Product Search › R- 1/8 x 28 BSPT-0125 Image 1 of 1 R- 1/8 x 28 BSPT-0125 $470.00 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.