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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
 |
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.
Black-Zinc-Plated Steel—The dark finish withstands occasional exposure to moisture while creating a finished look.
Head | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Lg. | Dia. | Ht. | Tapping Screw Type Designation | Drive Size | Approx. Threads per In. | Drill Bit Size | Shank Cross Section | Pkg. Qty. | Pkg. | |||
Black-Zinc-Plated Steel | ||||||||||||
No. 4 Screw Size | ||||||||||||
| 1/4" | 0.219" | 0.08" | F | No. 1 | 40 | 41 Ga. | Round | 50 | 91715A101 | 000000 | ||
| 3/8" | 0.219" | 0.08" | F | No. 1 | 40 | 41 Ga. | Round | 50 | 91715A103 | 0000 | ||
No. 6 Screw Size | ||||||||||||
| 3/8" | 0.27" | 0.097" | F | No. 2 | 32 | 31 Ga. | Round | 50 | 91715A114 | 00000 | ||
| 1/2" | 0.27" | 0.097" | F | No. 2 | 32 | 31 Ga. | Round | 50 | 91715A116 | 00000 | ||
| 3/4" | 0.27" | 0.097" | F | No. 2 | 32 | 31 Ga. | Round | 50 | 91715A118 | 00000 | ||
No. 8 Screw Size | ||||||||||||
| 3/8" | 0.322" | 0.115" | F | No. 2 | 32 | 26 Ga. | Round | 50 | 91715A122 | 00000 | ||
| 1/2" | 0.322" | 0.115" | F | No. 2 | 32 | 26 Ga. | Round | 50 | 91715A124 | 00000 | ||
| 3/4" | 0.322" | 0.115" | F | No. 2 | 32 | 26 Ga. | Round | 50 | 91715A126 | 00000 | ||
| 1" | 0.322" | 0.115" | F | No. 2 | 32 | 26 Ga. | Round | 50 | 91715A128 | 00000 | ||
No. 10 Screw Size | ||||||||||||
| 3/8" | 0.373" | 0.133" | F | No. 2 | 24 | 17 Ga. | Round | 50 | 91715A132 | 00000 | ||
| 3/8" | 0.373" | 0.133" | F | No. 2 | 32 | 17 Ga. | Round | 50 | 91715A142 | 00000 | ||
| 1/2" | 0.373" | 0.133" | F | No. 2 | 24 | 17 Ga. | Round | 50 | 91715A134 | 00000 | ||
| 1/2" | 0.373" | 0.133" | F | No. 2 | 32 | 17 Ga. | Round | 50 | 91715A144 | 00000 | ||
| 3/4" | 0.373" | 0.133" | F | No. 2 | 24 | 17 Ga. | Round | 50 | 91715A136 | 00000 | ||
| 3/4" | 0.373" | 0.133" | F | No. 2 | 32 | 17 Ga. | Round | 50 | 91715A146 | 00000 | ||
| 1" | 0.373" | 0.133" | F | No. 2 | 32 | 17 Ga. | Round | 25 | 91715A148 | 00000 | ||
No. 12 Screw Size | ||||||||||||
| 1/2" | 0.425" | 0.151" | F | No. 3 | 24 | 8 Ga. | Round | 25 | 91715A152 | 00000 | ||
| 3/4" | 0.425" | 0.151" | F | No. 3 | 24 | 8 Ga. | Round | 25 | 91715A154 | 00000 | ||
1/4" Screw Size | ||||||||||||
| 1/2" | 0.492" | 0.175" | F | No. 3 | 20 | 1 Ga. | Round | 25 | 91715A162 | 00000 | ||
| 3/4" | 0.492" | 0.175" | F | No. 3 | 20 | 1 Ga. | Round | 25 | 91715A164 | 00000 | ||
| 1" | 0.492" | 0.175" | F | No. 3 | 20 | 1 Ga. | Round | 25 | 91715A166 | 00000 | ||
| 1 1/2" | 0.492" | 0.175" | F | No. 3 | 20 | 1 Ga. | Round | 25 | 91715A168 | 00000 | ||
| 2" | 0.492" | 0.175" | F | No. 3 | 20 | 1 Ga. | Round | 10 | 91715A172 | 0000 | ||
Steel Flanged Hex Head Drilling Screws
 |  |
Save time and effort with screws that drill and fasten in one step. The hex head gives you a firm, high-torque grip with a nutdriver or socket. Screws have a flange under the head that spreads the load to prevent crushing thin metal.
