Product Search › 5/16 - 18 UNC 1TP3118 Image 1 of 1 5/16 - 18 UNC 1TP3118 $115.00 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.