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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.
Stainless Steel Oversized Phillips Rounded Head Screws for Sheet Metal
 |
Head | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
Lg. | Dia. | Ht. | Tapping Screw Type Designation | Drive Size | Approx. Threads per In. | Drill Bit Size | Pkg. Qty. | Pkg. | |||
18-8 Stainless Steel | |||||||||||
No. 0 Screw Size | |||||||||||
| 1/4" | 0.131" | 0.037" | AB | No. 0 | 52 | 55 Ga. | 50 | 93406A008 | 00000 | ||
| 3/8" | 0.131" | 0.037" | AB | No. 0 | 52 | 55 Ga. | 50 | 93406A012 | 0000 | ||
| 1/2" | 0.131" | 0.037" | AB | No. 0 | 52 | 55 Ga. | 50 | 93406A017 | 0000 | ||
No. 1 Screw Size | |||||||||||
| 1/4" | 0.164" | 0.045" | AB | No. 0 | 48 | 52 Ga. | 50 | 93406A040 | 0000 | ||
| 3/8" | 0.164" | 0.045" | AB | No. 0 | 48 | 52 Ga. | 50 | 93406A044 | 0000 | ||
| 1/2" | 0.164" | 0.045" | AB | No. 0 | 48 | 52 Ga. | 50 | 93406A048 | 0000 | ||
No. 2 Screw Size | |||||||||||
| 1/4" | 0.194" | 0.053" | A | No. 1 | 32 | 48 Ga. | 100 | 93406A071 | 0000 | ||
| 3/8" | 0.194" | 0.053" | A | No. 1 | 32 | 48 Ga. | 100 | 93406A075 | 0000 | ||
| 1/2" | 0.194" | 0.053" | A | No. 1 | 32 | 48 Ga. | 100 | 93406A079 | 0000 | ||
| 5/8" | 0.194" | 0.053" | A | No. 1 | 32 | 48 Ga. | 100 | 93406A083 | 0000 | ||
| 3/4" | 0.194" | 0.053" | A | No. 1 | 32 | 48 Ga. | 100 | 93406A086 | 0000 | ||
No. 4 Screw Size | |||||||||||
| 3/16" | 0.257" | 0.069" | A | No. 1 | 24 | 44 Ga. | 50 | 93406A095 | 0000 | ||
| 1/4" | 0.257" | 0.069" | A | No. 1 | 24 | 44 Ga. | 100 | 93406A106 | 0000 | ||
| 3/8" | 0.257" | 0.069" | A | No. 1 | 24 | 44 Ga. | 100 | 93406A108 | 0000 | ||
| 1/2" | 0.257" | 0.069" | A | No. 1 | 24 | 44 Ga. | 100 | 93406A110 | 0000 | ||
| 5/8" | 0.257" | 0.069" | A | No. 1 | 24 | 44 Ga. | 100 | 93406A100 | 0000 | ||
| 3/4" | 0.257" | 0.069" | A | No. 1 | 24 | 44 Ga. | 100 | 93406A102 | 0000 | ||
| 1" | 0.257" | 0.069" | A | No. 1 | 24 | 44 Ga. | 100 | 93406A104 | 0000 | ||
No. 6 Screw Size | |||||||||||
| 3/16" | 0.321" | 0.086" | A | No. 2 | 18 | 32 Ga. | 50 | 93406A140 | 0000 | ||
| 1/4" | 0.321" | 0.086" | AB | No. 2 | 18 | 32 Ga. | 100 | 93406A144 | 0000 | ||
| 5/16" | 0.321" | 0.086" | A | No. 2 | 18 | 32 Ga. | 100 | 93406A401 | 0000 | ||
| 3/8" | 0.321" | 0.086" | A | No. 2 | 18 | 32 Ga. | 100 | 93406A146 | 0000 | ||
| 7/16" | 0.321" | 0.086" | A | No. 2 | 18 | 32 Ga. | 100 | 93406A402 | 0000 | ||
| 1/2" | 0.321" | 0.086" | A | No. 2 | 18 | 32 Ga. | 100 | 93406A148 | 0000 | ||
| 5/8" | 0.321" | 0.086" | A | No. 2 | 18 | 32 Ga. | 100 | 93406A150 | 0000 | ||
