1/2-20 Hex Linkage Jack Screw Adjuster (Male RH / Male LH) $ 6.85 Qty: Add to Cart Material: C1045 Steel Zinc Plated Product tolerance: + / - .005 A: 3.435 B: .315 C: 1.560 D: 1.560 E: 1/2-20 LH F: 1/2-20 RH G: .750