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Low-Strength ASTM Grade A Steel Square Head Screws
 |  |
Fully Threaded | Partially Threaded |
About half the strength of medium-strength screws, these screws can be used for light duty fastening applications, such as securing access panels. Large flat sides make them easy to grip with a wrench and keep them from rotating in square holes. Material meets ASTM A307 specifications for quality. Length is measured from under the head.
Square Head Screws | Nuts | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Head | |||||||||||||||
Lg. | Threading | Min. Thread Lg. | Thread Spacing | Wd. | Ht. | Tensile Strength, psi | Specs. Met | Pkg. Qty. | Pkg. | Pkg. Qty. | Pkg. | ||||
Steel | |||||||||||||||
1/4"-20 Threads | |||||||||||||||
| 1" | Fully Threaded | — | Coarse | 3/8" | 11/64" | 60,000 | ASTM A307 | 25 | 91465A101 | 000000 | 100 | 94855A127 | 000000 | ||
| 1 1/4" | Fully Threaded | — | Coarse | 3/8" | 11/64" | 60,000 | ASTM A307 | 25 | 91465A501 | 00000 | 100 | 94855A127 | 00000 | ||
| 1 1/2" | Fully Threaded | — | Coarse | 3/8" | 11/64" | 60,000 | ASTM A307 | 50 | 91465A502 | 00000 | 100 | 94855A127 | 00000 | ||
| 2" | Fully Threaded | — | Coarse | 3/8" | 11/64" | 60,000 | ASTM A307 | 25 | 91465A503 | 00000 | 100 | 94855A127 | 00000 | ||
5/16"-18 Threads | |||||||||||||||
| 3/4" | Fully Threaded | — | Coarse | 1/2" | 13/64" | 60,000 | ASTM A307 | 25 | 91465A113 | 00000 | 100 | 90043A030 | 00000 | ||
| 1" | Fully Threaded | — | Coarse | 1/2" | 13/64" | 60,000 | ASTM A307 | 25 | 91465A116 | 00000 | 100 | 90043A030 | 00000 | ||
| 1 1/4" | Fully Threaded | — | Coarse | 1/2" | 13/64" | 60,000 | ASTM A307 | 25 | 91465A119 | 00000 | 100 | 90043A030 | 00000 | ||
| 1 1/2" | Fully Threaded | — | Coarse | 1/2" | 13/64" | 60,000 | ASTM A307 | 10 | 91465A504 | 0000 | 100 | 90043A030 | 00000 | ||
| 2" | Fully Threaded | — | Coarse | 1/2" | 13/64" | 60,000 | ASTM A307 | 10 | 91465A505 | 00000 | 100 | 90043A030 | 00000 | ||
| 3" | Fully Threaded | — | Coarse | 1/2" | 13/64" | 60,000 | ASTM A307 | 10 | 91465A506 | 00000 | 100 | 90043A030 | 00000 | ||
| 4" | Fully Threaded | — | Coarse | 1/2" | 13/64" | 60,000 | ASTM A307 | 10 | 91465A507 | 00000 | 100 | 90043A030 | 00000 | ||
3/8"-16 Threads | |||||||||||||||
| 1" | Fully Threaded | — | Coarse | 9/16" | 1/4" | 60,000 | ASTM A307 | 10 | 91465A134 | 00000 | 100 | 90043A031 | 00000 | ||
| 1 1/4" | Fully Threaded | — | Coarse | 9/16" | 1/4" | 60,000 | ASTM A307 | 10 | 91465A508 | 0000 | 100 | 90043A031 | 00000 | ||
| 1 1/2" | Fully Threaded | — | Coarse | 9/16" | 1/4" | 60,000 | ASTM A307 | 10 | 91465A509 | 00000 | 100 | 90043A031 | 00000 | ||
| 1 3/4" | Fully Threaded | — | Coarse | 9/16" | 1/4" | 60,000 | ASTM A307 | 10 | 91465A511 | 00000 | 100 | 90043A031 | 00000 | ||
| 2" | Fully Threaded | — | Coarse | 9/16" | 1/4" | 60,000 | ASTM A307 | 10 | 91465A512 | 00000 | 100 | 90043A031 | 00000 | ||