Length is measured from under the flange. Head height includes the flange.
Black-Zinc-Plated Steel—The dark finish withstands occasional exposure to moisture while creating a finished look.
Drill Tip | Head | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Lg. | Point Size | Lg. | Wd. | Ht. | Flange Dia. | Max. Drilling Thk. | Tapping Screw Type Designation | Approx. Threads per In. | Pkg. Qty. | Pkg. | |||
Black-Zinc-Plated Steel | |||||||||||||
No. 8 Screw Size | |||||||||||||
| 1/2" | No. 2 | 3/16" | 0.25" | 0.141" | 0.348" | 0.098" | BSD | 18 | 50 | 90064A778 | 00000 | ||
| 3/4" | No. 2 | 3/16" | 0.25" | 0.141" | 0.348" | 0.098" | BSD | 18 | 50 | 90064A779 | 0000 | ||
| 1" | No. 2 | 3/16" | 0.25" | 0.141" | 0.348" | 0.098" | BSD | 18 | 50 | 90064A781 | 00000 | ||
| 1 1/4" | No. 2 | 3/16" | 0.25" | 0.141" | 0.348" | 0.098" | BSD | 18 | 25 | 90064A782 | 0000 | ||
| 1 1/2" | No. 2 | 3/16" | 0.25" | 0.141" | 0.348" | 0.098" | BSD | 18 | 25 | 90064A783 | 0000 | ||
No. 10 Screw Size | |||||||||||||
| 1/2" | No. 2 | 13/64" | 0.313" | 0.151" | 0.414" | 0.110" | BSD | 16 | 50 | 90064A784 | 00000 | ||
| 3/4" | No. 3 | 1/4" | 0.313" | 0.151" | 0.414" | 0.175" | BSD | 16 | 50 | 90064A785 | 00000 | ||
| 1" | No. 3 | 1/4" | 0.313" | 0.151" | 0.414" | 0.175" | BSD | 16 | 50 | 90064A786 | 00000 | ||
| 1 1/4" | No. 3 | 1/4" | 0.313" | 0.151" | 0.414" | 0.175" | BSD | 16 | 25 | 90064A787 | 0000 | ||
| 1 1/2" | No. 3 | 1/4" | 0.313" | 0.151" | 0.414" | 0.175" | BSD | 16 | 25 | 90064A788 | 00000 | ||
No. 12 Screw Size | |||||||||||||
| 5/8" | No. 3 | 9/32" | 0.313" | 0.194" | 0.432" | 0.210" | BSD | 14 | 25 | 90064A789 | 0000 | ||
| 3/4" | No. 3 | 9/32" | 0.313" | 0.194" | 0.432" | 0.210" | BSD | 14 | 25 | 90064A791 | 0000 | ||
| 1" | No. 3 | 9/32" | 0.313" | 0.194" | 0.432" | 0.210" | BSD | 14 | 25 | 90064A792 | 0000 | ||
| 1 1/2" | No. 3 | 9/32" | 0.313" | 0.194" | 0.432" | 0.210" | BSD | 14 | 10 | 90064A793 | 0000 | ||
1/4" Screw Size | |||||||||||||
| 3/4" | No. 3 | 5/16" | 0.375" | 0.24" | 0.520" | 0.220" | BSD | 14 | 25 | 90064A794 | 00000 | ||
| 1" | No. 3 | 5/16" | 0.375" | 0.24" | 0.520" | 0.220" | BSD | 14 | 10 | 90064A795 | 0000 | ||
| 1 1/4" | No. 3 | 5/16" | 0.375" | 0.24" | 0.520" | 0.220" | BSD | 14 | 10 | 90064A796 | 0000 | ||
| 1 1/2" | No. 3 | 5/16" | 0.375" | 0.24" | 0.520" | 0.220" | BSD | 14 | 10 | 90064A797 | 0000 | ||
| 2" | No. 3 | 5/16" | 0.375" | 0.24" | 0.520" | 0.220" | BSD | 14 | 10 | 90064A799 | 0000 | ||
5/16" Screw Size | |||||||||||||
| 3/4" | No. 3 | 25/64" | 0.5" | 0.29" | 0.676" | 0.220" | BSD | 12 | 10 | 90064A801 | 00000 | ||
| 1" | No. 3 | 25/64" | 0.5" | 0.29" | 0.676" | 0.220" | BSD | 12 | 5 | 90064A802 | 0000 | ||
| 1 1/4" | No. 3 | 25/64" | 0.5" | 0.29" | 0.676" | 0.220" | BSD | 12 | 5 | 90064A803 | 0000 | ||
