wedge anchor provides heavy-duty structural anchoring in both indoor and outdoor applications

Titen HD Install

Removable Anchors Offer Installation Flexibility

Titen HD heavy-duty screw anchors are ideal for projects where anchors may need to be removed

Titen 2 Install

Sheetrock Installation Tips and Tricks

Use Titen 2 concrete and masonry screws to attach furring strips for sheetrock installation

Overhead anchor install

Overhead Anchoring Made Easy

Titen HD rod hangers and DIA drop-ins are ideal for installing mechanical, electrical or plumbing overhead

Strong-Bolt® 2 Installed

Concrete Anchoring Tips and Tricks

Code-listed for seismic and cracked-concrete applications

Titen HD Screw Anchor

Screw Anchor

Can be installed closer to concrete edge than wedge anchors

Titen 2 Screw

Concrete/Masonry Screws

Patented thread design for faster installation

THD rod hanger

Overhead Rod Hanger

No secondary setting needed to install overhead anchor

DIA drop-in anchor

Drop-In Anchor

Flush-mount anchoring into concrete

STB2 wedge anchor

Wedge Anchor

Strong-Bolt 2 wedge anchor tested for performance in concrete or grout-filled block

SL sleeve anchor

Sleeve Anchor

Ideal for anchoring into softer materials, such as brick

From complex infrastructure projects to do-it-yourself ventures, Simpson Strong-Tie offers a wide variety of anchoring products to meet virtually any need. Our mechanical anchors are designed to install easily and securely into a variety of base materials, including concrete and brick to hollow and grouted CMU. They offer optimal performance even in the most demanding structural applications. The Strong‑Bolt 2 is a wedge-type expansion anchor designed for optimal performance in cracked and uncracked concrete as well as uncracked masonry.
  • Tri-segmented clip: Each segment adjusts independently, increasing follow-up expansion should the hole increase in size as a result of a crack
  • Dual embossments on each clip segment: Enables clip to undercut into the concrete thereby increasing follow-up expansion should a crack occur
  • Standard (ANSI) fractional anchor: Fits most fixtures and installs with common drill bit sizes and tools
  • Suitable for horizontal, vertical and overhead applications
  • Made from zinc-plated carbon steel
  • Shop all Simpson Strong-Tie here.
  • California residents

Info & Guides

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BrandSimpson Strong-TieSimpson Strong-TieSimpson Strong-TieSimpson Strong-Tie
NameStrong-Bolt 1/2 in. x 3-3/4 in. Zinc-Plated Wedge AnchorStrong-Bolt 1/2 in. x 5-1/2 in. Zinc-Plated Wedge AnchorStrong-Bolt 5/8 in. x 5 in. Zinc-Plated Wedge AnchorStrong-Bolt 1/2 in. x 7 in. Zinc-Plated Wedge Anchor
Price
$250
$365
$425
$555
Ratings
(48)
(52)
(31)
(32)
Fastener Length (in.)3.755.557
Fastener Head StyleNo HeadNo HeadNo HeadNo Head
Fastener/Connector MaterialSteelSteelSteelSteel
Package Quantity1111
Maximum Weight Capacity (lb.)0.000.000.000.00
Finish FamilyZincZincZincZinc
Anchor Diameter (in.)1/2"1/2"5/8"1/2"
Fastener TypeWedge AnchorsWedge AnchorsWedge AnchorsWedge Anchors
View ProductView ProductView ProductView Product

Specifications

Dimensions

Anchor Diameter (in.)
1/2"
Anchor Length (in.)
5.5
Fastener Length (in.)
5.5
Required Drill Hole Size (in.)
0.5

Details

Color Family
Steel
Fastener Head Style
No Head
Fastener Plating
Other
Fastener Type
Wedge Anchors
Fastener/Connector Material
Steel
Fastening Base Material
Brick,Concrete
Features
No Additional Features
Finish
Zinc-Plated Carbon Steel
Finish Family
Zinc
Included
No Additional Items Included
Interior/Exterior
Interior
Maximum Weight Capacity (lb.)
0.00
Measurement Standard
SAE
Package Quantity
1
Product Weight (lb.)
0.3161 lb
Returnable
180-Day

Warranty / Certifications

Manufacturer Warranty
Limited Warranty

Questions & Answers

9Questions10Answers

What size hole do I drill for this 1/2 inch Wedge Anchor? I know it's may sound obvious to some p...

Asked by Dutch January 4, 2021
1
Answer

Drill bit diameter needs to match that of the wedge anchor. You will need 1/2" diameter bit for 1/2" diameter wedge anchor. A couple of points to consider: 1. Leave some backup material at the bottom of slab, i.e. do not try to drill right through as the drill bit may blow out the bottom of slab due to hammer action. Leave minimum of 2 3/4" back up material. 2. Zinc plated finish does not provide much of corrosion protection. Consider Strong-Bolt wedge anchor in 304 stainless steel finish.

