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About Tapping Screws
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Compare drilling, pointed, thread-forming, and thread-cutting tips to find the best choice for your material.
Steel Phillips Rounded Head Thread-Cutting Screws
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Cut threads in drilled holes as you turn these screws. Because they remove material, they take less effort to install and put less stress on your workpiece than thread-forming screws. The Phillips drive handles enough torque to keep drivers from slipping and the rounded head creates a finished look.
Length is measured from under the head.
Zinc-Plated Steel—A common choice for areas with occasional exposure to moisture.
Black-Zinc-Plated Steel—The dark finish withstands occasional exposure to moisture while creating a finished look.
Head | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Lg. | Dia. | Ht. | Tapping Screw Type | Drive Size | Approx. Threads per In. | Drill Bit Size | Shank Cross Section | Specs. Met | Pkg. Qty. | Pkg. | |||
Zinc-Plated Steel | |||||||||||||
No. 2 Screw Size | |||||||||||||
| 1/8" | 0.167" | 0.062" | F | No. 1 | 56 | 48 Ga. | Round | ASME B18.6.3, SAE J933 | 50 | 90087A837 | 000000 | ||
| 3/16" | 0.167" | 0.062" | F | No. 1 | 56 | 49 Ga. | Round | ASME B18.6.3, SAE J933 | 100 | 90087A101 | 0000 | ||
| 1/4" | 0.167" | 0.062" | F | No. 1 | 56 | 49 Ga. | Round | ASME B18.6.3, SAE J933 | 100 | 90087A102 | 0000 | ||
| 5/16" | 0.167" | 0.062" | F | No. 1 | 56 | 48 Ga. | Round | ASME B18.6.3, SAE J933 | 50 | 90087A838 | 00000 | ||
| 3/8" | 0.167" | 0.062" | F | No. 1 | 56 | 49 Ga. | Round | ASME B18.6.3, SAE J933 | 100 | 90087A103 | 00000 | ||
| 7/16" | 0.167" | 0.062" | F | No. 1 | 56 | 48 Ga. | Round | ASME B18.6.3, SAE J933 | 50 | 90087A839 | 00000 | ||
No. 4 Screw Size | |||||||||||||
| 3/16" | 0.219" | 0.08" | F | No. 1 | 40 | 41 Ga. | Round | ASME B18.6.3, SAE J933 | 100 | 90087A105 | 00000 | ||
| 1/4" | 0.219" | 0.08" | F | No. 1 | 40 | 41 Ga. | Round | ASME B18.6.3, SAE J933 | 100 | 90087A106 | 0000 | ||
| 5/16" | 0.219" | 0.08" | F | No. 1 | 40 | 41 Ga. | Round | ASME B18.6.3, SAE J933 | 100 | 90087A841 | 00000 | ||
| 3/8" | 0.219" | 0.08" | F | No. 1 | 40 | 41 Ga. | Round | ASME B18.6.3, SAE J933 | 100 | 90087A107 | 00000 | ||
| 7/16" | 0.219" | 0.08" | F | No. 1 | 40 | 41 Ga. | Round | ASME B18.6.3, SAE J933 | 50 | 90087A842 | 00000 | ||
| 1/2" | 0.219" | 0.08" | F | No. 1 | 40 | 41 Ga. | Round | ASME B18.6.3, SAE J933 | 100 | 90087A108 | 0000 | ||
| 5/8" | 0.219" | 0.08" | F | No. 1 | 40 | 41 Ga. | Round | ASME B18.6.3, SAE J933 | 100 | 90087A843 | 00000 | ||
| 3/4" | 0.219" | 0.08" | F | No. 1 | 40 | 41 Ga. | Round | ASME B18.6.3, SAE J933 | 100 | 90087A844 | 00000 | ||
| 7/8" | 0.219" | 0.08" | F | No. 1 | 40 | 41 Ga. | Round | ASME B18.6.3, SAE J933 | 25 | 90087A845 | 00000 | ||
| 1" | 0.219" | 0.08" | F | No. 1 | 40 | 41 Ga. | Round | ASME B18.6.3, SAE J933 | 50 | 90087A846 | 00000 | ||
| 1 1/4" | 0.219" | 0.08" | F | No. 1 | 40 | 41 Ga. | Round | ASME B18.6.3, SAE J933 | 25 | 90087A847 | 00000 | ||
No. 5 Screw Size | |||||||||||||
| 1/4" | 0.245" | 0.089" | F | No. 2 | — | 35 Ga. | Round | ASME B18.6.3, SAE J933 | 25 | 90087A848 | 0000 | ||
