Eliminates torque
variations caused by paint build-up, weld flash
or foreign material
AVAILABLE
FEATURES:
•
GER-NIB® -
for particularly torque sensitive applications
•
SEMS -
add a washer under the head to span larger holes,
protect fragile surfaces, and distribute load.
ABOUT
TEKS®:
ITW Shakeproof
TEKS® Self-Drilling Fasteners
work great in both sheet metals and non-metals.
Once the hole is drilled, the fastener taps
the hole in the same way as thread forming
or cutting screws do.
The mating threads are created to match
the threaded fastener perfectly. The screw
is designed so that the drilling function
is completed before the initial thread engages
so that all voids and material thicknesses
are accounted for.
DRILLING
Figure 1 shows a No. 8-18
Teks fastener drilling a hole in steel. Maximum
drilling efficiency is attained as it advances
at the rate of .004" per revolution.
The screw thread rate of advancement, however, is .055" per revolution.
It is therefore essential that the drilling function be complete and the material
be fully penetrated before the first screw thread engages. To meet this requirement,
the unthreaded length of the Teks point must be equal to, or greater than,
the material thickness to be drilled. It is important to understand that where
more than one sheet of material is involved, the calculation of the total thickness
of the material to be drilled must include voids or spaces between the sheets.
Figure 2 illustrates three examples.
NO. 6
DIAMETER PHILLIPS PAN HEADS
Number 6 diameter Phillips pan head Teks fasteners
are all manufactured with oversize head dimensions
to provide added control during driving and installation.
Outside diameter of head (inches): .295/.270
Head height (inches): 115/.105
For
more information about our products, or to
request a product catalog, e-mail us:
