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Internet #300591987

Model # STB2-50512P1

Store SKU #1002236783

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

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
$ 3 65
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Product Overview

  • Versatile solution for anchoring a variety of projects
  • Qualified for use in seismic zones
  • Ideal for concrete and grout-filled block
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
  • California residents see Prop 65 WARNINGS

Product Overview

  • Versatile solution for anchoring a variety of projects
  • Qualified for use in seismic zones
  • Ideal for concrete and grout-filled block
Model #: STB2-50512P1
Sku #: 1002236783
Internet #: 300591987

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
  • California residents see Prop 65 WARNINGS

Info & Guides

You will need Adobe® Acrobat® Reader to view PDF documents. Download a free copy from the Adobe Web site.

Info & Guides

Product Overview

  • Versatile solution for anchoring a variety of projects
  • Qualified for use in seismic zones
  • Ideal for concrete and grout-filled block
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
  • California residents see Prop 65 WARNINGS

Product Overview

  • Versatile solution for anchoring a variety of projects
  • Qualified for use in seismic zones
  • Ideal for concrete and grout-filled block
Model #: STB2-50512P1
Sku #: 1002236783
Internet #: 300591987

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
  • California residents see Prop 65 WARNINGS

Info & Guides

You will need Adobe® Acrobat® Reader to view PDF documents. Download a free copy from the Adobe Web site.

Info & Guides
Key Features

Key Features

Product Overview
Key Features
  • Versatile solution for anchoring a variety of projects
  • Qualified for use in seismic zones
  • Ideal for concrete and grout-filled block
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
  • California residents see Prop 65 WARNINGS

Product Overview

  • Versatile solution for anchoring a variety of projects
  • Qualified for use in seismic zones
  • Ideal for concrete and grout-filled block
Model #: STB2-50512P1
Sku #: 1002236783
Internet #: 300591987

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
  • California residents see Prop 65 WARNINGS

Info & Guides

You will need Adobe® Acrobat® Reader to view PDF documents. Download a free copy from the Adobe Web site.

Info & Guides

Compare Similar

Compare Similar Products
Brand Simpson Strong-Tie Simpson Strong-Tie Simpson Strong-Tie Simpson Strong-Tie
Name Strong-Bolt 1/2 in. x 3-3/4 in. Zinc-Plated Wedge Anchor Strong-Bolt 1/2 in. x 5-1/2 in. Zinc-Plated Wedge Anchor Strong-Bolt 1/2 in. x 7 in. Zinc-Plated Wedge Anchor Strong-Bolt 3/4 in. x 5-1/2 in. Zinc-Plated Wedge Anchor
Price
$2.50
$3.65
$4.25
$5.75
Ratings (15) (26) (6) (15)
Finish Family Zinc Zinc Zinc Zinc
Maximum Weight Capacity (lb.) 0.00 0.00 0.00 0.00
Package Quantity 1 1 1 1
Fastener Length (in.) 3.75 5.5 7 5.5
View Product View Product View Product View 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
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
90-Day

Warranty / Certifications

Manufacturer Warranty
Yes

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
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
90-Day

Warranty / Certifications

Manufacturer Warranty
Yes

Questions & Answers

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

Can I use this bolts for a Ledger on a Deck outdoor?
Asked by: DYIer
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.
Answered by: Flyman
Date published: 2019-07-17

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

Asked by: TimmyT
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!
Answered by: SimpsonStrong-Tie
Date published: 2019-09-05

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

Are they available in hot dipped galvanized?For use with pressure treated pine.
Asked by: Wrenchman
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!
Answered by: SimpsonStrong-Tie
Date published: 2018-12-05

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

Whats the uplift resistance rating for use on gazebo/porch post application? Thx
Asked by: Al
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.
Answered by: Wilson
Date published: 2019-04-30
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Customer Reviews

Simpson Strong-Tie Strong-Bolt 1/2 in. x 5-1/2 in. Zinc-Plated Wedge Anchor is rated 4.6 out of 5 by 26.
Rated 5 out of 5 by from 5 Star Review Rating provided by a verified purchaser
Date published: 2019-07-24
Rated 4 out of 5 by from 4 Star Review Rating provided by a verified purchaser
Date published: 2019-08-28
Rated 5 out of 5 by from 5 Star Review Rating provided by a verified purchaser
Date published: 2019-10-16
Rated 5 out of 5 by from Works great... Works great
Date published: 2019-07-27
Rated 5 out of 5 by from Simple anchor and it worked well. A bit hard... Simple anchor and it worked well. A bit hard getting a hole deeper than the anchor but with a good cleaning out the anchors went in with some firm hammering. Nice to be able to buy a medium quantity of 10 and not have to go with the expensive single units or the over kill box of 25!
Date published: 2019-06-25
Rated 1 out of 5 by from After taking the time and buying an expensive bosch masonry bit and carefully drilling the 1/2" h... After taking the time and buying an expensive bosch masonry bit and carefully drilling the 1/2" hole required with my hammer-drill, I hammered the Strong Bolt into the hole and used a socket wrench to tighten the nut after the bolt was installed all the way down into the hole to the flat washer in the concrete. The bolt just turned in the hole when turning the nut and would not expand nor grip the concrete which screwed-up the entire project. Should have bought another product. I have successfully installed expansion bolts into concrete before so apparently, this one was defective.
Date published: 2018-08-13
Rated 5 out of 5 by from Worked great. Just make sure you follow instructions. Drill bit size and depth is important. Worked great. Just make sure you follow instructions. Drill bit size and depth is important.
Date published: 2019-07-10
Rated 5 out of 5 by from Great anchor for wood or metal studs to a concrete slab. Great anchor for wood or metal studs to a concrete slab.
Date published: 2019-07-17
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