| 3/8" | 0.245" | 0.089" | F | No. 2 | — | 35 Ga. | Round | ASME B18.6.3, SAE J933 | 25 | 90087A849 | 0000 | ||
No. 6 Screw Size | |||||||||||||
| 3/16" | 0.27" | 0.097" | F | No. 2 | 32 | 31 Ga. | Round | ASME B18.6.3, SAE J933 | 100 | 90087A143 | 00000 | ||
| 1/4" | 0.27" | 0.097" | F | No. 2 | 32 | 31 Ga. | Round | ASME B18.6.3, SAE J933 | 100 | 90087A144 | 00000 | ||
| 5/16" | 0.27" | 0.097" | F | No. 2 | 32 | 31 Ga. | Round | ASME B18.6.3, SAE J933 | 100 | 90087A145 | 00000 | ||
| 3/8" | 0.27" | 0.097" | F | No. 2 | 32 | 31 Ga. | Round | ASME B18.6.3, SAE J933 | 100 | 90087A146 | 00000 | ||
| 7/16" | 0.27" | 0.097" | F | No. 2 | 32 | 31 Ga. | Round | ASME B18.6.3, SAE J933 | 100 | 90087A851 | 00000 | ||
| 1/2" | 0.27" | 0.097" | F | No. 2 | 32 | 31 Ga. | Round | ASME B18.6.3, SAE J933 | 100 | 90087A148 | 00000 | ||
| 5/8" | 0.27" | 0.097" | F | No. 2 | 32 | 31 Ga. | Round | ASME B18.6.3, SAE J933 | 100 | 90087A150 | 00000 | ||
| 3/4" | 0.27" | 0.097" | F | No. 2 | 32 | 31 Ga. | Round | ASME B18.6.3, SAE J933 | 100 | 90087A151 | 00000 | ||
| 7/8" | 0.27" | 0.097" | F | No. 2 | 32 | 31 Ga. | Round | ASME B18.6.3, SAE J933 | 100 | 90087A852 | 00000 | ||
| 1" | 0.27" | 0.097" | F | No. 2 | 32 | 31 Ga. | Round | ASME B18.6.3, SAE J933 | 100 | 90087A153 | 00000 | ||
| 1 1/4" | 0.27" | 0.097" | F | No. 2 | 32 | 31 Ga. | Round | ASME B18.6.3, SAE J933 | 50 | 90087A853 | 00000 | ||
| 2" | 0.27" | 0.097" | F | No. 2 | 32 | 31 Ga. | Round | ASME B18.6.3, SAE J933 | 25 | 90087A855 | 00000 | ||
No. 8 Screw Size | |||||||||||||
| 1/4" | 0.322" | 0.115" | F | No. 2 | 32 | 26 Ga. | Round | ASME B18.6.3, SAE J933 | 100 | 90087A190 | 00000 | ||
| 5/16" | 0.322" | 0.115" | F | No. 2 | 32 | 26 Ga. | Round | ASME B18.6.3, SAE J933 | 100 | 90087A191 | 00000 | ||
| 3/8" | 0.322" | 0.115" | F | No. 2 | 32 | 26 Ga. | Round | ASME B18.6.3, SAE J933 | 100 | 90087A192 | 00000 | ||
| 1/2" | 0.322" | 0.115" | F | No. 2 | 32 | 26 Ga. | Round | ASME B18.6.3, SAE J933 | 100 | 90087A194 | 00000 | ||
| 5/8" | 0.322" | 0.115" | F | No. 2 | 32 | 26 Ga. | Round | ASME B18.6.3, SAE J933 | 100 | 90087A196 | 00000 | ||
| 3/4" | 0.322" | 0.115" | F | No. 2 | 32 | 26 Ga. | Round | ASME B18.6.3, SAE J933 | 100 | 90087A197 | 00000 | ||
| 1" | 0.322" | 0.115" | F | No. 2 | 32 | 26 Ga. | Round | ASME B18.6.3, SAE J933 | 100 | 90087A199 | 00000 | ||
| 1 1/4" | 0.322" | 0.115" | F | No. 2 | 32 | 20 Ga. | Round | ASME B18.6.3, SAE J933 | 50 | 90087A856 | 00000 | ||
| 1 1/2" | 0.322" | 0.115" | F | No. 2 | 32 | 20 Ga. | Round | ASME B18.6.3, SAE J933 | 25 | 90087A857 | 0000 | ||
| 1 3/4" | 0.322" | 0.115" | F | No. 2 | 32 | 20 Ga. | Round | ASME B18.6.3, SAE J933 | 25 | 90087A858 | 0000 | ||
| 2" | 0.322" | 0.115" | F | No. 2 | 32 | 20 Ga. | Round | ASME B18.6.3, SAE J933 | 25 | 90087A859 | 00000 | ||
| 2 1/2" | 0.322" | 0.115" | F | No. 2 | 32 | 20 Ga. | Round | ASME B18.6.3, SAE J933 | 25 | 90087A861 | 00000 | ||
| 3" | 0.322" | 0.115" | F | No. 2 | 32 | 20 Ga. | Round | ASME B18.6.3, SAE J933 | 25 | 90087A862 | 00000 | ||
No. 10 Screw Size | |||||||||||||
| 1/4" | 0.373" | 0.133" | F | No. 2 | 24 | 19 Ga. | Round | ASME B18.6.3, SAE J933 | 50 | 90087A863 | 00000 | ||