| 2 1/2" | Fully Threaded | — | Coarse | 9/16" | 1/4" | 60,000 | ASTM A307 | 10 | 91465A513 | 00000 | 100 | 90043A031 | 00000 | ||
| 3" | Fully Threaded | — | Coarse | 9/16" | 1/4" | 60,000 | ASTM A307 | 10 | 91465A514 | 00000 | 100 | 90043A031 | 00000 | ||
| 3 1/2" | Fully Threaded | — | Coarse | 9/16" | 1/4" | 60,000 | ASTM A307 | 10 | 91465A515 | 00000 | 100 | 90043A031 | 00000 | ||
1/2"-13 Threads | |||||||||||||||
| 1" | Fully Threaded | — | Coarse | 3/4" | 21/64" | 60,000 | ASTM A307 | 10 | 91465A158 | 00000 | 50 | 90043A055 | 00000 | ||
| 1 1/2" | Fully Threaded | — | Coarse | 3/4" | 21/64" | 60,000 | ASTM A307 | 10 | 91465A161 | 00000 | 50 | 90043A055 | 00000 | ||
| 1 3/4" | Fully Threaded | — | Coarse | 3/4" | 21/64" | 60,000 | ASTM A307 | 10 | 91465A164 | 00000 | 50 | 90043A055 | 00000 | ||
| 2" | Fully Threaded | — | Coarse | 3/4" | 21/64" | 60,000 | ASTM A307 | 10 | 91465A516 | 00000 | 50 | 90043A055 | 00000 | ||
| 2 1/4" | Partially Threaded | 1 1/4" | Coarse | 3/4" | 21/64" | 60,000 | ASTM A307 | 5 | 91465A170 | 00000 | 50 | 90043A055 | 00000 | ||
| 2 1/2" | Partially Threaded | 1 1/4" | Coarse | 3/4" | 21/64" | 60,000 | ASTM A307 | 5 | 91465A173 | 00000 | 50 | 90043A055 | 00000 | ||
| 3" | Partially Threaded | 1 1/4" | Coarse | 3/4" | 21/64" | 60,000 | ASTM A307 | 5 | 91465A176 | 00000 | 50 | 90043A055 | 00000 | ||
| 3 1/2" | Partially Threaded | 1 1/4" | Coarse | 3/4" | 21/64" | 60,000 | ASTM A307 | 5 | 91465A179 | 00000 | 50 | 90043A055 | 00000 | ||
| 4" | Partially Threaded | 1 1/4" | Coarse | 3/4" | 21/64" | 60,000 | ASTM A307 | 5 | 91465A182 | 00000 | 50 | 90043A055 | 00000 | ||
| 5" | Partially Threaded | 1 1/4" | Coarse | 3/4" | 21/64" | 60,000 | ASTM A307 | 5 | 91465A185 | 00000 | 50 | 90043A055 | 00000 | ||
| 6" | Partially Threaded | 1 1/4" | Coarse | 3/4" | 21/64" | 60,000 | ASTM A307 | 5 | 91465A191 | 00000 | 50 | 90043A055 | 00000 | ||
| 8" | Partially Threaded | 1 1/2" | Coarse | 3/4" | 21/64" | 60,000 | ASTM A307 | 1 | 91465A194 | 0000 | 50 | 90043A055 | 00000 | ||
5/8"-11 Threads | |||||||||||||||
| 2" | Fully Threaded | — | Coarse | 15/16" | 27/64" | 60,000 | ASTM A307 | 1 | 91465A517 | 0000 | 25 | 90043A065 | 00000 | ||
| 2 1/2" | Partially Threaded | 1 1/2" | Coarse | 15/16" | 27/64" | 60,000 | ASTM A307 | 5 | 91465A212 | 00000 | 25 | 90043A065 | 00000 | ||
| 3" | Partially Threaded | 1 1/2" | Coarse | 15/16" | 27/64" | 60,000 | ASTM A307 | 1 | 91465A215 | 0000 | 25 | 90043A065 | 00000 | ||
| 3 1/2" | Partially Threaded | 1 1/2" | Coarse | 15/16" | 27/64" | 60,000 | ASTM A307 | 1 | 91465A218 | 0000 | 25 | 90043A065 | 00000 | ||
| 4" | Partially Threaded | 1 1/2" | Coarse | 15/16" | 27/64" | 60,000 | ASTM A307 | 1 | 91465A221 | 0000 | 25 | 90043A065 | 00000 | ||
| 4 1/2" | Partially Threaded | 1 1/2" | Coarse | 15/16" | 27/64" | 60,000 | ASTM A307 | 1 | 91465A224 | 0000 | 25 | 90043A065 | 00000 | ||