Is this anchor suitable for exterior applications?

Asked by Kurt July 17, 2020
1
Answer

The zinc plated carbon steel Strong-Bolt 2 has a low level of corrosion protection and would be for dry, interior conditions. For exterior, please see the Type 304 stainless steel (STB2-505124SS) which provides a high level of corrosion protection or the Type 316 stainless steel (STB2-505126SS) which is for severe conditions. Please see the Corrosion section of our website for complete information and to determine the recommended finish for your condition: https://www.strongtie.com/solutions/corrosion. Thank you!

What is the minimum engagement for this bolt?

Asked by JCN February 24, 2020
1
Answer

We are not sure we are understanding the question correctly. Please contact our Engineering Support Dept. for assistance - 800/999-5099. Thank you!

what grade bolt is this?

Asked by Chris December 10, 2019
1
Answer

The STB2 does not fall under SAE grade designation. Please feel free to call us to discuss further - 800/999-5099. Thank you!

Is this an SD2 code compliant product?

Asked by Manny December 6, 2019
1
Answer

We are not familiar with "SD2" code compliance. Please see our website for all compliance documents. Feel free to contact our Engineering Support Department (800-999-5099) with any further questions regarding this matter. Thank you!

What is the best paint to use on the zinc plated wedge anchors?

Asked by TimmyT August 27, 2019
1
Answer

The wedge anchors should not be painted before installed/tightened to the setting torque as the paint can alter frictional characteristics and therefore performance of the anchor. We do not have any restrictions if just painting the nut and exposed top part of the anchor after installed/tightened, however we do not have any information/guidelines to provide regarding painting zinc coated steel as this is not our area of expertise. You may wish to check further with a paint manufacturer or the American Galvanizers Association for information on painting zinc coated/galvanized steel. Thank you!

Are they available in hot dipped galvanized?For use with pressure treated pine.

Asked by Wrenchman November 15, 2018
1
Answer

The STB2-50512R25 is zinc plated which provides a low level of corrosion resistance and can be used with limited treated lumbers in dry service only (generally interior). This anchor is also available in Type 304 Stainless Steel (STB2-505124SS) which provides a high level of corrosion resistance and Type 316 (STB2-505126SS) which provides severe level of corrosion protection. Please see the "Guidelines for Selecting the Proper Materials and Coatings" page on our website to determine the recommended finish based on your condition. Thank you!

Whats the uplift resistance rating for use on gazebo/porch post application? Thx

Asked by Al August 27, 2018
1
Answer

Can't say but after drilling the correct size, 1/2" hole with a new Bosch concrete/masonry bit and following the instructions on the package to pound this wedge anchor in place (per my review) and having the anchor just spin in the hole and not grab when trying to tighten the nut, I won't be buying this brand again. I used it to anchor a Simpson Strong tie 4 X 4 post-base bracket to my concrete for the bottom post of a stairway handrail to my deck and this thing's failure botched the entire project.

Can I use this bolts for a Ledger on a Deck outdoor?

Asked by Ruben May 3, 2018
2
Answers

As long as you are mounting the ledger to a concrete block wall these are great anchors. Just drill a hole through the board and the concrete block, tap the anchor in place and tighten down the nut.

Customer Reviews

  • 4.5
    out of 52 reviews
  • 87% recommend this product
5star-icon40
4star-icon5
3star-icon1
2star-icon2
1star-icon4
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Showing 1-10 of 52 reviews
Not coming out once in place...
Not coming out once in place
by Sgt
Easy to use, worked great!
Easy to use, worked great!
by Virgil
These anchors work very well.
These anchors work very well.
by Joe
Rating provided by a verified purchaser...
Rating provided by a verified purchaser
by HomeDepotCustomer
Better quality than the redhead brand because their tips are...
Better quality than the redhead brand because their tips are smooth down about 1/4 inch. This allows you to drive them into the concrete without damaging the nut treads.
by Best
Rating provided by a verified purchaser...
Rating provided by a verified purchaser
by HomeDepotCustomer
Rating provided by a verified purchaser...
Rating provided by a verified purchaser
by HomeDepotCustomer
by HomeDepotCustomer
These work as well as the Hiltis, Dewalts, and others for standard or cracked concrete. I can get...
These work as well as the Hiltis, Dewalts, and others for standard or cracked concrete. I can get these right away.
by Montanamorgan
Rating provided by a verified purchaser...
Rating provided by a verified purchaser
by HomeDepotCustomer
Showing 1-10 of 52 reviews