Often asked: What Do All Male Concrete Fasteners (except For The Concrete Screw) Require The Hole To Equal?

What are the different types of concrete anchors?

Concrete Fasteners

  • Wedge Anchors. Designed for light to heavy-duty anchoring into solid concrete.
  • Sleeve Anchors. For light to medium-duty fastening/anchoring to concrete, brick or block base material.
  • Tapcon® Screws.
  • CONFAST® Screws.
  • Drop-In Anchors.
  • Machine Screw Anchors.
  • Leadwood Screw Anchors.
  • Single Expansion Anchors.

How much deeper than the anchor being installed should the hole be drilled?

How to drill hole: When drilling a hole into concrete, brick or block base material, the hole must be drilled 1/2″ deeper than the concrete anchor will penetrate. Why: The extra depth of the hole will ensure that the anchor does not bottom out and will allow space for dust from the drilling process.

What must be used to drill a hole in the masonry when installing a masonry fastener?

The 3/16” diameter masonry screw requires the use of 5/32” carbide tipped bit for drilling the hole. The 1/4” diameter requires the use of a 3/16” carbide tipped bit.

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What is the best concrete anchor?

Quick Overview: Our Best ​Concrete Anchors Choices

Product Price
The Hillman Group 370828 Hex Head Sleeve Anchor, 3/8 X 3-Inch, 20-Pack $16.99 Check price
Simpson Strong Tie STB2-50334 1/2-Inch by 3-3/4-Inch Bolt Wedge Anchor for Cracked and Uncracked Concrete, 25-Pack $25.45 Check price

What is the strongest type of concrete anchor?

Types Of Masonry Anchors

  • Double Expansion Shield Anchors are used primarily used in brick and block.
  • Sleeve anchors are fairly simple to use and are primarily used in brick or block.
  • Wedge Anchors are extremely popular and are one of the strongest anchors for hold strength.

How deep do concrete anchors need to be?

Steps to Installing Concrete Fasteners



The hole should be drilled 1/4″ to 1/2″ deeper into the base material than the anchor will penetrate. This allows for any material to fall when the anchor is inserted into the hole. After the hole is drilled, it must be cleaned of all debris, material or dust.

How close to the edge of concrete can you put an anchor?

Less Than 10 Anchor Minimum Spacing



Rule: Mechanical type anchors should not be set a minimum of 5 anchor diameters from an unsupported edge. Explanation: If set too close to an unsupported edge, the outward pressure of the concrete anchor will decrease the holding value of the anchor or make it non-existent.

How far apart do concrete anchors need to be?

A rule-of-thumb in the concrete-fastener industry is that the minimum spacing should be 10 diameters from each anchor, and measured center to center. The spacing from an unsupported edge should be at least five-anchor diameters.

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How do you screw into masonry?

Installing Tapcon Screws into Brick

  1. Drill a hole into the brick or the mortar joint using a hammer drill with a carbide drill bit that meets ANSI standards and is the correct diameter of the tapcon being installed.
  2. Drill hole a minimum of 1/2” deeper into the brick or mortar joint than the tapcon screw will penetrate.

Do concrete screws need a pilot hole?

What are concrete screws used for? Simply put, self tapping screws will tap their own head which means they will need a small hole drilled ahead of a full-sized hole as a guide, otherwise known as a pilot hole.

Can you screw directly into concrete?

Concrete screws provide a quick, easy and incredibly strong way to fasten to concrete. And best of all, there’s no hammering required or anchor or shield to install. All you do is drill a hole and drive in the screw. That’s it.

Can you use regular screws in concrete?

To put screws in concrete you need special screws, a drill and the right technique. Concrete screws are the only kind of screws that are strong enough to penetrate concrete. They come in different lengths, and it’s important to have several sizes on hand.

Will drilling into concrete crack it?

Drilling, nailing and screwing can all cause concrete to crack if they’re not done properly. Although it seems like a very tough material, concrete is in fact extremely brittle and prone to cracking.

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