9090684 - Serrated Flange Bolts, 1/4 in.-20 X 1-1/4 in., Zinc Plated Case Hard (25 Pack)
Description
Flange bolts feature a built in washer under the bolt head that helps to distribute the clamping load over a larger area. This "one-piece" design eliminates the need of a separate washer under the bolt head and is preferable for some applications as it can be more efficient and easier to use. A washer is still needed on the nut side unless using a flange nut. The serrations under the flange bite into the surface and help to resist loosening due to vibration.
- Size: 1/4 inch-20 X 1-1/4 inch
- Hex bolt with a serrated circular flange under the head
- Flange eliminates need for separate washer
- Serrations bite into surface and can help to prevent loosening
- Designed for use with a nut (not included) or a threaded hole of the same diameter and thread size
- Thread Type: Coarse, Thread Class: UNC-2A, Point Style: Blunt
- Specification(s) Met: ASME B18.2.1, ASME B18.6.3, and ASME B1.1
