00279 Hex Cap Screw, 5/16-18 Thread, 2-1/2 in OAL, 5 Grade, Steel, Zinc-Plated, SAE Measuring

These 5/16-18 x 2-1/2 Grade 5 coarse hex cap screws are crafted from durable Grade 5 steel, delivering reliable strength and long-lasting performance for demanding applications. Featuring a zinc finish, they offer moderate corrosion resistance, making them suitable for a variety of environments. The hex head design allows for easy installation and removal using standard wrenches or sockets, while head stamping ensures quick class and grade identification even after installation. Ideal for industrial, automotive and construction projects, these bolts provide precise threading for smooth engagement and maximum holding power, ensuring components stay securely connected under stress. Whether used in machinery assembly or structural applications, these hex cap screws combine strength, ease of use and durability to meet professional and DIY needs.