| 3/4" | 0.321" | 0.086" | A | No. 2 | 18 | 32 Ga. | 100 | 93406A151 | 0000 | ||
| 7/8" | 0.321" | 0.086" | A | No. 2 | 18 | 32 Ga. | 100 | 93406A403 | 0000 | ||
| 1" | 0.321" | 0.086" | A | No. 2 | 18 | 32 Ga. | 100 | 93406A153 | 0000 | ||
| 1 1/4" | 0.321" | 0.086" | A | No. 2 | 18 | 32 Ga. | 100 | 93406A155 | 00000 | ||
| 1 1/2" | 0.321" | 0.086" | A | No. 2 | 18 | 32 Ga. | 100 | 93406A158 | 00000 | ||
| 2" | 0.321" | 0.086" | A | No. 2 | 18 | 32 Ga. | 100 | 93406A404 | 00000 | ||
No. 8 Screw Size | |||||||||||
| 3/8" | 0.384" | 0.102" | AB | No. 2 | 15 | 29 Ga. | 100 | 93406A192 | 0000 | ||
| 7/16" | 0.384" | 0.102" | A | No. 2 | 15 | 29 Ga. | 100 | 93406A405 | 0000 | ||
| 1/2" | 0.384" | 0.102" | A | No. 2 | 15 | 29 Ga. | 100 | 93406A194 | 0000 | ||
| 5/8" | 0.384" | 0.102" | A | No. 2 | 15 | 29 Ga. | 100 | 93406A196 | 0000 | ||
| 3/4" | 0.384" | 0.102" | A | No. 2 | 15 | 29 Ga. | 100 | 93406A197 | 00000 | ||
| 7/8" | 0.384" | 0.102" | A | No. 2 | 15 | 29 Ga. | 100 | 93406A406 | 00000 | ||
| 1" | 0.384" | 0.102" | A | No. 2 | 15 | 29 Ga. | 100 | 93406A199 | 00000 | ||
| 1 1/4" | 0.384" | 0.102" | A | No. 2 | 15 | 29 Ga. | 50 | 93406A201 | 0000 | ||
| 1 1/2" | 0.384" | 0.102" | A | No. 2 | 15 | 29 Ga. | 50 | 93406A203 | 00000 | ||
| 1 3/4" | 0.384" | 0.102" | A | No. 2 | 15 | 29 Ga. | 50 | 93406A204 | 00000 | ||
| 2" | 0.384" | 0.102" | A | No. 2 | 15 | 29 Ga. | 50 | 93406A205 | 00000 | ||
No. 10 Screw Size | |||||||||||
| 3/8" | 0.448" | 0.118" | AB | No. 2 | 12 | 21 Ga. | 100 | 93406A240 | 00000 | ||
| 1/2" | 0.448" | 0.118" | A | No. 2 | 12 | 21 Ga. | 100 | 93406A242 | 00000 | ||
| 5/8" | 0.448" | 0.118" | A | No. 2 | 12 | 21 Ga. | 100 | 93406A244 | 00000 | ||
| 3/4" | 0.448" | 0.118" | A | No. 2 | 12 | 21 Ga. | 50 | 93406A245 | 0000 | ||
| 7/8" | 0.448" | 0.118" | A | No. 2 | 12 | 21 Ga. | 50 | 93406A407 | 0000 | ||
| 1" | 0.448" | 0.118" | A | No. 2 | 12 | 21 Ga. | 50 | 93406A247 | 0000 | ||
| 1 1/4" | 0.448" | 0.118" | A | No. 2 | 12 | 21 Ga. | 50 | 93406A249 | 00000 | ||
| 1 1/2" | 0.448" | 0.118" | A | No. 2 | 12 | 21 Ga. | 50 | 93406A251 | 00000 | ||
| 1 3/4" | 0.448" | 0.118" | A | No. 2 | 12 | 21 Ga. | 50 | 93406A252 | 00000 | ||
| 2" | 0.448" | 0.118" | A | No. 2 | 12 | 21 Ga. | 50 | 93406A253 | 00000 | ||
| 2 1/4" | 0.448" | 0.118" | A | No. 2 | 12 | 21 Ga. | 50 | 93406A408 | 00000 | ||
| 2 1/2" | 0.448" | 0.118" | A | No. 2 | 12 | 21 Ga. | 25 | 93406A254 | 00000 | ||
| 2 3/4" | 0.448" | 0.118" | A | No. 2 | 12 | 21 Ga. | 25 | 93406A409 | 00000 | ||
