Product Search › 1/4 - 18 NPTF PTP2518NPTF Image 1 of 1 1/4 - 18 NPTF PTP2518NPTF $345.00 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.