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Tapping Screw Type Designation
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Compare drilling, pointed, thread-forming, and thread-cutting tips to find the best choice for your material.
Stainless Steel Phillips Rounded Head Thread-Cutting Screws for Soft Metal
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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 Designation | 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 | ||