| 3" | 0.448" | 0.118" | A | No. 2 | 12 | 21 Ga. | 25 | 93406A258 | 00000 | ||
No. 12 Screw Size | |||||||||||
| 1/2" | 0.511" | 0.134" | A | No. 3 | 11 | 3/16" | 50 | 93406A290 | 0000 | ||
| 5/8" | 0.511" | 0.134" | A | No. 3 | 11 | 3/16" | 50 | 93406A411 | 00000 | ||
| 3/4" | 0.511" | 0.134" | A | No. 3 | 11 | 3/16" | 50 | 93406A294 | 00000 | ||
| 1" | 0.511" | 0.134" | A | No. 3 | 11 | 3/16" | 50 | 93406A296 | 00000 | ||
| 1 1/4" | 0.511" | 0.134" | A | No. 3 | 11 | 3/16" | 25 | 93406A298 | 0000 | ||
| 1 1/2" | 0.511" | 0.134" | A | No. 3 | 11 | 3/16" | 25 | 93406A302 | 00000 | ||
| 1 3/4" | 0.511" | 0.134" | A | No. 3 | 11 | 3/16" | 50 | 93406A412 | 00000 | ||
| 2" | 0.511" | 0.134" | A | No. 3 | 11 | 3/16" | 25 | 93406A304 | 00000 | ||
| 2 1/2" | 0.511" | 0.134" | A | No. 3 | 11 | 3/16" | 25 | 93406A307 | 00000 | ||
| 3" | 0.511" | 0.134" | A | No. 3 | 11 | 3/16" | 10 | 93406A310 | 0000 | ||
No. 14 Screw Size | |||||||||||
| 1/2" | 0.557" | 0.134" | AB | No. 3 | 10 | 5.5 mm | 50 | 93406A311 | 00000 | ||
| 5/8" | 0.557" | 0.134" | A | No. 3 | 10 | 5.5 mm | 50 | 93406A312 | 00000 | ||
| 3/4" | 0.557" | 0.134" | A | No. 3 | 10 | 5.5 mm | 50 | 93406A313 | 00000 | ||
| 7/8" | 0.557" | 0.134" | A | No. 3 | 10 | 5.5 mm | 25 | 93406A413 | 0000 | ||
| 1" | 0.557" | 0.134" | A | No. 3 | 10 | 5.5 mm | 25 | 93406A315 | 0000 | ||
| 1 1/4" | 0.557" | 0.134" | A | No. 3 | 10 | 5.5 mm | 25 | 93406A317 | 0000 | ||
| 1 1/2" | 0.557" | 0.134" | A | No. 3 | 10 | 5.5 mm | 25 | 93406A318 | 0000 | ||
| 1 3/4" | 0.557" | 0.134" | A | No. 3 | 10 | 5.5 mm | 25 | 93406A414 | 0000 | ||
| 2" | 0.557" | 0.134" | A | No. 3 | 10 | 5.5 mm | 25 | 93406A320 | 00000 | ||
| 2 1/2" | 0.557" | 0.134" | A | No. 3 | 10 | 5.5 mm | 10 | 93406A322 | 0000 | ||
| 3" | 0.557" | 0.134" | A | No. 3 | 10 | 5.5 mm | 10 | 93406A324 | 0000 | ||
Highly Corrosion-Resistant 316 Stainless Steel | |||||||||||
No. 4 Screw Size | |||||||||||
| 1/4" | 0.257" | 0.069" | A | No. 1 | 24 | 44 Ga. | 100 | 93406A107 | 0000 | ||
| 3/8" | 0.257" | 0.069" | A | No. 1 | 24 | 44 Ga. | 100 | 93406A109 | 0000 | ||
| 1/2" | 0.257" | 0.069" | A | No. 1 | 24 | 44 Ga. | 100 | 93406A111 | 0000 | ||
No. 6 Screw Size | |||||||||||
| 1/4" | 0.321" | 0.086" | A | No. 2 | 18 | 32 Ga. | 100 | 93406A145 | 00000 | ||
| 3/8" | 0.321" | 0.086" | A | No. 2 | 18 | 32 Ga. | 100 | 93406A147 | 00000 | ||
| 1/2" | 0.321" | 0.086" | A | No. 2 | 18 | 32 Ga. | 100 | 93406A149 | 00000 | ||
| 5/8" | 0.321" | 0.086" | A | No. 2 | 18 | 32 Ga. | 100 | 93406A152 | 00000 | ||
