300 Pcs 5/16"-24 Slotted Castle Nuts, Zinc Plated Steel - Ideal for Automotive, Machinery & DIY Projects

DIMENSIONAL ATTRIBUTES- Diameter (Nominal): 5/16"- Thread Pitch: 24- Diameter (Dimension): 0.3125"- Thread Length (Nominal): 0.328"- Across Flats (Basic): 1/2"- Across Flats (Minimum): 0.489"- Across Flats (Maximum): 0.5"- Height (Basic): 21/64"- Height (Minimum): 0.32"- Height (Maximum): 0.336"- Slot Depth (Nominal): 0.096"- Slot Depth (Minimum): 0.08"- Slot Depth (Maximum): 0.116"- Slot Width (Minimum): 0.15"- Slot Width (Maximum): 0.12"PRODUCT ATTRIBUTES- Category: Slotted Castle Nuts- System of Measurement: Inch- Brand: Aspen Fasteners- Drive Style: External Hex Drive- Thread Length: Full Thread- Thread Direction: Right-Hand Thread- Material: Steel- Coating: Zinc Plated- Coating Color: Clear- Hardness Rating: Rockwell C32 maximum- Origin: Origin Undefined- Standards and Specifications: ANSI B18.2.2 (1970)NB: Product images are copyrighted artistic representations which may not reflect the product's exact appearance, proportions and/or relative dimensions.

Also known as a castellated nut. Functionally interchangeable with slotted nuts.

On castle nuts, the turret end is turned down enabling the lock pin to be wound against the turret.

Lock the nut to a mated bolt by using a pin or wire threaded through the bolt and slots on the nut.