| 1/4" | 0.373" | 0.133" | F | No. 2 | 32 | 11/64" | Round | ASME B18.6.3, SAE J933 | 50 | 90087A871 | 0000 | ||
| 5/16" | 0.373" | 0.133" | F | No. 2 | 24 | 19 Ga. | Round | ASME B18.6.3, SAE J933 | 100 | 90087A864 | 00000 | ||
| 5/16" | 0.373" | 0.133" | F | No. 2 | 32 | 11/64" | Round | ASME B18.6.3, SAE J933 | 100 | 90087A872 | 00000 | ||
| 3/8" | 0.373" | 0.133" | F | No. 2 | 24 | 17 Ga. | Round | ASME B18.6.3, SAE J933 | 100 | 90087A240 | 00000 | ||
| 3/8" | 0.373" | 0.133" | F | No. 2 | 32 | 17 Ga. | Round | ASME B18.6.3, SAE J933 | 100 | 90087A827 | 00000 | ||
| 1/2" | 0.373" | 0.133" | F | No. 2 | 24 | 17 Ga. | Round | ASME B18.6.3, SAE J933 | 100 | 90087A242 | 00000 | ||
| 1/2" | 0.373" | 0.133" | F | No. 2 | 32 | 17 Ga. | Round | ASME B18.6.3, SAE J933 | 100 | 90087A829 | 00000 | ||
| 5/8" | 0.373" | 0.133" | F | No. 2 | 24 | 17 Ga. | Round | ASME B18.6.3, SAE J933 | 100 | 90087A243 | 00000 | ||
| 5/8" | 0.373" | 0.133" | F | No. 2 | 32 | 17 Ga. | Round | ASME B18.6.3, SAE J933 | 100 | 90087A830 | 00000 | ||
| 3/4" | 0.373" | 0.133" | F | No. 2 | 24 | 17 Ga. | Round | ASME B18.6.3, SAE J933 | 100 | 90087A245 | 00000 | ||
| 3/4" | 0.373" | 0.133" | F | No. 2 | 32 | 17 Ga. | Round | ASME B18.6.3, SAE J933 | 100 | 90087A831 | 00000 | ||
| 7/8" | 0.373" | 0.133" | F | No. 2 | 24 | 19 Ga. | Round | ASME B18.6.3, SAE J933 | 50 | 90087A865 | 00000 | ||
| 7/8" | 0.373" | 0.133" | F | No. 2 | 32 | 11/64" | Round | ASME B18.6.3, SAE J933 | 25 | 90087A873 | 00000 | ||
| 1" | 0.373" | 0.133" | F | No. 2 | 24 | 17 Ga. | Round | ASME B18.6.3, SAE J933 | 50 | 90087A247 | 00000 | ||
| 1" | 0.373" | 0.133" | F | No. 2 | 32 | 17 Ga. | Round | ASME B18.6.3, SAE J933 | 50 | 90087A833 | 00000 | ||
| 1 1/4" | 0.373" | 0.133" | F | No. 2 | 24 | 17 Ga. | Round | ASME B18.6.3, SAE J933 | 50 | 90087A249 | 00000 | ||
| 1 1/4" | 0.373" | 0.133" | F | No. 2 | 32 | 17 Ga. | Round | ASME B18.6.3, SAE J933 | 50 | 90087A835 | 00000 | ||
| 1 1/2" | 0.373" | 0.133" | F | No. 2 | 24 | 17 Ga. | Round | ASME B18.6.3, SAE J933 | 50 | 90087A250 | 00000 | ||
| 1 1/2" | 0.373" | 0.133" | F | No. 2 | 32 | 17 Ga. | Round | ASME B18.6.3, SAE J933 | 50 | 90087A836 | 00000 | ||
| 1 3/4" | 0.373" | 0.133" | F | No. 2 | 24 | 19 Ga. | Round | ASME B18.6.3, SAE J933 | 25 | 90087A866 | 0000 | ||
| 2" | 0.373" | 0.133" | F | No. 2 | 24 | 19 Ga. | Round | ASME B18.6.3, SAE J933 | 25 | 90087A867 | 00000 | ||
| 2" | 0.373" | 0.133" | F | No. 2 | 32 | 11/64" | Round | ASME B18.6.3, SAE J933 | 25 | 90087A875 | 00000 | ||
| 3" | 0.373" | 0.133" | F | No. 2 | 32 | 11/64" | Round | ASME B18.6.3, SAE J933 | 10 | 90087A877 | 00000 | ||
No. 12 Screw Size | |||||||||||||
| 1/4" | 0.425" | 0.151" | F | No. 3 | 24 | 11 Ga. | Round | ASME B18.6.3, SAE J933 | 10 | 90087A878 | 00000 | ||
| 3/8" | 0.425" | 0.151" | F | No. 3 | 24 | 11 Ga. | Round | ASME B18.6.3, SAE J933 | 50 | 90087A879 | 00000 | ||
| 1/2" | 0.425" | 0.151" | F | No. 3 | 24 | 8 Ga. | Round | ASME B18.6.3, SAE J933 | 50 | 90087A703 | 00000 | ||
| 5/8" | 0.425" | 0.151" | F | No. 3 | 24 | 11 Ga. | Round | ASME B18.6.3, SAE J933 | 50 | 90087A881 | 00000 | ||
| 3/4" | 0.425" | 0.151" | F | No. 3 | 24 | 8 Ga. | Round | ASME B18.6.3, SAE J933 | 50 | 90087A707 | 00000 | ||