| 1 1/2" | No. 3 | 25/64" | 0.5" | 0.29" | 0.676" | 0.220" | BSD | 12 | 5 | 90064A804 | 0000 | ||
Steel Hex Head Wood Screws
 |
Lg. | Head Ht. | Approx. Threads per In. | Threading | Tapping Method | Pkg. Qty. | Pkg. | |||
|---|---|---|---|---|---|---|---|---|---|
Black-Zinc-Plated Steel | |||||||||
1/4" | |||||||||
| 1" | 0.172" | 10 | Partially Threaded | Thread Forming | 100 | 92371A412 | 000000 | ||
| 1 1/2" | 0.172" | 10 | Partially Threaded | Thread Forming | 50 | 92371A416 | 00000 | ||
| 2" | 0.172" | 10 | Partially Threaded | Thread Forming | 50 | 92371A420 | 00000 | ||
| 2 1/2" | 0.172" | 10 | Partially Threaded | Thread Forming | 50 | 92371A424 | 00000 | ||
| 3" | 0.172" | 10 | Partially Threaded | Thread Forming | 50 | 92371A428 | 00000 | ||
5/16" | |||||||||
| 1 1/2" | 0.219" | 9 | Partially Threaded | Thread Forming | 50 | 92371A521 | 00000 | ||
| 2" | 0.219" | 9 | Partially Threaded | Thread Forming | 50 | 92371A525 | 00000 | ||
| 2 1/2" | 0.219" | 9 | Partially Threaded | Thread Forming | 50 | 92371A529 | 00000 | ||
| 3" | 0.219" | 9 | Partially Threaded | Thread Forming | 25 | 92371A533 | 00000 | ||
3/8" | |||||||||
| 1 1/2" | 0.25" | 7 | Partially Threaded | Thread Forming | 25 | 92371A571 | 00000 | ||
| 2" | 0.25" | 7 | Partially Threaded | Thread Forming | 25 | 92371A574 | 00000 | ||
| 2 1/2" | 0.25" | 7 | Partially Threaded | Thread Forming | 10 | 92371A578 | 0000 | ||
| 3" | 0.25" | 7 | Partially Threaded | Thread Forming | 25 | 92371A581 | 00000 | ||
| 4" | 0.25" | 7 | Partially Threaded | Thread Forming | 10 | 92371A585 | 0000 | ||
Steel Phillips Rounded Head Thread-Forming Screws for Brittle Plastic
 |
Prevent cracking and splitting brittle materials such as phenolic and glass-filled plastic. These screws have alternating high and low threads that minimize stress on your workpiece. 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.
Black-Zinc-Plated Steel—The dark finish withstands occasional exposure to moisture while creating a finished look.
Head | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Lg. | Dia. | Ht. | Tapping Screw Type Designation | Drive Size | Approx. Threads per In. | Drill Bit Size | Shank Cross Section | Pkg. Qty. | Pkg. | |||
Black-Zinc-Plated Steel | ||||||||||||
No. 4 Screw Size | ||||||||||||
| 1/4" | 0.193" | 0.071" | DST | No. 1 | 24 | 44 Ga. | Round | 25 | 90627A111 | 00000 | ||
| 5/16" | 0.193" | 0.071" | DST | No. 1 | 24 | 44 Ga. | Round | 25 | 90627A112 | 0000 | ||
| 3/8" | 0.193" | 0.071" | DST | No. 1 | 24 | 44 Ga. | Round | 25 | 90627A113 | 0000 | ||
| 1/2" | 0.193" | 0.071" | DST | No. 1 | 24 | 44 Ga. | Round | 25 | 90627A114 | 00000 | ||
| 5/8" | 0.193" | 0.071" | DST | No. 1 | 24 | 44 Ga. | Round | 25 | 90627A115 | 00000 | ||