| 3/4" | 0.321" | 0.086" | A | No. 2 | 18 | 32 Ga. | 50 | 93406A154 | 0000 | ||
| 1" | 0.321" | 0.086" | A | No. 2 | 18 | 32 Ga. | 50 | 93406A156 | 0000 | ||
No. 8 Screw Size | |||||||||||
| 3/8" | 0.384" | 0.102" | A | No. 2 | 15 | 29 Ga. | 50 | 93406A193 | 0000 | ||
| 1/2" | 0.384" | 0.102" | A | No. 2 | 15 | 29 Ga. | 50 | 93406A195 | 0000 | ||
| 5/8" | 0.384" | 0.102" | A | No. 2 | 15 | 29 Ga. | 50 | 93406A198 | 0000 | ||
| 3/4" | 0.384" | 0.102" | A | No. 2 | 15 | 29 Ga. | 50 | 93406A202 | 00000 | ||
| 1" | 0.384" | 0.102" | A | No. 2 | 15 | 29 Ga. | 50 | 93406A206 | 00000 | ||
| 1 1/4" | 0.384" | 0.102" | A | No. 2 | 15 | 29 Ga. | 25 | 93406A208 | 0000 | ||
| 1 1/2" | 0.384" | 0.102" | A | No. 2 | 15 | 29 Ga. | 25 | 93406A209 | 0000 | ||
No. 10 Screw Size | |||||||||||
| 3/8" | 0.448" | 0.118" | A | No. 2 | 12 | 21 Ga. | 50 | 93406A241 | 00000 | ||
| 1/2" | 0.448" | 0.118" | A | No. 2 | 12 | 21 Ga. | 50 | 93406A243 | 00000 | ||
| 5/8" | 0.448" | 0.118" | A | No. 2 | 12 | 21 Ga. | 50 | 93406A246 | 00000 | ||
| 3/4" | 0.448" | 0.118" | A | No. 2 | 12 | 21 Ga. | 50 | 93406A248 | 00000 | ||
| 1" | 0.448" | 0.118" | A | No. 2 | 12 | 21 Ga. | 25 | 93406A255 | 0000 | ||
| 1 1/4" | 0.448" | 0.118" | A | No. 2 | 12 | 21 Ga. | 25 | 93406A256 | 0000 | ||
| 1 1/2" | 0.448" | 0.118" | A | No. 2 | 12 | 21 Ga. | 25 | 93406A257 | 00000 | ||
| 2" | 0.448" | 0.118" | A | No. 2 | 12 | 21 Ga. | 25 | 93406A259 | 00000 | ||
No. 12 Screw Size | |||||||||||
| 1/2" | 0.511" | 0.134" | A | No. 3 | 11 | 3/16" | 25 | 93406A291 | 0000 | ||
| 3/4" | 0.511" | 0.134" | A | No. 3 | 11 | 3/16" | 25 | 93406A295 | 0000 | ||
| 1" | 0.511" | 0.134" | A | No. 3 | 11 | 3/16" | 25 | 93406A297 | 00000 | ||
| 1 1/2" | 0.511" | 0.134" | A | No. 3 | 11 | 3/16" | 25 | 93406A299 | 00000 | ||
No. 14 Screw Size | |||||||||||
| 3/4" | 0.557" | 0.146" | A | No. 3 | 10 | 5.5 mm | 10 | 93406A314 | 0000 | ||
| 1" | 0.557" | 0.146" | A | No. 3 | 10 | 5.5 mm | 10 | 93406A316 | 0000 | ||
| 1 1/2" | 0.557" | 0.146" | A | No. 3 | 10 | 5.5 mm | 10 | 93406A319 | 0000 | ||
Steel Phillips Rounded Head Screws with Washer for Sheet Metal
 |
Lg. | Head Ht. | Tapping Screw Type Designation | Drive Size | Approx. Threads per In. | Drill Bit Size | Washer Material | Washer OD | Pkg. Qty. | Pkg. | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Black-Oxide Steel | ||||||||||||
No. 8 Screw Size | ||||||||||||
| 1/2" | 0.123" | AB | No. 2 | 15 | 29 Ga. | Steel | 0.5" | 50 | 90399A194 | 000000 | ||
Black Phosphate-Coated Steel | ||||||||||||
No. 6 Screw Size | ||||||||||||
