Search  for anything...

CONFAST 3/4" x 5-1/2" Wedge Anchor Zinc Plated (Box of 20)

  • Based on 1,118 reviews
Condition: New
Checking for the best price...

Buy Now, Pay Later


As low as $12.00 / mo
  • – 6-month term
  • – No impact on credit to apply
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout.

Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Zip, Apple Pay, and Google Pay. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

FREE 30-day refund/replacement

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.


Availability: Only 1 left in stock, order soon!
Fulfilled by Amazon

Arrives Thursday, Oct 22
Order within 17 hours and 59 seconds
Available payment plans shown during checkout

Protection Plan Protect Your Purchase
Checking for protection plans...

Size: 3/4" x 5-1/2"


Number of Items: 20


Features

  • Environment: Built for durability, these anchors are designed for use in a dry environment. Their robust construction ensures longevity, making them perfect for projects anchoring to concrete only, not brick, block or grout.
  • Hole Diameter/Bit Diameter: For optimal installation, use an ANSI imperial bit the same diameter as the diameter of the anchor.
  • Hardware included: Each anchor comes with the required nut and washer to use on the anchor for installation.
  • Secure Hold: The wedge expansion anchor design ensures a dependable and strong hold, ideal for demanding applications.
  • Durability: Built tough with rugged steel construction and zinc plating for superior, long-lasting performance.

Description

Applications The anchor is made from Carbon Steel, and is Zinc Plated. This anchor is designed for use in Concrete only, and should never be used in block or brick base material. Environment The anchor is designed for use in a Dry environment. Hole Diameter/Bit Diameter The anchor requires a 3/4" hole to be drilled in the base material (Concrete only). The hole should be drilled with carbide tipped bit that meets ANSI standards and used in a hammer drill. Diameter of Anchor The diameter of the anchor is 3/4". Length Anchor The length of the anchor is 5-1/2" Thread Length The length of the threads on the anchor is 3-1/4" in length. Minimum Embedment The minimum anchor embedment into the concrete is 3-1/4". Therefore, the anchor must be installed so that a minimum of 3-1/4" of the anchor is embedded into the concrete. Maximum Fixture Thickness The maximum fixture thickness or the maximum thickness of the material being fastened for a anchor is 1-1/2". This will ensure that the minimum embedment of 3-1/4" will be met. Fixture Hole Diameter The hole in the fixture or material being fastened must be larger than the designated diameter of the anchor. The 3/4" diameter anchor requires the hole in the fixture to be 1". Torque Value To be set properly in the concrete, the anchor must be torqued to between 150 - 175 ft./lbs. Spacing between Anchors Each anchor must be spaced a minimum distance of 7-1/2" from each other when measured center to center. Edge Distance It is very important not to install the anchor any closer than 3-3/4" from an unsupported edge of the concrete.

Size: 3/4" x 5-1/2"


Color: Silver


Material: Zinc Plated


Brand: CONFAST


Item dimensions L x W x H: 5.5 x 0.75 x 5.5 inches


Size Name: 3/4" x 5-1/2"


Item Dimensions: 5.5 x 0.75 x 5.5 inches


Number of Pieces: 20


Outside Diameter: 0.75 inches


Screw Head Style: Wedge


Thread Size: 3/4"


Compatible Groove Diameter: 0.75 inches


Maximum Shear Strength: 9378


Color: Silver


Item Shape: Rectangular


Material Type: Zinc Plated


Finish Types: Zinc


Brand: CONFAST


Fastener Type: Screw


Number Of Items: 20


Set Name: Wedge Anchor Set (20 Piece)


Manufacturer: CONFAST


UPC: 820274002261


Model: WA34512


Part Number: WA34512


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, Oct 22

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • Zip Pay in 4
  • Financing through Apple Pay
  • Financing through Google Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Good Product
Size: 3/4" x 5-1/2" Number of Items: 20
Installed 2 lifts. Working great
Reviewed in the United States on May 28, 2026 by Chastity Nickoles

  • Exactly as advertised
Size: 3/4" x 5-1/2" Number of Items: 20
just what i needed
Reviewed in the United States on June 16, 2026 by Amazon Customer

  • ⭐⭐⭐⭐⭐ Strong, reliable anchors — perfect for garage lifts
Used these CONFAST 7/8" x 6" wedge anchors to replace the floor anchors on my car lift, and they worked perfectly. Installation was straightforward, they hold tight, and the zinc plating gives good corrosion resistance. Solid build and exactly what you need to keep heavy equipment secure. If you’re mounting a lift, shelving, or anything heavy to concrete, these anchors get the job done safely and reliably. ... show more
Reviewed in the United States on February 7, 2026 by benbuilt4u

  • Worked great in a 2-post lift
Size: 3/4" x 5-1/2" Number of Items: 20
Used 12 of these in a 2-post lift install. These things are awesome and very robust. Installed all 12 without a problem. Torqued all to 150ft lbs. after 1 week, I retorqued them all and all but 1 retorqued to 150ft lbs with less than 1/2 turn. One pulled almost all the way out. So, I hammered it back through and installed a new one and it torqued with less travel than the failed one. Faulty anchor? Faulty concrete? All good now. ... show more
Reviewed in the United States on April 16, 2024 by Stepside66

  • Great item
Size: 5/8" x 3 1/2" Number of Items: 25
Will have to say had fought a bit came well packaged and held as they are designed to as well. Not one issue with any of them and came with extra washer and nut
Reviewed in the United States on March 15, 2026 by Keith

  • Sturdy and strong heavy duty too
Size: 3/4" x 7" Number of Items: 10
My brother and I is working on a back porch project these things work great I've already purchased some when I was working on my shop when I was installing a car lift Work great on my car lift so I knew it would work great on my brother's back porch holding up 6x6 post
Reviewed in the United States on August 2, 2025 by Todd

  • Amazing price
Great price, every one worked and very secure
Reviewed in the United States on August 4, 2025 by Nick

  • 7/8” x 6” Anchor Bolts
Five of these anchor bolts were used this past Saturday (July 2nd) to secure a 12 step stair stringer to our home foundation. It is still too early to review the longevity of these bolts. However, I can say that they are very strong and the stair stringer and stair deck steps are securely attached to the foundation of the house. They are quite easy to install with the right tools and know how. I have attached pictures to show how they were attached and used. These anchor bolts come with the corresponding nuts and washer. At this early stage I recommend them. ... show more
Reviewed in the United States on July 8, 2022 by Nappy

Can't find a product?

Find it on Amazon first, then paste the link below.
Checking for best price...