| 1" | 0.425" | 0.151" | F | No. 3 | 24 | 11 Ga. | Round | ASME B18.6.3, SAE J933 | 25 | 90087A882 | 0000 | ||
| 1 1/4" | 0.425" | 0.151" | F | No. 3 | 24 | 11 Ga. | Round | ASME B18.6.3, SAE J933 | 25 | 90087A883 | 00000 | ||
| 2" | 0.425" | 0.151" | F | No. 3 | 24 | 11 Ga. | Round | ASME B18.6.3, SAE J933 | 10 | 90087A885 | 00000 | ||
1/4" Screw Size | |||||||||||||
| 3/8" | 0.492" | 0.175" | F | No. 3 | 20 | 2 Ga. | Round | ASME B18.6.3, SAE J933 | 25 | 90087A886 | 0000 | ||
| 1/2" | 0.492" | 0.175" | F | No. 3 | 20 | 1 Ga. | Round | ASME B18.6.3, SAE J933 | 25 | 90087A537 | 00000 | ||
| 5/8" | 0.492" | 0.175" | F | No. 3 | 20 | 1 Ga. | Round | ASME B18.6.3, SAE J933 | 25 | 90087A538 | 00000 | ||
| 3/4" | 0.492" | 0.175" | F | No. 3 | 20 | 1 Ga. | Round | ASME B18.6.3, SAE J933 | 25 | 90087A540 | 00000 | ||
| 1" | 0.492" | 0.175" | F | No. 3 | 20 | 1 Ga. | Round | ASME B18.6.3, SAE J933 | 25 | 90087A542 | 00000 | ||
| 1 1/4" | 0.492" | 0.175" | F | No. 3 | 20 | 1 Ga. | Round | ASME B18.6.3, SAE J933 | 25 | 90087A544 | 00000 | ||
| 1 1/2" | 0.492" | 0.175" | F | No. 3 | 20 | 1 Ga. | Round | ASME B18.6.3, SAE J933 | 25 | 90087A546 | 00000 | ||
| 2" | 0.492" | 0.175" | F | No. 3 | 20 | 1 Ga. | Round | ASME B18.6.3, SAE J933 | 25 | 90087A548 | 00000 | ||
| 2.5" | 0.492" | 0.175" | F | No. 3 | 20 | 2 Ga. | Round | ASME B18.6.3, SAE J933 | 10 | 90087A953 | 00000 | ||
| 3" | 0.492" | 0.175" | F | No. 3 | 20 | 2 Ga. | Round | ASME B18.6.3, SAE J933 | 10 | 90087A889 | 00000 | ||
| 3 1/2" | 0.492" | 0.175" | F | No. 3 | 20 | 2 Ga. | Round | ASME B18.6.3, SAE J933 | 5 | 90087A891 | 00000 | ||
| 4" | 0.492" | 0.175" | F | No. 3 | 20 | 2 Ga. | Round | ASME B18.6.3, SAE J933 | 5 | 90087A892 | 00000 | ||
5/16" Screw Size | |||||||||||||
| 1/2" | 0.615" | 0.218" | F | No. 4 | 18 | K | Round | ASME B18.6.3, SAE J933 | 5 | 90087A893 | 0000 | ||
| 3/4" | 0.615" | 0.218" | F | No. 4 | 18 | K | Round | ASME B18.6.3, SAE J933 | 10 | 90087A894 | 00000 | ||
| 1" | 0.615" | 0.218" | F | No. 4 | 18 | K | Round | ASME B18.6.3, SAE J933 | 10 | 90087A895 | 00000 | ||
| 1 1/4" | 0.615" | 0.218" | F | No. 4 | 18 | K | Round | ASME B18.6.3, SAE J933 | 10 | 90087A896 | 00000 | ||
| 2" | 0.615" | 0.218" | F | No. 4 | 18 | K | Round | ASME B18.6.3, SAE J933 | 5 | 90087A898 | 00000 | ||
3/8" Screw Size | |||||||||||||
| 1/2" | 0.74" | 0.261" | F | No. 4 | 16 | R | Round | ASME B18.6.3, SAE J933 | 1 | 90087A902 | 0000 | ||
| 3/4" | 0.74" | 0.261" | F | No. 4 | 16 | R | Round | ASME B18.6.3, SAE J933 | 1 | 90087A903 | 0000 | ||
| 1" | 0.74" | 0.261" | F | No. 4 | 16 | R | Round | ASME B18.6.3, SAE J933 | 1 | 90087A904 | 0000 | ||
Black-Zinc-Plated Steel | |||||||||||||
No. 4 Screw Size | |||||||||||||
| 1/4" | 0.219" | 0.08" | F | No. 1 | 40 | 41 Ga. | Round | ASME B18.6.3, SAE J933 | 50 | 91715A101 | 00000 | ||
| 3/8" | 0.219" | 0.08" | F | No. 1 | 40 | 41 Ga. | Round | ASME B18.6.3, SAE J933 | 50 | 91715A103 | 0000 | ||
No. 6 Screw Size | |||||||||||||
| 3/8" | 0.27" | 0.097" | F | No. 2 | 32 | 31 Ga. | Round | ASME B18.6.3, SAE J933 | 50 | 91715A114 | 00000 | ||
| 1/2" | 0.27" | 0.097" | F | No. 2 | 32 | 31 Ga. | Round | ASME B18.6.3, SAE J933 | 50 | 91715A116 | 00000 | ||