| 5" | Partially Threaded | 1 1/2" | Coarse | 15/16" | 27/64" | 60,000 | ASTM A307 | 1 | 91465A227 | 0000 | 25 | 90043A065 | 00000 | ||
| 6" | Partially Threaded | 1 1/2" | Coarse | 15/16" | 27/64" | 60,000 | ASTM A307 | 1 | 91465A230 | 0000 | 25 | 90043A065 | 00000 | ||
| 7" | Partially Threaded | 1 3/4" | Coarse | 15/16" | 27/64" | 60,000 | ASTM A307 | 1 | 91465A233 | 0000 | 25 | 90043A065 | 00000 | ||
| 11" | Partially Threaded | 1 3/4" | Coarse | 15/16" | 27/64" | 60,000 | ASTM A307 | 1 | 91465A236 | 00000 | 25 | 90043A065 | 00000 | ||
3/4"-10 Threads | |||||||||||||||
| 2 1/2" | Partially Threaded | 1 3/4" | Coarse | 1 1/8" | 1/2" | 60,000 | ASTM A307 | 1 | 91465A242 | 0000 | 10 | 90043A075 | 00000 | ||
| 3" | Partially Threaded | 1 3/4" | Coarse | 1 1/8" | 1/2" | 60,000 | ASTM A307 | 1 | 91465A245 | 0000 | 10 | 90043A075 | 00000 | ||
| 3 3/4" | Partially Threaded | 1 3/4" | Coarse | 1 1/8" | 1/2" | 60,000 | ASTM A307 | 1 | 91465A248 | 0000 | 10 | 90043A075 | 00000 | ||
| 4" | Partially Threaded | 1 3/4" | Coarse | 1 1/8" | 1/2" | 60,000 | ASTM A307 | 1 | 91465A251 | 0000 | 10 | 90043A075 | 00000 | ||
| 4 1/2" | Partially Threaded | 1 3/4" | Coarse | 1 1/8" | 1/2" | 60,000 | ASTM A307 | 1 | 91465A254 | 0000 | 10 | 90043A075 | 00000 | ||
| 5" | Partially Threaded | 1 3/4" | Coarse | 1 1/8" | 1/2" | 60,000 | ASTM A307 | 1 | 91465A257 | 0000 | 10 | 90043A075 | 00000 | ||
| 5 1/2" | Partially Threaded | 1 3/4" | Coarse | 1 1/8" | 1/2" | 60,000 | ASTM A307 | 1 | 91465A260 | 0000 | 10 | 90043A075 | 00000 | ||
| 6" | Partially Threaded | 1 3/4" | Coarse | 1 1/8" | 1/2" | 60,000 | ASTM A307 | 1 | 91465A263 | 0000 | 10 | 90043A075 | 00000 | ||
| 7" | Partially Threaded | 2" | Coarse | 1 1/8" | 1/2" | 60,000 | ASTM A307 | 1 | 91465A266 | 0000 | 10 | 90043A075 | 00000 | ||
| 8" | Partially Threaded | 2" | Coarse | 1 1/8" | 1/2" | 60,000 | ASTM A307 | 1 | 91465A269 | 00000 | 10 | 90043A075 | 00000 | ||
| 9" | Partially Threaded | 2" | Coarse | 1 1/8" | 1/2" | 60,000 | ASTM A307 | 1 | 91465A272 | 00000 | 10 | 90043A075 | 00000 | ||
| 10" | Partially Threaded | 2" | Coarse | 1 1/8" | 1/2" | 60,000 | ASTM A307 | 1 | 91465A275 | 00000 | 10 | 90043A075 | 00000 | ||
| 12" | Partially Threaded | 2" | Coarse | 1 1/8" | 1/2" | 60,000 | ASTM A307 | 1 | 91465A278 | 00000 | 10 | 90043A075 | 00000 | ||
1"-8 Threads | |||||||||||||||
| 6" | Partially Threaded | 2 1/4" | Coarse | 1 1/2" | 21/32" | 60,000 | ASTM A307 | 1 | 91465A287 | 00000 | 5 | 90043A095 | 00000 | ||
| 7" | Partially Threaded | 2 1/2" | Coarse | 1 1/2" | 21/32" | 60,000 | ASTM A307 | 1 | 91465A290 | 00000 | 5 | 90043A095 | 00000 | ||
| 9" | Partially Threaded | 2 1/2" | Coarse | 1 1/2" | 21/32" | 60,000 | ASTM A307 | 1 | 91465A293 | 00000 | 5 | 90043A095 | 00000 | ||
| 10" | Partially Threaded | 2 1/2" | Coarse | 1 1/2" | 21/32" | 60,000 | ASTM A307 | 1 | 91465A296 | 00000 | 5 | 90043A095 | 00000 | ||