No. 6 Screw Size | ||||||||||||
| 3/8" | 0.254" | 0.097" | DST | No. 2 | 19 | 35 Ga. | Round | 25 | 90627A116 | 0000 | ||
| 1/2" | 0.254" | 0.097" | DST | No. 2 | 19 | 35 Ga. | Round | 25 | 90627A117 | 00000 | ||
| 5/8" | 0.254" | 0.097" | DST | No. 2 | 19 | 35 Ga. | Round | 25 | 90627A118 | 00000 | ||
| 3/4" | 0.254" | 0.097" | DST | No. 2 | 19 | 35 Ga. | Round | 10 | 90627A119 | 0000 | ||
| 1" | 0.254" | 0.097" | DST | No. 2 | 19 | 35 Ga. | Round | 10 | 90627A121 | 0000 | ||
| 1 1/4" | 0.254" | 0.097" | DST | No. 2 | 19 | 35 Ga. | Round | 10 | 90627A122 | 0000 | ||
No. 8 Screw Size | ||||||||||||
| 3/8" | 0.27" | 0.097" | DST | No. 2 | 18 | 30 Ga. | Round | 25 | 90627A123 | 0000 | ||
| 1/2" | 0.27" | 0.097" | DST | No. 2 | 18 | 30 Ga. | Round | 25 | 90627A124 | 00000 | ||
| 5/8" | 0.27" | 0.097" | DST | No. 2 | 18 | 30 Ga. | Round | 25 | 90627A125 | 00000 | ||
| 3/4" | 0.27" | 0.097" | DST | No. 2 | 18 | 30 Ga. | Round | 10 | 90627A126 | 0000 | ||
| 1" | 0.27" | 0.097" | DST | No. 2 | 18 | 30 Ga. | Round | 10 | 90627A127 | 0000 | ||
| 1 1/2" | 0.27" | 0.097" | DST | No. 2 | 18 | 30 Ga. | Round | 10 | 90627A128 | 0000 | ||
No. 10 Screw Size | ||||||||||||
| 3/8" | 0.322" | 0.115" | DST | No. 2 | 16 | 27 Ga. | Round | 10 | 90627A129 | 0000 | ||
| 1/2" | 0.322" | 0.115" | DST | No. 2 | 16 | 27 Ga. | Round | 10 | 90627A131 | 0000 | ||
| 5/8" | 0.322" | 0.115" | DST | No. 2 | 16 | 27 Ga. | Round | 10 | 90627A132 | 0000 | ||
| 3/4" | 0.322" | 0.115" | DST | No. 2 | 16 | 27 Ga. | Round | 10 | 90627A133 | 0000 | ||
| 1" | 0.322" | 0.115" | DST | No. 2 | 16 | 27 Ga. | Round | 10 | 90627A134 | 00000 | ||
| 1 1/4" | 0.322" | 0.115" | DST | No. 2 | 16 | 27 Ga. | Round | 10 | 90627A135 | 00000 | ||
| 1 1/2" | 0.322" | 0.115" | DST | No. 2 | 16 | 27 Ga. | Round | 10 | 90627A136 | 00000 | ||
No. 12 Screw Size | ||||||||||||
| 1/2" | 0.373" | 0.133" | DST | No. 2 | 16 | 19 Ga. | Round | 10 | 90627A137 | 00000 | ||
| 3/4" | 0.373" | 0.133" | DST | No. 2 | 16 | 19 Ga. | Round | 10 | 90627A138 | 00000 | ||
| 1 1/4" | 0.373" | 0.133" | DST | No. 2 | 16 | 19 Ga. | Round | 5 | 90627A139 | 0000 | ||
No. 14 Screw Size | ||||||||||||
| 1/2" | 0.492" | 0.175" | DST | No. 3 | 15 | 7 Ga. | Round | 10 | 90627A141 | 00000 | ||
| 1" | 0.492" | 0.175" | DST | No. 3 | 15 | 7 Ga. | Round | 5 | 90627A142 | 0000 | ||
Steel Phillips Rounded Head Blunt Screws for Sheet Metal
 |
With no point at the tip, these screws reduce the chance of damaging sheet metal. Install them in a drilled hole and the fine threads form a vibration-resistant hold. 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.
Black-Zinc-Plated Steel—The dark finish withstands occasional exposure to moisture while creating a finished look.
