Product Search › 9/16 - 18 UNF 1TP5618 Image 1 of 1 9/16 - 18 UNF 1TP5618 $130.00 Part identification and A, B, C, and D dimensions listed within the product selection. Dimension reference image below. Quantity: Add To Cart Added! Part identification and A, B, C, and D dimensions listed within the product selection. Dimension reference image below.