| 3/4" | 0.27" | 0.097" | F | No. 2 | 32 | 31 Ga. | Round | ASME B18.6.3, SAE J933 | 50 | 91715A118 | 00000 | ||
No. 8 Screw Size | |||||||||||||
| 3/8" | 0.322" | 0.115" | F | No. 2 | 32 | 26 Ga. | Round | ASME B18.6.3, SAE J933 | 50 | 91715A122 | 00000 | ||
| 1/2" | 0.322" | 0.115" | F | No. 2 | 32 | 26 Ga. | Round | ASME B18.6.3, SAE J933 | 50 | 91715A124 | 00000 | ||
| 3/4" | 0.322" | 0.115" | F | No. 2 | 32 | 26 Ga. | Round | ASME B18.6.3, SAE J933 | 50 | 91715A126 | 00000 | ||
| 1" | 0.322" | 0.115" | F | No. 2 | 32 | 26 Ga. | Round | ASME B18.6.3, SAE J933 | 50 | 91715A128 | 00000 | ||
No. 10 Screw Size | |||||||||||||
| 3/8" | 0.373" | 0.133" | F | No. 2 | 24 | 17 Ga. | Round | ASME B18.6.3, SAE J933 | 50 | 91715A132 | 00000 | ||
| 3/8" | 0.373" | 0.133" | F | No. 2 | 32 | 17 Ga. | Round | ASME B18.6.3, SAE J933 | 50 | 91715A142 | 00000 | ||
| 1/2" | 0.373" | 0.133" | F | No. 2 | 24 | 17 Ga. | Round | ASME B18.6.3, SAE J933 | 50 | 91715A134 | 00000 | ||
| 1/2" | 0.373" | 0.133" | F | No. 2 | 32 | 17 Ga. | Round | ASME B18.6.3, SAE J933 | 50 | 91715A144 | 00000 | ||
| 3/4" | 0.373" | 0.133" | F | No. 2 | 24 | 17 Ga. | Round | ASME B18.6.3, SAE J933 | 50 | 91715A136 | 00000 | ||
| 3/4" | 0.373" | 0.133" | F | No. 2 | 32 | 17 Ga. | Round | ASME B18.6.3, SAE J933 | 50 | 91715A146 | 00000 | ||
| 1" | 0.373" | 0.133" | F | No. 2 | 32 | 17 Ga. | Round | ASME B18.6.3, SAE J933 | 25 | 91715A148 | 00000 | ||
No. 12 Screw Size | |||||||||||||
| 1/2" | 0.425" | 0.151" | F | No. 3 | 24 | 8 Ga. | Round | ASME B18.6.3, SAE J933 | 25 | 91715A152 | 00000 | ||
| 3/4" | 0.425" | 0.151" | F | No. 3 | 24 | 8 Ga. | Round | ASME B18.6.3, SAE J933 | 25 | 91715A154 | 00000 | ||
1/4" Screw Size | |||||||||||||
| 1/2" | 0.492" | 0.175" | F | No. 3 | 20 | 1 Ga. | Round | ASME B18.6.3, SAE J933 | 25 | 91715A162 | 00000 | ||
| 3/4" | 0.492" | 0.175" | F | No. 3 | 20 | 1 Ga. | Round | ASME B18.6.3, SAE J933 | 25 | 91715A164 | 00000 | ||
| 1" | 0.492" | 0.175" | F | No. 3 | 20 | 1 Ga. | Round | ASME B18.6.3, SAE J933 | 25 | 91715A166 | 00000 | ||
| 1 1/2" | 0.492" | 0.175" | F | No. 3 | 20 | 1 Ga. | Round | ASME B18.6.3, SAE J933 | 25 | 91715A168 | 00000 | ||
| 2" | 0.492" | 0.175" | F | No. 3 | 20 | 1 Ga. | Round | ASME B18.6.3, SAE J933 | 10 | 91715A172 | 0000 | ||
Stainless Steel Phillips Rounded Head Thread-Cutting Screws for Plastic
 |
 |
Round Shank Cross Section |
Often used in glass-filled nylon and other tough thermoplastics, these screws create threads where thread-forming screws can’t. They cut away material as they drive to fasten without deforming the hole and have coarse threads for a sure grip. The Phillips drive handles enough torque to keep drivers from slipping and the rounded head creates a finished look. Also known as Type BT and Type 25 screws.
Length is measured from under the head.
410 Stainless Steel—Tougher and more wear resistant than other stainless steel screws but less corrosion resistant.
Round—The sharply angled threads drive into plastic with less force and a lower risk of cracking than other tapping screws. The base of the threads is recessed to bite deep into material and hold tight. You can reuse these screws a few times without stripping the threads. They're comparable to PT screws.
