Aeronautical Standard Plain Castle Nut | AN310-4

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Aeronautical Standard Plain Castle Nut | AN310-4 Thread Direction: Right-hand Thread Class: 3b Surface Treatment Specification: Qq-p-416 type 2 class 3 federal specification single treatment response Surface Treatment: Cadmium Nut Style: Hexagon castellated Nut Height: Between 0.265 inches and 0.297 inches Material: Steel Surface Type: Chamfered or washer faced Thread Qty Per Inch (tpi): 28 Thread Series: Unf (fine thread) Thread Size: 0.250 inches Width Across Flats: Between 0.428 inches and 0.440 inches Show more