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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.
Ceramic Hex Head Screws
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Secure components in industrial furnaces, kilns, and other extreme-heat applications. These screws won't melt, seize, or become brittle, even at temperatures up to 3000° F. They're also good for cold temperatures. The head's six flat sides keep wrenches and sockets from slipping and rounding off the drive. However, ceramic screws may crack or dent from hard bumps and vibrations.
Length is measured from under the head.
Head | Off-White | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
Lg. | Wd. | Ht. | Threading | Thread Spacing | Tensile Strength | Max. Temp., ° F | Each | |||
Ultra-High-Temperature High-Strength Ceramic Alumina | ||||||||||
2-56 | ||||||||||
| 1/4" | 1/8" | 3/64" | Fully Threaded | Coarse | Not Rated | 3,000 | 94555A077 | 000000 | ||
| 3/8" | 1/8" | 3/64" | Fully Threaded | Coarse | Not Rated | 3,000 | 94555A079 | 00000 | ||
| 1/2" | 1/8" | 3/64" | Fully Threaded | Coarse | Not Rated | 3,000 | 94555A081 | 00000 | ||
4-40 | ||||||||||
| 3/8" | 3/16" | 1/16" | Fully Threaded | Coarse | Not Rated | 3,000 | 94555A108 | 00000 | ||
| 1/2" | 3/16" | 1/16" | Fully Threaded | Coarse | Not Rated | 3,000 | 94555A110 | 00000 | ||
6-32 | ||||||||||
| 1/4" | 1/4" | 3/32" | Fully Threaded | Coarse | Not Rated | 3,000 | 94555A144 | 00000 | ||
| 3/8" | 1/4" | 3/32" | Fully Threaded | Coarse | Not Rated | 3,000 | 94555A146 | 00000 | ||
| 3/4" | 1/4" | 3/32" | Fully Threaded | Coarse | Not Rated | 3,000 | 94555A161 | 00000 | ||
| 1" | 1/4" | 3/32" | Fully Threaded | Coarse | Not Rated | 3,000 | 94555A153 | 00000 | ||
8-32 | ||||||||||
| 3/8" | 1/4" | 7/64" | Fully Threaded | Coarse | Not Rated | 3,000 | 94555A192 | 00000 | ||
| 1/2" | 1/4" | 7/64" | Fully Threaded | Coarse | Not Rated | 3,000 | 94555A194 | 00000 | ||
| 1" | 1/4" | 7/64" | Fully Threaded | Coarse | Not Rated | 3,000 | 94555A199 | 00000 | ||
| 1 1/4" | 1/4" | 7/64" | Fully Threaded | Coarse | Not Rated | 3,000 | 94555A201 | 00000 | ||
1/4"-20 | ||||||||||
| 1/2" | 7/16" | 3/16" | Fully Threaded | Coarse | Not Rated | 3,000 | 94555A317 | 00000 | ||
| 3/4" | 7/16" | 3/16" | Fully Threaded | Coarse | Not Rated | 3,000 | 94555A319 | 00000 | ||
| 1" | 7/16" | 3/16" | Fully Threaded | Coarse | Not Rated | 3,000 | 94555A321 | 00000 | ||
| 1 1/4" | 7/16" | 3/16" | Fully Threaded | Coarse | Not Rated | 3,000 | 94555A323 | 00000 | ||