Head | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Lg. | Dia. | Ht. | Tapping Screw Type | Drive Size | Approx. Threads per In. | Drill Bit Size | Shank Cross Section | Pkg. Qty. | Pkg. | |||
410 Stainless Steel | ||||||||||||
No. 2 Screw Size | ||||||||||||
| 1/4" | 0.167" | 0.062" | 25/BT | No. 1 | 32 | 49 Ga. | Round | 100 | 94629A110 | 00000 | ||
| 5/16" | 0.167" | 0.062" | 25/BT | No. 1 | 32 | 49 Ga. | Round | 100 | 94629A120 | 00000 | ||
| 3/8" | 0.167" | 0.062" | 25/BT | No. 1 | 32 | 49 Ga. | Round | 100 | 94629A130 | 00000 | ||
| 1/2" | 0.167" | 0.062" | 25/BT | No. 1 | 32 | 49 Ga. | Round | 100 | 94629A140 | 00000 | ||
No. 4 Screw Size | ||||||||||||
| 1/4" | 0.219" | 0.08" | 25/BT | No. 1 | 24 | 41 Ga. | Round | 100 | 94629A150 | 0000 | ||
| 5/16" | 0.219" | 0.08" | 25/BT | No. 1 | 24 | 41 Ga. | Round | 100 | 94629A160 | 0000 | ||
| 3/8" | 0.219" | 0.08" | 25/BT | No. 1 | 24 | 41 Ga. | Round | 100 | 94629A550 | 0000 | ||
| 1/2" | 0.219" | 0.08" | 25/BT | No. 1 | 24 | 41 Ga. | Round | 100 | 94629A560 | 0000 | ||
| 3/4" | 0.219" | 0.08" | 25/BT | No. 1 | 24 | 41 Ga. | Round | 100 | 94629A170 | 0000 | ||
No. 6 Screw Size | ||||||||||||
| 1/4" | 0.27" | 0.097" | 25/BT | No. 2 | 20 | 31 Ga. | Round | 100 | 94629A180 | 0000 | ||
| 5/16" | 0.27" | 0.097" | 25/BT | No. 2 | 20 | 31 Ga. | Round | 100 | 94629A190 | 0000 | ||
| 3/8" | 0.27" | 0.097" | 25/BT | No. 2 | 20 | 31 Ga. | Round | 100 | 94629A670 | 0000 | ||
| 1/2" | 0.27" | 0.097" | 25/BT | No. 2 | 20 | 31 Ga. | Round | 100 | 94629A680 | 0000 | ||
| 5/8" | 0.27" | 0.097" | 25/BT | No. 2 | 20 | 31 Ga. | Round | 100 | 94629A210 | 00000 | ||
| 3/4" | 0.27" | 0.097" | 25/BT | No. 2 | 20 | 31 Ga. | Round | 100 | 94629A690 | 00000 | ||
| 1" | 0.27" | 0.097" | 25/BT | No. 2 | 20 | 31 Ga. | Round | 100 | 94629A220 | 00000 | ||
No. 8 Screw Size | ||||||||||||
| 3/8" | 0.322" | 0.115" | 25/BT | No. 2 | 18 | 26 Ga. | Round | 100 | 94629A710 | 00000 | ||
| 1/2" | 0.322" | 0.115" | 25/BT | No. 2 | 18 | 26 Ga. | Round | 100 | 94629A720 | 00000 | ||
| 5/8" | 0.322" | 0.115" | 25/BT | No. 2 | 18 | 26 Ga. | Round | 100 | 94629A230 | 00000 | ||
| 3/4" | 0.322" | 0.115" | 25/BT | No. 2 | 18 | 26 Ga. | Round | 100 | 94629A730 | 00000 | ||
| 1" | 0.322" | 0.115" | 25/BT | No. 2 | 18 | 26 Ga. | Round | 100 | 94629A240 | 00000 | ||
| 1 1/4" | 0.322" | 0.115" | 25/BT | No. 2 | 18 | 26 Ga. | Round | 100 | 94629A250 | 00000 | ||
| 1 1/2" | 0.322" | 0.115" | 25/BT | No. 2 | 18 | 26 Ga. | Round | 100 | 94629A260 | 00000 | ||
No. 10 Screw Size | ||||||||||||
| 3/8" | 0.373" | 0.133" | 25/BT | No. 2 | 16 | 17 Ga. | Round | 100 | 94629A270 | 00000 | ||
| 1/2" | 0.373" | 0.133" | 25/BT | No. 2 | 16 | 17 Ga. | Round | 100 | 94629A280 | 00000 | ||
| 5/8" | 0.373" | 0.133" | 25/BT | No. 2 | 16 | 17 Ga. | Round | 100 | 94629A290 | 00000 | ||
| 3/4" | 0.373" | 0.133" | 25/BT | No. 2 | 16 | 17 Ga. | Round | 100 | 94629A310 | 00000 | ||
| 1" | 0.373" | 0.133" | 25/BT | No. 2 | 16 | 17 Ga. | Round | 100 | 94629A320 | 00000 | ||
| 1 1/4" | 0.373" | 0.133" | 25/BT | No. 2 | 16 | 17 Ga. | Round | 50 | 94629A330 | 00000 | ||
| 1 1/2" | 0.373" | 0.133" | 25/BT | No. 2 | 16 | 17 Ga. | Round | 50 | 94629A340 | 00000 | ||
Stainless Steel Phillips Rounded Head Thread-Cutting Screws
 |
Drive these corrosion-resistant screws into drilled holes and they cut their own threads. Because they remove material, they take less effort to install and put less stress on your workpiece than thread-forming screws. The Phillips drive handles enough torque to keep drivers from slipping and the rounded head creates a finished look.
