200-Pack 5/16"-18 Hex Flange Nuts with Serrations - Brass Hardware for Plumbing, Automotive & DIY Projects - Corrosion Resistant Fasteners

Diameter (Nominal): 5/16"Diameter (Dimension): 0.3125"Thread Pitch: 18Thread Length (Minimum): 0.283"Across Flats (Basic): 0.5"Height (Basic): 0.283"Flange Diameter: 0.68"Category: Hex Flange NutsSystem of Measurement: US UnitsBrand: Aspen Fasteners®Form and Design: Locking SerrationsDrive Style: External Hex DriveThread Length: Full ThreadThread Direction: Right-Hand ThreadMaterial: BrassCoating: UncoatedNB: Product images are copyrighted artistic representations which may not reflect the product's exact appearance, proportions and/or relative dimensions.

Wide flange on one side acts as an integrated washer to distribute the load of the nut.

Also known as a serrated face flange locknut.

Serrations are angled to keep from rotating in the direction that would loosen the fastener.

Brass machinable, ductile, corrosion resistant, excellent electrical and thermal conductivity.