Technical Specifications

There are numerous technical specifications that must be considered when using Tapcon screws. These concrete screws come in a range of lengths, ranging from 1 1/4" to 6 inches. Tapcons® can be embedded in many different depths and are available in two different anchor head styles - flat or hex. Depending on the specifications needed, you will find the right fastener for any job.

Standard – Stalguard Plated Tapcon Concrete Screw
ULTIMATE HOLDING VALUES*

Anchor Diameter Inches	Anchor Length Inches	Drill Bit	Depth Of Embed.	3320 PSI Pull-Out Lbs.	Concrete Shear Lbs.	1500 PSI Pull-Out Lbs.	Hollow Block Shear Lbs.	Head Style
3/16	1-1/4	5/32	1	480	823			Flat or Hex
	1-3/4		1-1/4	756	829	520	938	Flat or Hex
	2-1/4		1-1/2	856	1022			Flat or Hex
	2-3/4		1-3/4	1124	1075			Flat or Hex
	3-1/4							Flat or Hex
	3-3/4							Flat or Hex
	4							Flat or Hex
1/4	1-1/4	3/16	1	936	1479			Flat or Hex
	1-3/4		1-1/4	1140	1879	873	1590	Flat or Hex
	2-1/4		1-1/2	1480	1859			Flat or Hex
	2-3/4		1-3/4	1932	1901			Flat or Hex
	3-1/4							Flat or Hex
	3-3/4							Flat or Hex
	4							Flat or Hex
	5							Flat or Hex
	6							Flat or Hex

Crete-Flex – Stainless Steel Tapcon Concrete Screws
ULTIMATE HOLDING VALUES*

Anchor Diameter Inches	Anchor Length Inches	Drill Bit Bit	Depth Of Embed	3350 PSI Pull-Out Lbs.	Concrete Shear Lbs.	2070 PSI Pull-Out Lbs.	Hollow Block Shear Lbs.	Head Style
1/4	1-1/4	.234	1	762				Flat or Hex
	1-3/4		1-1/4			780	424	Flat or Hex
	2-1/4		1-3/4	2505	2591			Flat or Hex
	2-3/4		2		2729			Flat or Hex
	3-1/4							Flat or Hex
	3-3/4							Flat or Hex
	4							Flat or Hex
	5							Flat
	6							Flat

*Values shown are average ultimate values and are offered only as a guide and are not guaranteed.  A safety factor of 4:1 or 25% is generally accepted as a safe working load.  Reference should be made to applicable codes for the specific working ratio.  *Tested by ATEC in accordance with ASTM E488-90 and ICBO   Minimum embedment for satisfactory anchor performance is 4-1/2 bolt diameters.  Deeper embedment will yield higher tension and shear capacity.

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