Filter by
Fastener Head Type
Drive Style
System of Measurement
Threading
Material
Drive Size
Thread Type
Thread Direction
Thread Spacing
Tensile Strength
Thread Fit
Export Control Classification Number (ECCN)
REACH
DFARS Specialty Metals
RoHS
Hardness
Pentagon Head Screws
The five-sided head provides tamper resistance by making these screws difficult to remove without special tools. Install or remove with 5-point sockets (sold separately). Also known as penta-bolts and 5-point screws, they are commonly used on water and gas valves. They are made from 18-8 stainless steel, which has good chemical resistance and may be mildly magnetic. Length is measured from under the head.
For technical drawings and 3-D models, click on a part number.
Head | ||||||||
|---|---|---|---|---|---|---|---|---|
| Lg. | Threading | Thread Spacing | Wd. | Ht. | Drive Size | Tensile Strength, psi | Each | |
18-8 Stainless Steel | ||||||||
3/8"-16 | ||||||||
| 3/4" | Fully Threaded | Coarse | 7/8" | 5/16" | 13/16" | 70,000 | 000000000 | 00000 |
| 1" | Fully Threaded | Coarse | 7/8" | 5/16" | 13/16" | 70,000 | 000000000 | 0000 |
| 1 1/2" | Fully Threaded | Coarse | 7/8" | 5/16" | 13/16" | 70,000 | 000000000 | 0000 |
| 2" | Fully Threaded | Coarse | 7/8" | 5/16" | 13/16" | 70,000 | 000000000 | 0000 |
| 2 1/4" | Fully Threaded | Coarse | 7/8" | 5/16" | 13/16" | 70,000 | 000000000 | 0000 |
| 2 1/2" | Fully Threaded | Coarse | 7/8" | 5/16" | 13/16" | 70,000 | 000000000 | 0000 |
| 3" | Fully Threaded | Coarse | 7/8" | 5/16" | 13/16" | 70,000 | 000000000 | 0000 |
| 4" | Fully Threaded | Coarse | 7/8" | 5/16" | 13/16" | 70,000 | 000000000 | 0000 |
1/2"-13 | ||||||||
| 1 1/2" | Fully Threaded | Coarse | 7/8" | 5/16" | 13/16" | 70,000 | 000000000 | 0000 |
| 1 3/4" | Fully Threaded | Coarse | 7/8" | 5/16" | 13/16" | 70,000 | 000000000 | 0000 |
| 2" | Fully Threaded | Coarse | 7/8" | 5/16" | 13/16" | 70,000 | 000000000 | 0000 |
| 2 1/2" | Fully Threaded | Coarse | 7/8" | 5/16" | 13/16" | 70,000 | 000000000 | 0000 |
| 3" | Fully Threaded | Coarse | 7/8" | 5/16" | 13/16" | 70,000 | 000000000 | 0000 |
| 4" | Fully Threaded | Coarse | 7/8" | 5/16" | 13/16" | 70,000 | 000000000 | 0000 |
| 4 1/2" | Fully Threaded | Coarse | 7/8" | 5/16" | 13/16" | 70,000 | 000000000 | 0000 |