Head | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Lg. | Dia. | Ht. | Tapping Screw Type Designation | Drive Size | Approx. Threads per In. | Drill Bit Size | Shank Cross Section | Pkg. Qty. | Pkg. | |||
Black-Zinc-Plated Steel | ||||||||||||
No. 4 Screw Size | ||||||||||||
| 1/4" | 0.219" | 0.08" | B | No. 1 | 24 | 44 Ga. | Round | 50 | 92115A211 | 00000 | ||
| 3/8" | 0.219" | 0.08" | B | No. 1 | 24 | 44 Ga. | Round | 50 | 92115A213 | 0000 | ||
| 1/2" | 0.219" | 0.08" | B | No. 1 | 24 | 44 Ga. | Round | 50 | 92115A215 | 0000 | ||
No. 6 Screw Size | ||||||||||||
| 1/4" | 0.27" | 0.097" | B | No. 2 | 20 | 32 Ga. | Round | 50 | 92115A217 | 0000 | ||
| 3/8" | 0.27" | 0.097" | B | No. 2 | 20 | 32 Ga. | Round | 50 | 92115A219 | 0000 | ||
| 1/2" | 0.27" | 0.097" | B | No. 2 | 20 | 32 Ga. | Round | 50 | 92115A222 | 0000 | ||
| 3/4" | 0.27" | 0.097" | B | No. 2 | 20 | 32 Ga. | Round | 50 | 92115A224 | 0000 | ||
No. 8 Screw Size | ||||||||||||
| 3/8" | 0.322" | 0.115" | B | No. 2 | 18 | 29 Ga. | Round | 50 | 92115A226 | 0000 | ||
| 1/2" | 0.322" | 0.115" | B | No. 2 | 18 | 29 Ga. | Round | 50 | 92115A228 | 0000 | ||
| 3/4" | 0.322" | 0.115" | B | No. 2 | 18 | 29 Ga. | Round | 50 | 92115A231 | 0000 | ||
| 1" | 0.322" | 0.115" | B | No. 2 | 18 | 29 Ga. | Round | 50 | 92115A233 | 0000 | ||
No. 10 Screw Size | ||||||||||||
| 3/8" | 0.373" | 0.133" | B | No. 2 | 16 | 21 Ga. | Round | 50 | 92115A235 | 0000 | ||
| 1/2" | 0.373" | 0.133" | B | No. 2 | 16 | 21 Ga. | Round | 50 | 92115A236 | 0000 | ||
| 3/4" | 0.373" | 0.133" | B | No. 2 | 16 | 21 Ga. | Round | 25 | 92115A239 | 0000 | ||
| 1" | 0.373" | 0.133" | B | No. 2 | 16 | 21 Ga. | Round | 25 | 92115A242 | 0000 | ||
Steel Phillips Rounded Head Thread-Forming Screws for Plastic
 |
 |
Tri-Lobe Shank Cross Section |
Thread these screws into molded or cast holes in plastic without installing inserts. They won’t crack or distort material when fastening enclosures, panels, and other plastic components. 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.
Black-Zinc-Plated Steel—The dark finish withstands occasional exposure to moisture while creating a finished look.
Tri-Lobe Shank—The tri-lobular shank forms threads in thermoplastics such as polypropylene and ABS. These screws displace material to create a tight fit that resists vibration and prevents backing out. Because the shank isn't round, the diameter will vary slightly depending on where you measure it. They're comparable to Plastite screws.
Head | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Lg. | Dia. | Ht. | Tapping Screw Type Designation | Drive Size | Approx. Threads per In. | Drill Bit Size | Shank Cross Section | Pkg. Qty. | Pkg. | |||
Black-Zinc-Plated Steel | ||||||||||||
No. 2 Screw Size | ||||||||||||
| 3/16" | 0.167" | 0.062" | TRS | No. 1 | 28 | 5/64" | Tri-Lobe | 50 | 92295A422 | 00000 | ||
| 1/4" | 0.167" | 0.062" | TRS | No. 1 | 28 | 5/64" | Tri-Lobe | 100 | 92295A111 | 0000 | ||
