Product Search › 6 - 40 UNF HTP0640 Image 1 of 1 6 - 40 UNF HTP0640 $200.00 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.