Length is measured from under the head.
410 Stainless Steel—Tougher and more wear resistant than other stainless steel screws but less corrosion resistant.
Head | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Lg. | Dia. | Ht. | Tapping Screw Type | Drive Size | Approx. Threads per In. | Drill Bit Size, mm | Shank Cross Section | Pkg. Qty. | Pkg. | |||
410 Stainless Steel | ||||||||||||
No. 4 Screw Size | ||||||||||||
| 1/4" | 0.219" | 0.08" | F | No. 1 | 40 | 2.2 | Round | 100 | 90410A106 | 00000 | ||
| 3/8" | 0.219" | 0.08" | F | No. 1 | 40 | 2.2 | Round | 100 | 90410A107 | 0000 | ||
| 1/2" | 0.219" | 0.08" | F | No. 1 | 40 | 2.2 | Round | 100 | 90410A108 | 0000 | ||
No. 6 Screw Size | ||||||||||||
| 1/4" | 0.27" | 0.097" | F | No. 2 | 32 | 36 Ga. | Round | 100 | 90410A144 | 0000 | ||
| 3/8" | 0.27" | 0.097" | F | No. 2 | 32 | 36 Ga. | Round | 100 | 90410A146 | 0000 | ||
| 1/2" | 0.27" | 0.097" | F | No. 2 | 32 | 36 Ga. | Round | 100 | 90410A148 | 0000 | ||
| 5/8" | 0.27" | 0.097" | F | No. 2 | 32 | 36 Ga. | Round | 100 | 90410A149 | 0000 | ||
| 3/4" | 0.27" | 0.097" | F | No. 2 | 32 | 36 Ga. | Round | 100 | 90410A151 | 0000 | ||
No. 8 Screw Size | ||||||||||||
| 1/4" | 0.322" | 0.115" | F | No. 2 | 32 | 29 Ga. | Round | 100 | 90410A190 | 00000 | ||
| 3/8" | 0.322" | 0.115" | F | No. 2 | 32 | 29 Ga. | Round | 100 | 90410A192 | 00000 | ||
| 1/2" | 0.322" | 0.115" | F | No. 2 | 32 | 29 Ga. | Round | 100 | 90410A194 | 00000 | ||
| 5/8" | 0.322" | 0.115" | F | No. 2 | 32 | 29 Ga. | Round | 100 | 90410A195 | 00000 | ||
| 3/4" | 0.322" | 0.115" | F | No. 2 | 32 | 29 Ga. | Round | 100 | 90410A197 | 00000 | ||
| 1" | 0.322" | 0.115" | F | No. 2 | 32 | 29 Ga. | Round | 100 | 90410A199 | 00000 | ||
No. 10 Screw Size | ||||||||||||
| 3/8" | 0.373" | 0.133" | F | No. 2 | 24 | 25 Ga. | Round | 100 | 90410A240 | 00000 | ||
| 3/8" | 0.373" | 0.133" | F | No. 2 | 32 | 21 Ga. | Round | 100 | 90410A827 | 00000 | ||
| 1/2" | 0.373" | 0.133" | F | No. 2 | 24 | 25 Ga. | Round | 100 | 90410A242 | 00000 | ||
| 1/2" | 0.373" | 0.133" | F | No. 2 | 32 | 21 Ga. | Round | 100 | 90410A829 | 00000 | ||
| 5/8" | 0.373" | 0.133" | F | No. 2 | 24 | 25 Ga. | Round | 100 | 90410A243 | 00000 | ||
| 5/8" | 0.373" | 0.133" | F | No. 2 | 32 | 21 Ga. | Round | 100 | 90410A830 | 00000 | ||
| 3/4" | 0.373" | 0.133" | F | No. 2 | 24 | 25 Ga. | Round | 100 | 90410A245 | 00000 | ||
| 3/4" | 0.373" | 0.133" | F | No. 2 | 32 | 21 Ga. | Round | 100 | 90410A831 | 00000 | ||
| 1" | 0.373" | 0.133" | F | No. 2 | 24 | 25 Ga. | Round | 100 | 90410A247 | 00000 | ||
| 1" | 0.373" | 0.133" | F | No. 2 | 32 | 21 Ga. | Round | 100 | 90410A833 | 00000 | ||
| 1 1/2" | 0.373" | 0.133" | F | No. 2 | 24 | 25 Ga. | Round | 25 | 90410A109 | 0000 | ||
No. 12 Screw Size | ||||||||||||
| 3/8" | 0.425" | 0.151" | F | No. 3 | 24 | 18 Ga. | Round | 50 | 90410A111 | 0000 | ||
| 1/2" | 0.425" | 0.151" | F | No. 3 | 24 | 18 Ga. | Round | 50 | 90410A112 | 00000 | ||
1/4" Screw Size | ||||||||||||
| 1/2" | 0.492" | 0.175" | F | No. 3 | 20 | 7 Ga. | Round | 50 | 90410A320 | 00000 | ||