| 5/16" | 0.167" | 0.062" | TRS | No. 1 | 28 | 5/64" | Tri-Lobe | 50 | 92295A423 | 0000 | ||
| 3/8" | 0.167" | 0.062" | TRS | No. 1 | 28 | 5/64" | Tri-Lobe | 100 | 92295A112 | 0000 | ||
| 1/2" | 0.167" | 0.062" | TRS | No. 1 | 28 | 5/64" | Tri-Lobe | 50 | 92295A113 | 0000 | ||
No. 3 Screw Size | ||||||||||||
| 3/8" | 0.193" | 0.071" | TRS | No. 1 | 24 | 43 Ga. | Tri-Lobe | 50 | 92295A424 | 0000 | ||
No. 4 Screw Size | ||||||||||||
| 1/4" | 0.219" | 0.08" | TRS | No. 1 | 20 | 37 Ga. | Tri-Lobe | 25 | 92295A100 | 0000 | ||
| 5/16" | 0.219" | 0.08" | TRS | No. 1 | 20 | 37 Ga. | Tri-Lobe | 50 | 92295A425 | 0000 | ||
| 3/8" | 0.219" | 0.08" | TRS | No. 1 | 20 | 37 Ga. | Tri-Lobe | 25 | 92295A101 | 0000 | ||
| 1/2" | 0.219" | 0.08" | TRS | No. 1 | 20 | 37 Ga. | Tri-Lobe | 25 | 92295A103 | 0000 | ||
| 5/8" | 0.219" | 0.08" | TRS | No. 1 | 20 | 37 Ga. | Tri-Lobe | 25 | 92295A106 | 0000 | ||
| 3/4" | 0.219" | 0.08" | TRS | No. 1 | 20 | 37 Ga. | Tri-Lobe | 25 | 92295A109 | 0000 | ||
No. 6 Screw Size | ||||||||||||
| 1/4" | 0.27" | 0.097" | TRS | No. 2 | 19 | 1/8" | Tri-Lobe | 25 | 92295A203 | 0000 | ||
| 5/16" | 0.27" | 0.097" | TRS | No. 2 | 19 | 1/8" | Tri-Lobe | 100 | 92295A115 | 0000 | ||
| 3/8" | 0.27" | 0.097" | TRS | No. 2 | 19 | 1/8" | Tri-Lobe | 25 | 92295A205 | 0000 | ||
| 1/2" | 0.27" | 0.097" | TRS | No. 2 | 19 | 1/8" | Tri-Lobe | 25 | 92295A207 | 0000 | ||
| 5/8" | 0.27" | 0.097" | TRS | No. 2 | 19 | 1/8" | Tri-Lobe | 25 | 92295A209 | 0000 | ||
| 3/4" | 0.27" | 0.097" | TRS | No. 2 | 19 | 1/8" | Tri-Lobe | 25 | 92295A212 | 0000 | ||
No. 8 Screw Size | ||||||||||||
| 1/4" | 0.322" | 0.115" | TRS | No. 2 | 16 | 23 Ga. | Tri-Lobe | 25 | 92295A308 | 0000 | ||
| 3/8" | 0.322" | 0.115" | TRS | No. 2 | 16 | 23 Ga. | Tri-Lobe | 25 | 92295A311 | 0000 | ||
| 1/2" | 0.322" | 0.115" | TRS | No. 2 | 16 | 23 Ga. | Tri-Lobe | 25 | 92295A313 | 0000 | ||
| 5/8" | 0.322" | 0.115" | TRS | No. 2 | 16 | 23 Ga. | Tri-Lobe | 25 | 92295A315 | 0000 | ||
| 3/4" | 0.322" | 0.115" | TRS | No. 2 | 16 | 23 Ga. | Tri-Lobe | 25 | 92295A317 | 0000 | ||
| 1" | 0.322" | 0.115" | TRS | No. 2 | 16 | 23 Ga. | Tri-Lobe | 25 | 92295A319 | 0000 | ||
No. 10 Screw Size | ||||||||||||
| 3/8" | 0.373" | 0.133" | TRS | No. 2 | 14 | 15 Ga. | Tri-Lobe | 25 | 92295A415 | 0000 | ||
| 1/2" | 0.373" | 0.133" | TRS | No. 2 | 14 | 15 Ga. | Tri-Lobe | 25 | 92295A417 | 0000 | ||
| 3/4" | 0.373" | 0.133" | TRS | No. 2 | 14 | 15 Ga. | Tri-Lobe | 25 | 92295A426 | 00000 | ||
Drilling Screws for Joining Fabric to Metal
 |  |
Attach fabric, tarps, plastic, and other delicate material to metal surfaces. These screws have a built-in, free-spinning washer that prevents your material from bunching around the screw as you drill. They save time by drilling and fastening in a single step.
Length is measured from the edge of the head.
Black-Zinc-Plated Steel—The dark finish withstands occasional exposure to moisture while creating a finished look.
