SAE Thread with 45° Cone

Dash Size

Nominal Size Threads per In. Male Thread O.D. Female Thread I.D.
-4 7/16 20 7/16 25/64
-5 1/2 20 1/2 29/64
-6 5/8 18 5/8 9/16
-8 3/4 16 3/4 11/16
-10 7/8 14 7/8 13/16
-12 1-1/16 14 1-1/16 63/64

Ref. Catalog Page 43 (Chart 8)

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