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Types of Concrete Screws

Sunday, June 17, 2012
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Manufacturing

Concrete masonry screws are manufactured in the United States under the brand name Tapcon® and are sold by Concrete Fastening Systems™, Inc. The threads are designed with Advance Threadform Technology™ to allow for easier installation and less required torque for installation. The Tapcon® is coated with a long life coating called Climaseal®, is Miami-Dade County approved and has been tested by ICC-ES with report number ESR-1671. Most other concrete masonry screw is manufactured and imported into the United States and does not meet the same specifications as the original Tapcon®. The imported screws are less expensive and, as with most things in life, you get the value that you pay for.

Materials

Masonry or concrete screws are manufactured from steel. The standard blue Climaseal® coated Tapcon® is made from low-grade carbon steel. The stainless steel Tapcon® is manufactured from a 410 stainless steel that is coated with silver Climaseal®. The standard large diameter Tapcon® or LDT has an anchor body made from Grade 5 hardened carbon steel that is zinc plated. The stainless steel LDT is made from a 410 stainless steel with no added coating. The unique feature for all of the Tapcon® is that the threads are hardened allowing them to cut into very abrasive masonry without hardening the anchor body.

Diameters

Both the standard blue and the stainless steel Tapcon® come in two diameters of 3/16” and 1/4”. They require a predrilled hole in the masonry to be 5/32” and 3/16” respectively. The Large Diameter Tapcon (LDT) carbon steel come in diameters of 3/8”, 1/2”, 5/8” and 3/4” with bit requirements of 5/16”, 3/8”, 1/2” and 5/8”. The stainless steel LDT is available in diameters of 3/8” and 1/2”, requiring a 5/16” and a 3/8” bit. The hole in the masonry must be drilled using a bit that meets ANSI standard B212.15-1994.

Lengths

DiameterLengthDiameterLength
3/16” 1-1/4” 1/4” 1-1/4”
  1-3/4”   1-3/4”
  2-1/4”   2-1/4”
  2-3/4   2-3/4
  3-1/4   3-1/4
  3-3/4   3-3/4
  4   4
      5
      6
3/8” Standard 1-3/4” 3/8” Stainless 1-3/4”
  2-1/2”   2-1/2”
  3’   3’
  4”   4”
  5”   5”
1/2” Standard 3”   3”
  4”   4”
  5”   5”
  6”   6”
5/8” 4”    
  5”    
  6”    
3/4" 4-1/2”    
  5-1/2”    

Head Configuration

The 3/16” and 1/4” Tapcon® come with a hex washer head and a flat countersunk Phillips, while the LDT is only available in a hex washer head and is serrated.

You can view Tapcon screws here.

Check-out CONFAST concrete screws here.

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Always use personal protective equipmentAs with any anchoring project, it is important to keep safety in mind and follow instructions carefully. Always remember to wear safety goggles, handle all tools with extra care and follow all technical specifications. This article is meant to serve only as a basic explanation of concrete fasteners. Always refer to manufacturer's instructions or consult a contracting expert during any anchoring project.

Article Written By:
Mike Pistorino, Vice-President Operations

 

 

 

 


Concrete Fastening Systems, Inc. has over 40 years of experience selling concrete fasteners. We can ship out one box or a whole pallet of concrete anchors. Our products are of the highest quality... "your satisfaction is guaranteed". We ship all orders the same day the order is received.

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