Hex Head Tek Screw With Integral Washer, Coated
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Hex Head Tek Screw With Integral Washer, Coated

Hex head self drilling screws are fasteners that have a drill point which enables users to drill them directly into material without having to pre-drill a hole. Integral EPDM washer installed into the head provides a consistent weather-tight seal. As the washer is integral to the head, these screws are superior to screws with a separate washer since they eliminate corrosion due to moisture getting in between the head and the top of the washer. In addition to the standard drill points, some sizes are available in a stitch point for lap joints in metal roofing. These fasteners are available with a long life coating.

Dimensional Specifications & Product Details#2 & #3 Standard Drill Point for Self Drilling Screws

#2 & #3 Standard Drill Point for Self Drilling Screws dimensions
SAE J78-2013
Nominal Size or
Basic Screw
Diameter
Threads
per Inch
T t P Minimum Practical Nominal Screw
Lengths, Formed Points
Minimum
Torsional
Strength, lb - in
(STEEL SCREWS ONLY)
Major
Diameter
Minor
Diameter
Protrusion
Allowance
Max Min Max Min #2
Point
#3
Point
90° Head,
#2 Point
Csk Head,
#2 Point
90° Head,
#3 Point
Csk Head,
#3 Point
#4 0.112 24 0.114 0.110 0.086 0.082 0.163 - 5/16 3/8 - - 14
#6 0.138 20 0.139 0.135 0.104 0.099 0.190 0.220 5/16 3/8 3/8 7/16 24
#8 0.164 18 0.166 0.161 0.122 0.116 0.211 0.251 3/8 7/16 7/16 1/2 42
#10 0.190 16 0.189 0.183 0.141 0.135 0.235 0.300 7/16 1/2 1/2 9/16 61
#12 0.216 14 0.215 0.209 0.164 0.157 0.283 0.353 1/2 5/8 1/2 5/8 92
#14 0.250 14 0.246 0.240 0.192 0.185 0.318 0.393 1/2 5/8 1/2 5/8 150
  1. All dimensions are in inches.
  Steel
Material AISI 1016 - 1024 or equivalent steel
Heat Treatment Screws shall be quenched in liquid and then
tempered by reheating to 625°F minimum.
Case Hardness Rockwell C52 - 58
Case Depth No. 4 & 6 diameter: .002 - .007
No. 8 thru 12 diameter: .004 - .009
1/4 diameter & larger: .005 - .011
Core Hardness Rockwell C32 - 40 (after tempering)

Dimensional Specifications#1 Drill Point for Self Drilling Stitch Screws

#1 Drill Point for Self Drilling Stitch Screws dimensions
Nominal
Diameter
Threads
per Inch
W P
Drill Point Width Length of Drill Point
Max Min Max Min
#10 16 0.157 0.149 0.197 0.157
#12 14 0.183 0.173 0.236 0.197
#14 14 0.220 0.210 0.284 0.244
  1. AISI 1016 - 1024 or equivalent steel
  2. All dimensions are in inches.

Dimensional SpecificationsHex & Hex Washer Heads for Self-Tapping & Self-Drilling Screws

Hex & Hex Washer Heads for Self-Tapping & Self-Drilling Screws dimensions
ASME B18.6.3-2013
Nominal
Size
A W H F U
Width
Across Flats
Width
Across
Corners
Height of
Head
Diameter of
Washer
Thickness of
Washer
Max Min Min Max Min Max Min Max Min
#4 0.188 0.181 0.202 0.060 0.049 0.243 0.225 0.019 0.011
#6 0.250 0.244 0.272 0.093 0.080 0.328 0.302 0.025 0.015
#7 0.250 0.244 0.272 0.093 0.080 0.328 0.302 0.029 0.017
#8 0.250 0.244 0.272 0.110 0.096 0.348 0.322 0.031 0.019
#10 0.312 0.305 0.340 0.120 0.105 0.414 0.384 0.031 0.019
#12 0.312 0.305 0.340 0.155 0.139 0.432 0.398 0.039 0.022
#14 0.375 0.367 0.409 0.190 0.172 0.520 0.480 0.050 0.030
  1. All dimensions are in inches.
Narrow Results

Diameter

Width Across Flats

Drive Size

Tek Type

Hex Head Tek Screw With Integral Washer, Coated
View
Diameter Thread Pitch Length Tek Type Item # Availability Price Quantity UOM
#12 14 1 #3 DWHC 120100ULT In Stock $0.15583/EA EA
#12 14 1 1/4 #3 DWHC 120125ULT In Stock $0.22184/EA EA
#14 14 7/8 Stitch DWHC 140087ULT In Stock $0.32759/EA EA