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About Hex Head Screws and Bolts
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Choose a hex head fastener with the right threading, thread size, material, and strength for your equipment.
Steel Hex Head Screws for Blind Holes
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Installed View |
Install these screws when you can only access one side of material. They're a higher-strength alternative to blind rivets. To install, hold the washer in place with a wrench, then use a hex socket to turn the screw. As the screw is tightened, the attached nut expands the sleeve to create a strong clamping force on the back of the material.
Head height does not include the washer. Length is measured from under the washer.
Medium-Strength Fastener—Your go-to screws for fastening most machinery and equipment. They have tensile strengths from 90,000 to 120,000 psi.
Zinc-Plated Steel—A common choice for areas with occasional exposure to moisture.
Head, mm | Washer | Sleeve | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
For Material Thk. | For Hole Size | Lg. | Wd. | Ht. | OD | Thk. | OD | Lg. | Threading | Thread Spacing | Fastener Strength Grade/Class | Tensile Strength, psi | Each | |||
Medium-Strength Zinc-Plated Steel | ||||||||||||||||
M16 × 2 mm | ||||||||||||||||
| 1/2" to 1 1/8" | 1 1/16" | 2 5/8" | 24 | 10 | 1.500" | 0.313" | 1 1/64" | 1 5/8" | Fully Threaded | Coarse | Class 8.8 | 110,000 | 90187A121 | 000000 | ||
| 1 1/8" to 2" | 1 1/16" | 3 5/8" | 24 | 10 | 1.500" | 0.313" | 1 1/64" | 2 1/2" | Fully Threaded | Coarse | Class 8.8 | 110,000 | 90187A122 | 00000 | ||
| 2" to 2 13/16" | 1 1/16" | 4 7/16" | 24 | 10 | 1.500" | 0.313" | 1 1/64" | 3 5/16" | Fully Threaded | Coarse | Class 8.8 | 110,000 | 90187A123 | 00000 | ||
