Exhaust Manifold Stud 5/16" UNC UNF pitch inlet Length 49mm (12mm-12mm-15mm)

Manifold Studs * thread 5/16x18 UNC - 5/16X24 UNF - 49 mm Long 5/16"X18 UNC thread length 12 mm Plain section length 12 mm 5/16"X24 UNF thread length 15 mm Zinc Plated to Resist Rust or Corrosion NOTE : THIS LISTING FOR PACK OF 1,2,4,8,12,20 PIECES