Drill Tip | Head | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Lg. | Point Size | Lg. | Dia. | Ht. | Max. Drilling Thk. | Tapping Screw Type Designation | Drive Size | Approx. Threads per In. | Washer Material | Washer OD | Pkg. Qty. | Pkg. | |||
Black-Zinc-Plated Steel | |||||||||||||||
No. 8 Screw Size | |||||||||||||||
| 3/4" | No. 2 | 3/16" | 0.25" | 0.11" | 0.098" | BSD | No. 2 | 18 | Zinc-Plated Steel | 0.5" | 25 | 92715A620 | 000000 | ||
| 1" | No. 2 | 3/16" | 0.25" | 0.11" | 0.098" | BSD | No. 2 | 18 | Zinc-Plated Steel | 0.5" | 25 | 92715A630 | 00000 | ||
| 1 1/4" | No. 2 | 3/16" | 0.25" | 0.11" | 0.098" | BSD | No. 2 | 18 | Zinc-Plated Steel | 0.5" | 25 | 92715A640 | 00000 | ||
Steel Torx Rounded Head Thread-Forming Screws for Plastic
 |
|
Tri-Lobe Shank Cross Section |
Thread these screws into plastic without installing an insert or stripping the drive. Also known as star drive screws, these withstand more torque than screws with a slotted, Phillips, square, or hex drive. They press threads into molded or cast holes and won’t crack or distort the material. Use them to fasten plastic components, enclosures, and panels, and their rounded head creates a finished look.
Length is measured from under the head.
Black-Zinc-Plated Steel—The dark finish withstands occasional exposure to moisture while creating a finished look.
Tri-Lobe Shank—The tri-lobular shank forms threads in thermoplastics such as polypropylene and ABS. These screws displace material to create a tight fit that resists vibration and prevents backing out. Because the shank isn't round, the diameter will vary slightly depending on where you measure it. They're comparable to Plastite screws.
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Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.
Head | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Lg. | Dia. | Ht. | Tapping Screw Type Designation | Drive Size | Approx. Threads per In. | Drill Bit Size | Shank Cross Section | Pkg. Qty. | Pkg. | |||
Black-Zinc-Plated Steel | ||||||||||||
No. 2 Screw Size | ||||||||||||
| 1/4" | 0.167" | 0.062" | TRS | T8 | 28 | 5/64" | Tri-Lobe | 50 | 99512A396 | 00000 | ||
| 3/8" | 0.167" | 0.062" | TRS | T8 | 28 | 5/64" | Tri-Lobe | 50 | 99512A397 | 0000 | ||
| 1/2" | 0.167" | 0.062" | TRS | T8 | 28 | 5/64" | Tri-Lobe | 50 | 99512A398 | 0000 | ||
| 3/4" | 0.167" | 0.062" | TRS | T8 | 28 | 5/64" | Tri-Lobe | 50 | 99512A399 | 0000 | ||
No. 4 Screw Size | ||||||||||||
| 1/4" | 0.219" | 0.08" | TRS | T10 | 20 | 37 Ga. | Tri-Lobe | 50 | 99512A401 | 0000 | ||
| 3/8" | 0.219" | 0.08" | TRS | T10 | 20 | 37 Ga. | Tri-Lobe | 50 | 99512A402 | 0000 | ||
| 1/2" | 0.219" | 0.08" | TRS | T10 | 20 | 37 Ga. | Tri-Lobe | 50 | 99512A403 | 0000 | ||
| 3/4" | 0.219" | 0.08" | TRS | T10 | 20 | 37 Ga. | Tri-Lobe | 50 | 99512A404 | 0000 | ||
No. 6 Screw Size | ||||||||||||
| 3/8" | 0.27" | 0.097" | TRS | T15 | 19 | 1/8" | Tri-Lobe | 50 | 99512A405 | 0000 | ||
| 1/2" | 0.27" | 0.097" | TRS | T15 | 19 | 1/8" | Tri-Lobe | 50 | 99512A406 | 0000 | ||
| 3/4" | 0.27" | 0.097" | TRS | T15 | 19 | 1/8" | Tri-Lobe | 50 | 99512A407 | 00000 | ||
No. 8 Screw Size | ||||||||||||
| 1/2" | 0.322" | 0.115" | TRS | T20 | 16 | 23 Ga. | Tri-Lobe | 50 | 99512A408 | 0000 | ||
| 3/4" | 0.322" | 0.115" | TRS | T20 | 16 | 23 Ga. | Tri-Lobe | 50 | 99512A409 | 00000 | ||
| 1" | 0.322" | 0.115" | TRS | T20 | 16 | 23 Ga. | Tri-Lobe | 50 | 99512A411 | 00000 | ||
Steel Phillips Flat Head Screws for Sheet Metal
 |
Fasten trim, brackets, and other objects with countersunk holes to sheet metal. The head of these screws is flat on top and beveled underneath to sit flush with surfaces. They have a pointed tip that starts a hole in sheets up to 0.025" thick, but for thicker material you’ll need to drill first. The Phillips drive handles enough torque to keep drivers from slipping.