| 5/8" | 0.123" | AB | No. 2 | 18 | 32 Ga. | Steel | 0.5" | 50 | 90399A150 | 00000 | ||
| 3/4" | 0.123" | AB | No. 2 | 18 | 32 Ga. | Steel | 0.5" | 100 | 90399A151 | 00000 | ||
| 1" | 0.123" | AB | No. 2 | 18 | 32 Ga. | Steel | 0.5" | 100 | 90399A153 | 00000 | ||
No. 8 Screw Size | ||||||||||||
| 5/8" | 0.123" | AB | No. 2 | 15 | 29 Ga. | Steel | 0.5" | 100 | 90399A196 | 00000 | ||
| 3/4" | 0.123" | AB | No. 2 | 15 | 29 Ga. | Steel | 0.5" | 100 | 90399A197 | 00000 | ||
| 1" | 0.123" | AB | No. 2 | 15 | 29 Ga. | Steel | 0.5" | 100 | 90399A199 | 00000 | ||
| 1 1/4" | 0.123" | AB | No. 2 | 15 | 29 Ga. | Steel | 0.5" | 100 | 90399A201 | 00000 | ||
No. 10 Screw Size | ||||||||||||
| 1/2" | 0.123" | AB | No. 2 | 12 | 21 Ga. | Steel | 0.5" | 50 | 90399A242 | 00000 | ||
| 3/4" | 0.123" | AB | No. 2 | 12 | 21 Ga. | Steel | 0.5" | 50 | 90399A245 | 00000 | ||
| 1" | 0.123" | AB | No. 2 | 12 | 21 Ga. | Steel | 0.5" | 50 | 90399A247 | 00000 | ||
| 1 1/4" | 0.123" | AB | No. 2 | 12 | 21 Ga. | Steel | 0.5" | 50 | 90399A249 | 00000 | ||
Chrome-Plated Steel | ||||||||||||
No. 6 Screw Size | ||||||||||||
| 5/8" | 0.123" | AB | No. 2 | 18 | 32 Ga. | Steel | 0.5" | 50 | 90398A150 | 00000 | ||
| 3/4" | 0.123" | AB | No. 2 | 18 | 32 Ga. | Steel | 0.5" | 50 | 90398A151 | 00000 | ||
No. 8 Screw Size | ||||||||||||
| 5/8" | 0.123" | AB | No. 2 | 15 | 29 Ga. | Steel | 0.5" | 100 | 90398A196 | 00000 | ||
| 3/4" | 0.123" | AB | No. 2 | 15 | 29 Ga. | Steel | 0.5" | 100 | 90398A197 | 00000 | ||
| 1" | 0.123" | AB | No. 2 | 15 | 29 Ga. | Steel | 0.5" | 100 | 90398A199 | 00000 | ||
| 1 1/4" | 0.123" | AB | No. 2 | 15 | 29 Ga. | Steel | 0.5" | 100 | 90398A201 | 00000 | ||
| 1 1/2" | 0.123" | AB | No. 2 | 15 | 29 Ga. | Steel | 0.5" | 50 | 90398A203 | 00000 | ||
No. 10 Screw Size | ||||||||||||
| 5/8" | 0.123" | AB | No. 2 | 12 | 21 Ga. | Steel | 0.5" | 100 | 90398A244 | 00000 | ||
| 1" | 0.123" | AB | No. 2 | 12 | 21 Ga. | Steel | 0.5" | 100 | 90398A247 | 00000 | ||
| 1 1/4" | 0.123" | AB | No. 2 | 12 | 21 Ga. | Steel | 0.5" | 100 | 90398A249 | 00000 | ||
Steel Oversized Phillips Rounded Head Drilling Screws
 |  |
Secure metal sheets, mesh, and other thin materials to metal framing studs without tearing. Also known as lath screws, the head is wider than other rounded styles to keep material flat against the framing. These screws drill and fasten in one step. Their Phillips drive withstands less torque than a hex drive, so drill with even, steady pressure.
Length is measured from under the head.
Zinc-Plated Steel—A common choice for areas with occasional exposure to moisture.
