Hex Head Tek Screw With Washer, Plated
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Hex Head Tek Screw With Washer, Plated

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. EPDM washer under the head provides a consistent weather-tight seal. These fasteners are available in a zinc plated finish.

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 Stainless
Material AISI 1016 - 1024 or equivalent steel 410 or 18-8 stainless steel
Heat Treatment Screws shall be quenched in liquid and then
tempered by reheating to 625°F minimum.
410 stainless steel screws shall be hardened
and tempered by heating to 1800°-1900°F
sufficient for austenitization, held for at least
1/2 hour and rapid air or oil-quenched then
reheating to 500°-600°F for at least 1 hour
and air cooled to provide the specified hardness.
Case Hardness Rockwell C52 - 58 410 SS: Rockwell C55 minimum
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) 410 SS: Rockwell C38 - 42 (after tempering)
18-8 SS: Rockwell B90 - C25 (approx.)

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.

Dimensional Specifications & Product DetailsNeo-EPDM Washers Used With Self Drilling Screws

Neo-EPDM Washers Used With Self Drilling Screws dimensions
For Use
with
Screw of
this
Nominal
Diameter
S N G C E
Outside
Diameter of
Steel Section
Inside
Diameter of
Steel Section
Thickness
of Steel
Section
Inside
Diameter of
EPDM Section
Thickness of
EPDM Section
Max Min Max Min Ref Max Min Max Min
#8 0.507 0.491 0.212 0.196 0.031 0.149 0.126 0.087 0.070
#10 0.507 0.491 0.212 0.196 0.031 0.149 0.023 0.087 0.070
#12 0.558 0.542 0.243 0.227 0.031 0.197 0.172 0.087 0.070
#14 0.617 0.601 0.275 0.259 0.031 0.232 0.208 0.087 0.070
  1. NOTE: There is no single standard for Neo-EPDM dimensions. These values are offered as a guide; deviations from these specifications may occur.
  2. All dimensions are in inches.
Material Steel Section of Washer: 20 gauge steel
Elastic Section of Washer: Style 40 EPDM sheet
Hardness EPDM Material: Shore A 65 - 75 (Durometer scale)
Plating Steel Section of Washer: Galvanized
Hex Head Tek Screw With Washer, Plated
View
Diameter Thread Pitch Length Tek Type Item # Availability Price Quantity UOM
#8 18 1/2 #2 DWHP 80050 In Stock $0.1625/EA EA
#8 18 3/4 #2 DWHP 80075 In Stock $0.07205/EA EA
#8 18 1 #2 DWHP 80100 In Stock $0.07072/EA EA
#8 18 1 1/4 #2 DWHP 80125 In Stock $0.08791/EA EA
#8 18 1 1/2 #2 DWHP 80150 In Stock $0.08547/EA EA
#8 18 2 #2 DWHP 80200 In Stock $0.10029/EA EA
#10 16 3/4 #3 DWHP 100075 In Stock $0.06604/EA EA
#10 16 1 #3 DWHP 100100 In Stock $0.08187/EA EA
#10 16 1 1/4 #3 DWHP 100125 In Stock $0.09864/EA EA
#10 16 1 1/2 #3 DWHP 100150 In Stock $0.09932/EA EA
#10 16 2 #3 DWHP 100200 In Stock $0.10357/EA EA
#10 16 2 1/2 #3 DWHP 100250 In Stock $0.14781/EA EA
#12 14 3/4 #3 DWHP 120075 In Stock $0.06383/EA EA
#12 14 1 #3 DWHP 120100 In Stock $0.08213/EA EA
#12 14 1 1/4 #3 DWHP 120125 In Stock $0.09197/EA EA
#12 14 1 1/2 #3 DWHP 120150 In Stock $0.11381/EA EA
#12 14 2 #3 DWHP 120200 In Stock $0.10504/EA EA
#12 14 2 1/2 #3 DWHP 120250 In Stock $0.1871/EA EA
#12 14 3 #3 DWHP 120300 In Stock $0.16019/EA EA
#14 14 3/4 #3 DWHP 140075 In Stock $0.10955/EA EA
#14 14 1 #3 DWHP 140100 In Stock $0.10718/EA EA
#14 14 1 1/4 #3 DWHP 140125 In Stock $0.11719/EA EA
#14 14 1 1/2 #3 DWHP 140150 In Stock $0.15795/EA EA
#14 14 2 #3 DWHP 140200 3-5 Working Days $0.14758/EA EA
#14 14 2 1/2 #3 DWHP 140250 In Stock $0.23425/EA EA
#14 14 3 #3 DWHP 140300 In Stock $0.218/EA EA
#14 14 6 #3 DWHP 140600 In Stock $0.68196/EA EA