Ultra-seal header studs are specially designed and engineered for the professional race car or the pro street machine. The smaller-than-standard tip helps locate the header flange quickly. Zinc plated, self-locking hex flange nuts are ideal for tight fits and spread the load for an even gasket seal. Studs are a must to help prevent stripped threads in aluminum cylinder heads and are black oxide coated for a protective finish. Product Features:Specially designedSmaller than standard tipLocates flange quicklyZinc platedSelf-locking hexFor tight fitsFor even gasket seal