Drill Tip | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Lg. | Point Size | Lg. | Head Ht. | Flange Dia. | Max. Drilling Thk. | Tapping Screw Type Designation | Drive Size | Approx. Threads per In. | Pkg. Qty. | Pkg. | |||
Zinc-Plated Steel | |||||||||||||
No. 8 Screw Size | |||||||||||||
| 1/2" | No. 2 | 3/16" | 0.097" | 0.44" | 0.098" | BSD | No. 2 | 18 | 100 | 91515A100 | 00000 | ||
| 3/4" | No. 2 | 3/16" | 0.097" | 0.44" | 0.098" | BSD | No. 2 | 18 | 100 | 91515A200 | 0000 | ||
| 1" | No. 2 | 3/16" | 0.097" | 0.44" | 0.098" | BSD | No. 2 | 18 | 100 | 91515A300 | 00000 | ||
| 1 1/4" | No. 2 | 3/16" | 0.097" | 0.44" | 0.098" | BSD | No. 2 | 18 | 100 | 91515A400 | 00000 | ||
| 1 3/8" | No. 2 | 5/32" | 0.097" | 0.44" | 0.098" | BSD | No. 2 | 18 | 50 | 91515A101 | 00000 | ||
| 1 5/8" | No. 2 | 5/32" | 0.097" | 0.44" | 0.098" | BSD | No. 2 | 18 | 25 | 91515A120 | 0000 | ||
| 1 3/4" | No. 2 | 5/32" | 0.097" | 0.44" | 0.098" | BSD | No. 2 | 18 | 25 | 91515A260 | 00000 | ||
| 1 7/8" | No. 2 | 5/32" | 0.097" | 0.44" | 0.098" | BSD | No. 2 | 18 | 25 | 91515A920 | 0000 | ||
| 2" | No. 2 | 5/32" | 0.097" | 0.44" | 0.098" | BSD | No. 2 | 18 | 25 | 91515A420 | 00000 | ||
| 2 1/4" | No. 2 | 5/32" | 0.097" | 0.44" | 0.098" | BSD | No. 2 | 18 | 25 | 91515A500 | 00000 | ||
| 2 1/2" | No. 2 | 5/32" | 0.097" | 0.44" | 0.098" | BSD | No. 2 | 18 | 25 | 91515A570 | 00000 | ||
| 3" | No. 2 | 5/32" | 0.097" | 0.44" | 0.098" | BSD | No. 2 | 18 | 25 | 91515A580 | 00000 | ||
| 3 1/2" | No. 2 | 5/32" | 0.097" | 0.44" | 0.098" | BSD | No. 2 | 18 | 10 | 91515A600 | 00000 | ||
| 4" | No. 2 | 5/32" | 0.097" | 0.44" | 0.098" | BSD | No. 2 | 18 | 10 | 91515A700 | 00000 | ||
| 5" | No. 2 | 5/32" | 0.097" | 0.44" | 0.098" | BSD | No. 2 | 18 | 10 | 91515A710 | 00000 | ||
No. 10 Screw Size | |||||||||||||
| 3/8" | No. 2 | 13/64" | 0.089" | 0.433" | 0.11" | BSD | No. 2 | 16 | 50 | 91515A790 | 00000 | ||
| 1 3/4" | No. 3 | 1/4" | 0.089" | 0.433" | 0.175" | BSD | No. 2 | 16 | 25 | 91515A020 | 00000 | ||
| 2" | No. 3 | 1/4" | 0.089" | 0.433" | 0.175" | BSD | No. 2 | 16 | 25 | 91515A090 | 00000 | ||
| 2 1/4" | No. 3 | 1/4" | 0.089" | 0.433" | 0.175" | BSD | No. 2 | 16 | 25 | 91515A270 | 00000 | ||
| 2 1/2" | No. 3 | 1/4" | 0.089" | 0.433" | 0.175" | BSD | No. 2 | 16 | 10 | 91515A330 | 0000 | ||
| 3" | No. 3 | 1/4" | 0.089" | 0.433" | 0.175" | BSD | No. 2 | 16 | 10 | 91515A440 | 00000 | ||
| 3 1/2" | No. 3 | 1/4" | 0.089" | 0.433" | 0.175" | BSD | No. 2 | 16 | 10 | 91515A271 | 00000 | ||
| 4" | No. 3 | 1/4" | 0.089" | 0.433" | 0.175" | BSD | No. 2 | 16 | 10 | 91515A910 | 00000 | ||
| 4 1/2" | No. 3 | 1/4" | 0.089" | 0.433" | 0.175" | BSD | No. 2 | 16 | 10 | 91515A960 | 00000 | ||
No. 12 Screw Size | |||||||||||||
| 1/2" | No. 2 | 1/4" | 0.113" | 0.452" | 0.11" | BSD | No. 2 | 14 | 25 | 91515A040 | 00000 | ||
| 5/8" | No. 2 | 1/4" | 0.113" | 0.452" | 0.11" | BSD | No. 2 | 14 | 25 | 91515A347 | 00000 | ||
