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SS Phillips Flat Head Self Tapping Screw
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SS Phillips Flat Head Self Tapping Screw

SS Phillips Flat Head Self Tapping Screw

Stainless steel self-tapping screws are fasteners that have a tapered point allowing the screw to thread itself into a pre-drilled hole, though some softer materials may not require pre-drilling. Type A self-tapping screws have coarse threads suitable for use in thin metal, composites, and wood in many cases. The threads taper down to the point, allowing the screw to form threads into the material as the screw is installed. Type A screws are often referred to as sheet metal screws, though they are not a self-drilling tek screw. The phillips flat head offers a countersunk design to allow for flush installation. Phillips flat head countersunk type A self-tapping screws listed here are available in 18-8 stainless steel for superior corrosion resistance when compared to steel screws. 

Dimensional SpecificationsType A Flat Head Self Tapping Screw

Type A Threads for Self Tapping Screws dimensions
ASME B18.6.3-2013
Nominal Size
or Basic Screw
Diameter		 Threads
per Inch		 D d Drill
Size		 Recommended
Hole Diameter
Major
Diameter		 Minor
Diameter
Max Min Max Min
#0 0.060 40 0.060 0.057 0.042 0.039    
#1 0.073 32 0.075 0.072 0.051 0.048    
#2 0.086 32 0.088 0.084 0.061 0.056 #48 0.0760
#3 0.099 28 0.101 0.097 0.076 0.071 #46 0.0810
#4 0.112 24 0.114 0.110 0.083 0.078 #44 0.0860
#5 0.125 20 0.130 0.126 0.095 0.090 #36 0.1065
#6 0.138 18 0.141 0.136 0.102 0.096 #32 0.1160
#7 0.151 16 0.158 0.152 0.114 0.108 #30 0.1285
#8 0.164 15 0.168 0.162 0.123 0.116 #29 0.1360
#10 0.190 12 0.194 0.188 0.133 0.126 #21 0.1590
#12 0.216 11 0.221 0.215 0.162 0.155 3/16 0.1875
#14 0.242 10 0.254 0.248 0.185 0.178 5.5mm 0.2165
  1. Tolerance on Length: Up to 1" incl.: +/- 0.03. Over 1": +/- 0.05.
  2. All dimensions are in inches.
Phillips Flat Head for Self-Tapping Screws dimensionsPhillips Flat Head for Self-Tapping Screws dimensions
ASME B18.6.3-2013
Nominal
Size		 A H M R N F G Phillips
Drive
Size
Head Dimensions Phillips Dimensions Protrusion
Above
Gaging
Diameter		 Gaging
Diameter
Diameter Height Diam. Depth Width
Max Min Max Min Max Min
#0 0.112 0.096 0.035 0.026 0.062 0.035 0.014 0.026 0.016 0.078 0
#1 0.137 0.120 0.043 0.033 0.070 0.043 0.015 0.028 0.016 0.101 0
#2 0.162 0.144 0.051 0.040 0.096 0.055 0.017 0.029 0.017 0.124 1
#3 0.187 0.167 0.061 0.047 0.100 0.060 0.018 0.031 0.017 0.148 1
#4 0.212 0.191 0.067 0.055 0.122 0.081 0.018 0.032 0.018 0.172 1
#5 0.237 0.215 0.075 0.062 0.148 0.074 0.027 0.034 0.019 0.196 2
#6 0.262 0.238 0.083 0.069 0.168 0.094 0.029 0.036 0.020 0.220 2
#7 0.287 0.262 0.091 0.076 0.176 0.102 0.030 0.037 0.021 0.243 2
