Tapcon Specifications - Concrete Fastening Systems, Inc.
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Tapcon Specifications

Tapcon Screws Specifications: Sizes and Types

The standard blue Tapcon brand masonry screw is manufactured in two diameters of 3/16” and 1/4” and is available with either a hex washer head or flat phillips countersank head.  The threads are Advanced Threadform Technology™ with a nail point at the point of the screw, and blue Climaseal™ finish. The stainless steel Tapcon comes in a 3/16” diameter in the flat countersunk head and in a 1/4” diameter with the hex washer head and the flat phillips countersank.

  • Diameter – CAD drawings can be found on the manufacturer’s website:  Tapcon Drawing
  • Length – Both the 3/16” and the 1/4” Tapcon are available in the same lengths, with the 1/4” also available in lengths of 5” and 6”.
    Lengths of Tapcon
    1/4” only 5”
    1/4” only 6”
  • Threads – the standard blue Tapcon has Advanced Threadform Technology™ to provide easier installation and less required torque when installing the screw. The stainless steel Tapcon has the Original Notched Hi-Lo™ thread.
  • Point – the pointed end of the screw allows for easier insertion into the base material or through a hole in the item being fastened.
  • Climaseal™ - A special coating that is colored blue for the standard Tapcon and colored silver for the 410 stainless steel Tapcon which provides extended corrosion protection.
  • Packaging – both the standard and 410 stainless steel Tapcon are packaged 100 pieces per box with matching carbide tipped bit and 500 per carton.

Technical Specifications

Included in the technical specifications are the holding values, hole diameter, fixture thickness, minimum embedment, and maximum embedment.

  • Hole Diameter – the diameter of the hole to be drilled in the base material for the Tapcon is slightly smaller than the diameter of Tapcon being installed.  A 3/16” Tapcon requires a 5/32” hole and a 1/4” Tapcon requires a 3/16” hole.
  • Bit Diameter – the bit must meet ANSI standards, have a carbide tip and be used in a hammer drill that is set in the hammer and rotation mode while drilling the hole.
  • Minimum Embedment - the Tapcon masonry screw must be installed in the base material a minimum of 1".
  • Maximum Embedment – 1-3/4” depth is the deepest that a Tapcon masonry screw can be embedded in the base material; more shallow maximum embedment is needed for harder and more abrasive base materials.
  • Holding Values – can be found on the following link for technical Information

More Tapcons

Blue Hex Head Tapcon Concrete Screw

Blue Flat Head Tapcon Concrete Screw

Hex Head Stainless Steel Tapcon Screw

Flat Head Stainless Steel Tapcon Screw

Large Diameter Tapcon Zinc Plated - LDT

Large Diameter Tapcon Stainless - LDTS



Please remember with all fastening jobs to keep safety in mind. Always follow safety instructions on all tools, and refer to manufacturer's installation instructions when available and always remember to wear safety goggles!

Article written by: Bob Carlisle, President Concrete Fastening Systems, Inc

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