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Steel Socket Head Screws
 |  |
Fully Threaded | Partially Threaded |
Made of alloy steel, these screws are the standard for high-strength fastening. Use them in high-load applications such as dies, presses, and heavy equipment. The deep, six-point socket keeps the hex key from slipping out and damaging the drive.
Length is measured from under the head.
Black-Oxide Alloy Steel—Best for dry environments since moisture will cause these screws to rust. They have a dark, matte appearance.
Head, mm | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
Lg., mm | Dia. | Ht. | Threading | Thread Spacing | Tensile Strength, psi | Fastener Strength Grade/Class | Pkg. Qty. | Pkg. | |||
Black-Oxide Alloy Steel | |||||||||||
M27 × 3 mm | |||||||||||
| 60 | 40 | 27 | Fully Threaded | Coarse | 170,000 | Class 12.9 | 1 | 91290A271 | 00000 | ||
| 70 | 40 | 27 | Fully Threaded | Coarse | 170,000 | Class 12.9 | 1 | 91290A273 | 0000 | ||
| 80 | 40 | 27 | Fully Threaded | Coarse | 170,000 | Class 12.9 | 1 | 91290A275 | 0000 | ||
| 100 | 40 | 27 | Partially Threaded | Coarse | 170,000 | Class 12.9 | 1 | 91290A277 | 00000 | ||
| 120 | 40 | 27 | Partially Threaded | Coarse | 170,000 | Class 12.9 | 1 | 91290A279 | 00000 | ||
| 140 | 40 | 27 | Partially Threaded | Coarse | 170,000 | Class 12.9 | 1 | 91290A291 | 00000 | ||
| 180 | 40 | 27 | Partially Threaded | Coarse | 170,000 | Class 12.9 | 1 | 91290A292 | 00000 | ||
| 200 | 40 | 27 | Partially Threaded | Coarse | 170,000 | Class 12.9 | 1 | 91290A293 | 00000 | ||