| 1 1/4" | No. 3 | 5/16" | 0.113" | 0.452" | 0.21" | BSD | No. 2 | 14 | 25 | 91515A810 | 00000 | ||
| 1 1/2" | No. 3 | 5/16" | 0.113" | 0.452" | 0.21" | BSD | No. 2 | 14 | 25 | 91515A396 | 00000 | ||
| 2" | No. 3 | 5/16" | 0.113" | 0.452" | 0.21" | BSD | No. 2 | 14 | 10 | 91515A397 | 0000 | ||
| 2 1/2" | No. 3 | 5/16" | 0.113" | 0.452" | 0.21" | BSD | No. 2 | 14 | 10 | 91515A412 | 00000 | ||
| 3" | No. 3 | 5/16" | 0.113" | 0.452" | 0.21" | BSD | No. 2 | 14 | 10 | 91515A130 | 00000 | ||
1/4" Screw Size | |||||||||||||
| 1 1/4" | No. 3 | 5/16" | 0.131" | 0.521" | 1/4" | BSD | No. 3 | 14 | 25 | 91515A750 | 00000 | ||
| 1 1/2" | No. 3 | 5/16" | 0.131" | 0.521" | 1/4" | BSD | No. 3 | 14 | 10 | 91515A760 | 0000 | ||
| 2" | No. 3 | 5/16" | 0.131" | 0.521" | 1/4" | BSD | No. 3 | 14 | 5 | 91515A030 | 00000 | ||
| 2 1/2" | No. 3 | 5/16" | 0.131" | 0.521" | 1/4" | BSD | No. 3 | 14 | 5 | 91515A530 | 0000 | ||
Drilling Screws for Joining Fabric to Metal
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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.
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.
Chrome-Plated Steel—The brightest finish we offer has a mirror-like appearance that is often used in decorative applications. These screws won't rust in wet and outdoor environments.
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. | |||
Zinc-Plated Steel | |||||||||||||||
No. 8 Screw Size | |||||||||||||||
| 3/4" | No. 2 | 3/16" | 0.25" | 0.11" | 0.098" | BSD | No. 2 | 18 | Steel | 0.5" | 50 | 92715A320 | 000000 | ||
| 1" | No. 2 | 3/16" | 0.25" | 0.11" | 0.098" | BSD | No. 2 | 18 | Steel | 0.5" | 50 | 92715A330 | 00000 | ||
| 1 1/4" | No. 2 | 3/16" | 0.25" | 0.11" | 0.098" | BSD | No. 2 | 18 | Steel | 0.5" | 50 | 92715A340 | 00000 | ||
Black-Zinc-Plated Steel | |||||||||||||||
No. 8 Screw Size | |||||||||||||||
| 3/4" | No. 2 | 3/16" | 0.25" | 0.11" | 0.098" | BSD | No. 2 | 18 | Steel | 0.5" | 25 | 92715A620 | 00000 | ||
| 1" | No. 2 | 3/16" | 0.25" | 0.11" | 0.098" | BSD | No. 2 | 18 | Steel | 0.5" | 25 | 92715A630 | 00000 | ||
| 1 1/4" | No. 2 | 3/16" | 0.25" | 0.11" | 0.098" | BSD | No. 2 | 18 | Steel | 0.5" | 25 | 92715A640 | 00000 | ||
Chrome-Plated Steel | |||||||||||||||
No. 8 Screw Size | |||||||||||||||
| 5/8" | No. 2 | 3/16" | 0.25" | 0.11" | 0.098" | BSD | No. 2 | 18 | Steel | 0.5" | 25 | 93153A111 | 0000 | ||
| 3/4" | No. 2 | 3/16" | 0.25" | 0.11" | 0.098" | BSD | No. 2 | 18 | Steel | 0.5" | 25 | 93153A112 | 00000 | ||
| 1" | No. 2 | 3/16" | 0.25" | 0.11" | 0.098" | BSD | No. 2 | 18 | Steel | 0.5" | 25 | 93153A113 | 00000 | ||
Stainless Steel Phillips Oversized Rounded Head Thread-Forming Screws for Plastic
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Tri-Lobe Shank Cross Section |
The wide head on these corrosion-resistant screws distributes pressure to prevent crushing and dimpling plastic. Thread them directly into molded or cast holes—no inserts needed. Screws 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.