| 3/4" | 0.492" | 0.175" | F | No. 3 | 20 | 7 Ga. | Round | 50 | 90410A323 | 00000 | ||
| 1" | 0.492" | 0.175" | F | No. 3 | 20 | 7 Ga. | Round | 50 | 90410A326 | 00000 | ||
| 1 1/4" | 0.492" | 0.175" | F | No. 3 | 20 | 7 Ga. | Round | 25 | 90410A113 | 0000 | ||
| 1 1/2" | 0.492" | 0.175" | F | No. 3 | 20 | 7 Ga. | Round | 10 | 90410A114 | 0000 | ||
5/16" Screw Size | ||||||||||||
| 3/4" | 0.615" | 0.218" | F | No. 4 | 18 | F | Round | 10 | 90410A115 | 0000 | ||
| 1" | 0.615" | 0.218" | F | No. 4 | 18 | F | Round | 10 | 90410A116 | 0000 | ||
Stainless Steel Phillips Rounded Head Thread-Cutting Screws for Soft Metal
 |
A wide slot at the tip cuts threads and clears chips, reducing the effort to drive these screws. They create threads in drilled holes in soft metals, such as brass, and resist rust in damp environments. The Phillips drive handles enough torque to keep drivers from slipping and the rounded head creates a finished look.
Length is measured from under the head.
410 Stainless Steel—Tougher and more wear resistant than other stainless steel screws but less corrosion resistant.
Head | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Lg. | Dia. | Ht. | Tapping Screw Type | Drive Size | Approx. Threads per In. | Drill Bit Size | Shank Cross Section | Pkg. Qty. | Pkg. | |||
410 Stainless Steel | ||||||||||||
No. 4 Screw Size | ||||||||||||
| 1/4" | 0.219" | 0.08" | 23/T | No. 1 | 40 | 41 Ga. | Round | 100 | 98273A110 | 00000 | ||
| 3/8" | 0.219" | 0.08" | 23/T | No. 1 | 40 | 41 Ga. | Round | 100 | 98273A115 | 0000 | ||
| 1/2" | 0.219" | 0.08" | 23/T | No. 1 | 40 | 41 Ga. | Round | 100 | 98273A120 | 0000 | ||
No. 6 Screw Size | ||||||||||||
| 1/4" | 0.27" | 0.097" | 23/T | No. 2 | 32 | 31 Ga. | Round | 100 | 98273A155 | 0000 | ||
| 3/8" | 0.27" | 0.097" | 23/T | No. 2 | 32 | 31 Ga. | Round | 100 | 98273A160 | 0000 | ||
| 1/2" | 0.27" | 0.097" | 23/T | No. 2 | 32 | 31 Ga. | Round | 100 | 98273A165 | 0000 | ||
No. 8 Screw Size | ||||||||||||
| 1/4" | 0.322" | 0.115" | 23/T | No. 2 | 32 | 26 Ga. | Round | 100 | 98273A215 | 0000 | ||
| 3/8" | 0.322" | 0.115" | 23/T | No. 2 | 32 | 26 Ga. | Round | 100 | 98273A220 | 00000 | ||
| 1/2" | 0.322" | 0.115" | 23/T | No. 2 | 32 | 26 Ga. | Round | 100 | 98273A225 | 00000 | ||
No. 10 Screw Size | ||||||||||||
| 3/8" | 0.373" | 0.133" | 23/T | No. 2 | 24 | 17 Ga. | Round | 100 | 98273A250 | 00000 | ||
| 3/8" | 0.373" | 0.133" | 23/T | No. 2 | 32 | 17 Ga. | Round | 100 | 98273A310 | 00000 | ||
| 1/2" | 0.373" | 0.133" | 23/T | No. 2 | 24 | 17 Ga. | Round | 50 | 98273A255 | 0000 | ||
| 1/2" | 0.373" | 0.133" | 23/T | No. 2 | 32 | 17 Ga. | Round | 50 | 98273A315 | 0000 | ||
| 3/4" | 0.373" | 0.133" | 23/T | No. 2 | 24 | 17 Ga. | Round | 50 | 98273A260 | 00000 | ||
| 3/4" | 0.373" | 0.133" | 23/T | No. 2 | 32 | 17 Ga. | Round | 50 | 98273A320 | 00000 | ||
1/4" Screw Size | ||||||||||||
| 1/2" | 0.492" | 0.175" | 23/T | No. 3 | 20 | 1 Ga. | Round | 50 | 98273A355 | 00000 | ||
| 3/4" | 0.492" | 0.175" | 23/T | No. 3 | 20 | 1 Ga. | Round | 25 | 98273A360 | 00000 | ||
| 1" | 0.492" | 0.175" | 23/T | No. 3 | 20 | 1 Ga. | Round | 25 | 98273A365 | 00000 | ||
