ข้อต่อเกลียวใน

"5/8" x 1/2" MPT, "1-1/8" x 3/4" MPT, "5/8" x 3/4" MPT, "1-3/8" x 1-1/4" MPT, "7/8" x 1" MPT, "1-3/8" x 1" MPT, "7/8" x 1/2" MPT, "1-5/8" x 1-1/2" MPT, "7/8" x 3/4" MPT, "1/2" x 1/2" MPT, "2-1/8" x 2" MPT, "5/8" x 3/8" MPT, "2-5/8" x 2-1/2" MPT, "3-1/8" x 3" MPT, "3/4" x 1/2" MPT, "3/4" x 3/4" MPT, "1-1/8" x 1" MPT, 1/2” x 3/8” MPT