Installing Flat Head Tapcon

Flat Head Tapcon

The complete name of a flat-headed Tapcon is “flat Phillips countersunk Tapcon”. The flat-headed Tapcon has a Phillips drive so that a Phillips type screwdriver can be used. The 3/16” flat-headed Tapcon utilizes a #2-bit tip and the 1/4” requires a #3-bit tip.

Diameter of Flat Head Tapcon

The two diameters that are available in the flat-headed Tapcon are a 3/16” diameter and a 1/4” diameter.

Length of Flat Head Tapcon

The flat-headed Tapcon length is measured as an overall length of the screw including the head. Flat-headed Tapcons are manufactured in seven lengths for the 3/16” diameter: 1-1/4”, 1-3/4”, 2-1/4”, 2-3/4”, 3-1/4”, 3-3/4” and 4”. The 1/4” diameter is available in nine lengths: 1-1/4”, 1-3/4”, 2-1/4”, 2-3/4”, 3-1/4”, 3-3/4” and 4”, 5”, 6”.

Embedment Depth

Minimum embedment depth of a flat-headed Tapcon is 1”.
Maximum embedment depth of a flat-headed Tapcon is 1-3/4”.

Hole Diameter

The hole diameter that needs to be drilled into the base material is critical because the tolerance between the flat-headed Tapcon diameter and hole size is critical. The hole must be drilled with a hammer type drill and by using carbide tipped drill bit that meets ANSI standards. The 3/16” diameter hex head Tapcon requires a 5/32” hole and the 1/4” diameter flat-headed Tapcon requires a 3/16” hole.

Hole Depth

The depth of the hole in the base material needs to be a minimum of 1/4” deeper than the flat-headed Tapcon will penetrate. This will ensure space for the dust that is created during the tapping process to fall out of the way, ensuring that the flat-headed Tapcon will not bottom out in the hole.

Hold Values - Flat-Headed Tapcon - 2000PSI Concrete

Diameter	Minimum Embedment Depth	Tension	Shear
3/16”	1”	600 lbs	720 lbs
1/4”	1”	1380 lbs	1200 lbs

Flat Head Tapcon Product Information

Each flat-headed Tapcon comes packaged with one correct diameter and length bit per box.

Description	Part#	Bit (Length x Diameter)	Quantity/Box
3/16” x 1-1/4	TCF316114	5/32” x 3-1/2”	100
3/16” x 1-3/4”	TCF316134	5/32” x 3-1/2”	100
3/16” x 2-1/4”	TCF316214	5/32” x 4-1/2”	100
3/16” x 2-3/4”	TCF316234	5/32” x 4-1/2”	100
3/16” x 3-1/4”	TCF316314	5/32” x 4-1/2”	100
3/16” x 3-3/4”	TCF316334	5/32” x 5-1/2”	100
3/16” x 4”	TCF3164	5/32” x 5-1/2”	100
1/4” x 1-1/4”	TCF14114	3/16” x 3-1/2”	100
1/4” x 1-3/4”	TCF14134	3/16” x 3-1/2”	100
1/4” x 2-1/4”	TCF14214	3/16” x 4-1/2”	100
1/4” x 2-3/4”	TCF14234	3/16” x 4-1/2”	100
1/4” x 3-1/4”	TCF14314	3/16” x 4-1/2”	100
1/4” x 3-3/4”	TCF14334	3/16” x 5-1/2”	100
1/4” x 4”	TCF144	3/16” x 5-1/2”	100
1/4” x 5”	TCF145	3/16” x 6-1/2”	100
1/4” x 6”	TCF146	3/16” x 7-1/2”	100