These 5/16"-18 x 1" (1.0") long Grade 8 (G8) Flange Bolts are engineered for applications where strength, reliability, and vibration resistance matter most. Each pack includes 10 Grade 8 Flange bolts. The flange eliminates the need for a separate washer. Designed for use in automotive repairs, trailer builds, agricultural equipment, shop machinery, and structural assemblies, this product eliminates the need to source parts separately—saving time while ensuring proper fit and performance. Whether you're a professional mechanic, fabricator, or serious DIYer, this fastener kit delivers the confidence of industrial-grade hardware in a convenient, ready-to-use package.