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Steel Socket Head Screws
 |
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—Typically chosen for their appearance, these screws have a dark, matte coating to create a finished look. They offer minimal corrosion resistance, so they're best for dry environments.
Head, mm | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
Lg., mm | Dia. | Ht. | Threading | Thread Spacing | Tensile Strength, psi | Fastener Strength Grade/Class | Pkg. Qty. | Pkg. | |||
Black-Oxide Alloy Steel | |||||||||||
M48 × 5 mm | |||||||||||
| 140 | 72 | 48 | Partially Threaded | Coarse | 170,000 | Class 12.9 | 1 | 91290A156 | 000000 | ||
| 180 | 72 | 48 | Partially Threaded | Coarse | 170,000 | Class 12.9 | 1 | 91290A157 | 00000 | ||
| 200 | 72 | 48 | Partially Threaded | Coarse | 170,000 | Class 12.9 | 1 | 91290A158 | 000000 | ||
| 260 | 72 | 48 | Partially Threaded | Coarse | 170,000 | Class 12.9 | 1 | 91290A159 | 000000 | ||
| 300 | 72 | 48 | Partially Threaded | Coarse | 170,000 | Class 12.9 | 1 | 91290A163 | 000000 | ||
L-Keys