18-8 Stainless Steel—The choice for wet and outdoor environments. However, these screws won't hold up to the harsh chemicals that 316 stainless steel can.
Tri-Lobe—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. | |||
18-8 Stainless Steel | ||||||||||||
No. 4 Screw Size | ||||||||||||
| 1/4" | 0.241" | 0.058" | TRS | No. 1 | 20 | 37 Ga. | Tri-Lobe | 25 | 90529A110 | 00000 | ||
No. 6 Screw Size | ||||||||||||
| 1/4" | 0.303" | 0.074" | TRS | No. 2 | 19 | 1/8" | Tri-Lobe | 25 | 90529A120 | 00000 | ||
| 3/8" | 0.303" | 0.074" | TRS | No. 2 | 19 | 1/8" | Tri-Lobe | 25 | 90529A130 | 00000 | ||
| 1/2" | 0.303" | 0.074" | TRS | No. 2 | 19 | 1/8" | Tri-Lobe | 25 | 90529A140 | 00000 | ||
No. 8 Screw Size | ||||||||||||
| 1/2" | 0.364" | 0.088" | TRS | No. 2 | 16 | 23 Ga. | Tri-Lobe | 25 | 90529A150 | 00000 | ||
No. 10 Screw Size | ||||||||||||
| 1/2" | 0.425" | 0.103" | TRS | No. 2 | 14 | 15 Ga. | Tri-Lobe | 25 | 90529A160 | 00000 | ||
Steel Phillips Oversized Rounded Head Thread-Forming Screws for Plastic
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|
Tri-Lobe Shank Cross Section |
The wide head on these screws distributes pressure to prevent crushing and dimpling plastic. Thread them directly into molded or cast holes—no inserts needed. Screws 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.
Zinc-Plated Steel—A common choice for areas with occasional exposure to moisture.
Tri-Lobe—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. | |||
Zinc-Plated Steel | ||||||||||||
No. 4 Screw Size | ||||||||||||
| 1/4" | 0.257" | 0.069" | TRS | No. 1 | 20 | 44 Ga. | Tri-Lobe | 50 | 90524A114 | 00000 | ||
| 1/2" | 0.257" | 0.069" | TRS | No. 1 | 20 | 44 Ga. | Tri-Lobe | 50 | 90524A115 | 0000 | ||
No. 6 Screw Size | ||||||||||||
| 3/8" | 0.321" | 0.086" | TRS | No. 2 | 19 | 32 Ga. | Tri-Lobe | 50 | 90524A116 | 0000 | ||
| 1/2" | 0.321" | 0.086" | TRS | No. 2 | 19 | 32 Ga. | Tri-Lobe | 50 | 90524A117 | 0000 | ||
No. 8 Screw Size | ||||||||||||
| 1/4" | 0.384" | 0.102" | TRS | No. 2 | 16 | 29 Ga. | Tri-Lobe | 50 | 90524A118 | 0000 | ||
| 3/8" | 0.384" | 0.102" | TRS | No. 2 | 16 | 29 Ga. | Tri-Lobe | 50 | 90524A119 | 0000 | ||
| 1/2" | 0.384" | 0.102" | TRS | No. 2 | 16 | 29 Ga. | Tri-Lobe | 50 | 90524A121 | 0000 | ||
| 5/8" | 0.384" | 0.102" | TRS | No. 2 | 16 | 29 Ga. | Tri-Lobe | 50 | 90524A122 | 0000 | ||
No. 10 Screw Size | ||||||||||||
| 3/8" | 0.448" | 0.118" | TRS | No. 2 | 14 | 21 Ga. | Tri-Lobe | 50 | 90524A123 | 0000 | ||
| 1/2" | 0.448" | 0.118" | TRS | No. 2 | 14 | 21 Ga. | Tri-Lobe | 50 | 90524A112 | 00000 | ||
| 1" | 0.448" | 0.118" | TRS | No. 2 | 14 | 21 Ga. | Tri-Lobe | 50 | 90524A113 | 00000 | ||