Length is measured from the top of the head.
Black-Zinc-Plated Steel—The dark finish withstands occasional exposure to moisture while creating a finished look.
Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.
Head | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Lg. | Dia. | Ht. | Tapping Screw Type Designation | Drive Size | Approx. Threads per In. | Countersink Angle | Flat Head Profile | Drill Bit Size | Pkg. Qty. | Pkg. | |||
Black-Zinc-Plated Steel | |||||||||||||
No. 4 Screw Size | |||||||||||||
| 1/4" | 0.212" | 0.047" | AB | No. 1 | 24 | 82° | Undercut | 44 Ga. | 50 | 96061A101 | 00000 | ||
| 3/8" | 0.212" | 0.047" | AB | No. 1 | 24 | 82° | Standard | 44 Ga. | 50 | 96061A102 | 0000 | ||
| 1/2" | 0.212" | 0.047" | AB | No. 1 | 24 | 82° | Standard | 44 Ga. | 50 | 96061A103 | 0000 | ||
| 3/4" | 0.212" | 0.047" | AB | No. 1 | 24 | 82° | Standard | 44 Ga. | 50 | 96061A104 | 0000 | ||
No. 6 Screw Size | |||||||||||||
| 3/8" | 0.262" | 0.083" | AB | No. 2 | 20 | 82° | Standard | 32 Ga. | 50 | 96061A105 | 0000 | ||
| 1/2" | 0.262" | 0.083" | AB | No. 2 | 20 | 82° | Standard | 32 Ga. | 50 | 96061A106 | 0000 | ||
| 5/8" | 0.262" | 0.083" | AB | No. 2 | 20 | 82° | Standard | 32 Ga. | 50 | 96061A107 | 0000 | ||
| 3/4" | 0.262" | 0.083" | AB | No. 2 | 20 | 82° | Standard | 32 Ga. | 50 | 96061A108 | 0000 | ||
| 1" | 0.262" | 0.083" | AB | No. 2 | 20 | 82° | Standard | 32 Ga. | 50 | 96061A109 | 0000 | ||
No. 8 Screw Size | |||||||||||||
| 3/8" | 0.312" | 0.1" | AB | No. 2 | 18 | 82° | Undercut | 29 Ga. | 25 | 96061A111 | 0000 | ||
| 1/2" | 0.312" | 0.1" | AB | No. 2 | 18 | 82° | Standard | 29 Ga. | 25 | 96061A112 | 0000 | ||
| 5/8" | 0.312" | 0.1" | AB | No. 2 | 18 | 82° | Standard | 29 Ga. | 25 | 96061A113 | 0000 | ||
| 3/4" | 0.312" | 0.1" | AB | No. 2 | 18 | 82° | Standard | 29 Ga. | 25 | 96061A114 | 0000 | ||
| 1" | 0.312" | 0.1" | AB | No. 2 | 18 | 82° | Standard | 29 Ga. | 25 | 96061A115 | 0000 | ||
| 1 1/4" | 0.312" | 0.1" | AB | No. 2 | 18 | 82° | Standard | 29 Ga. | 25 | 96061A116 | 0000 | ||
| 1 1/2" | 0.312" | 0.1" | AB | No. 2 | 18 | 82° | Standard | 29 Ga. | 25 | 96061A117 | 0000 | ||
No. 10 Screw Size | |||||||||||||
| 1/2" | 0.362" | 0.116" | AB | No. 2 | 16 | 82° | Undercut | 21 Ga. | 25 | 96061A118 | 0000 | ||
| 5/8" | 0.362" | 0.116" | A | No. 2 | 12 | 82° | Standard | 21 Ga. | 25 | 96061A119 | 0000 | ||
| 3/4" | 0.362" | 0.116" | A | No. 2 | 12 | 82° | Standard | 21 Ga. | 25 | 96061A121 | 0000 | ||
| 1" | 0.362" | 0.116" | AB | No. 2 | 16 | 82° | Standard | 21 Ga. | 25 | 96061A122 | 0000 | ||
| 1 1/4" | 0.362" | 0.116" | A | No. 2 | 12 | 82° | Standard | 21 Ga. | 25 | 96061A123 | 0000 | ||
| 1 1/2" | 0.362" | 0.116" | A | No. 2 | 12 | 82° | Standard | 21 Ga. | 25 | 96061A124 | 0000 | ||