#8 0.312 0.285 0.100 0.084 0.182 0.110 0.030 0.039 0.022 0.267 2
#10 0.362 0.333 0.116 0.098 0.198 0.124 0.032 0.042 0.023 0.313 2
#12 0.412 0.380 0.132 0.112 0.262 0.144 0.035 0.045 0.025 0.362 3
#14 0.462 0.427 0.148 0.126 0.276 0.160 0.036 0.049 0.027 0.410 3
  1. All dimensions are in inches.
SS Phillips Flat Head Self Tapping Screw
View
Diameter Thread Pitch Length Item # Availability Price Quantity UOM
#4 24 3/8 TFPS 40037 In Stock $0.00409/EA EA
#4 24 1/2 TFPS 40050 In Stock $0.08623/EA EA
#4 24 3/4 TFPS 40075 In Stock $0.08324/EA EA
#4 24 1 TFPS 40100 In Stock $0.04087/EA EA
#6 18 3/8 TFPS 60037 In Stock $0.04483/EA EA
#6 18 1/2 TFPS 60050 In Stock $0.04728/EA EA
#6 18 3/4 TFPS 60075 In Stock $0.05546/EA EA
#6 18 1 TFPS 60100 In Stock $0.04087/EA EA
#6 18 1 1/4 TFPS 60125 In Stock $0.07082/EA EA
#6 18 1 1/2 TFPS 60150 In Stock $0.08067/EA EA
#6 18 1 3/4 TFPS 60175 In Stock $0.11483/EA EA
#6 18 2 TFPS 60200 In Stock $0.09612/EA EA
#8 15 1/2 TFPS 80050 In Stock $0.06142/EA EA
#8 15 3/4 TFPS 80075 In Stock $0.06518/EA EA
#8 15 1 TFPS 80100 In Stock $0.11389/EA EA
#8 15 1 1/4 TFPS 80125 In Stock $0.08096/EA EA
#8 15 1 1/2 TFPS 80150 In Stock $0.08974/EA EA
#8 15 1 3/4 TFPS 80175 In Stock $0.10531/EA EA
#8 15 2 TFPS 80200 In Stock $0.15779/EA EA
#8 15 2 1/2 TFPS 80250 In Stock $0.2018/EA EA
#8 15 3 TFPS 80300 In Stock $0.28574/EA EA
#8 15 3 1/2 TFPS 80350 In Stock $0.20433/EA EA
#10 12 1/2 TFPS 100050 In Stock $0.0839/EA EA
#10 12 3/4 TFPS 100075 In Stock $0.09305/EA EA
#10 12 1 TFPS 100100 In Stock $0.10584/EA EA
#10 12 1 1/4 TFPS 100125 In Stock $0.13143/EA EA
#10 12 1 1/2 TFPS 100150 In Stock $0.11635/EA EA
#10 12 1 3/4 TFPS 100175 In Stock $0.1716/EA EA
#10 12 2 TFPS 100200 In Stock $0.20535/EA EA
#10 12 2 1/2 TFPS 100250 In Stock $0.19211/EA EA
#10 12 3 TFPS 100300 In Stock $0.30756/EA EA
#12 11 1/2 TFPS 120050 In Stock $0.20433/EA EA
#12 11 3/4 TFPS 120075 In Stock $0.14655/EA EA
#12 11 1 TFPS 120100 In Stock $0.1718/EA EA
#12 11 1 1/4 TFPS 120125 In Stock $0.18557/EA EA
#12 11 1 1/2 TFPS 120150 In Stock $0.1962/EA EA
#12 11 1 3/4 TFPS 120175 In Stock $0.20311/EA EA
#12 11 2 TFPS 120200 In Stock $0.26833/EA EA
#12 11 2 1/2 TFPS 120250 In Stock $0.31255/EA EA
#12 11 3 TFPS 120300 In Stock $0.30045/EA EA
#12 11 3 1/2 TFPS 120350 In Stock $0.3678/EA EA
#14 10 1/2 TFPS 140050 In Stock $0.2452/EA EA
#14 10 3/4 TFPS 140075 In Stock $0.19873/EA EA
#14 10 1 TFPS 140100 In Stock $0.22517/EA EA
#14 10 1 1/4 TFPS 140125 In Stock $0.24687/EA EA
#14 10 1 1/2 TFPS 140150 In Stock $0.40666/EA EA
#14 10 1 3/4 TFPS 140175 In Stock $0.32783/EA EA
#14 10 2 TFPS 140200 In Stock $0.2819/EA EA
#14 10 2 1/2 TFPS 140250 In Stock $0.39914/EA EA
#14 10 3 TFPS 140300 In Stock $0.53461/EA EA
#14 10 4 TFPS 140400 In Stock $0.81733/EA EA