Mandrel Bolt 3pk 5/16-18x1in

The ALLSTAR PERFORMANCE Mandrel Bolt 3-Pack 5/16-18x1in (SKU ALL 31037) is a precision fastening solution engineered for mandrel drive applications in high-stress assembly work. These bolts feature a 12-point head design and black oxide finish, delivering corrosion resistance and reliable grip retention across repeated use cycles. The 5/16-18 thread specification and 1-inch length make these bolts ideal for mandrel kit configurations where precision alignment and secure fastening are non-negotiable.

Steel construction with black oxide coating provides durability in shop and field environments while resisting surface corrosion from moisture and chemical exposure. The 12-point head geometry maximizes contact surface area with multi-point sockets and wrenches, reducing rounding risk during installation and removal—a critical consideration when working with mandrel kits that require repeatable setup cycles. Each bolt weighs 0.09 lbs, and the 3-pack format supports multiple mandrel configurations or serves as backup stock for operators maintaining mandrel-dependent equipment.

This fastening set is suited for mechanics, assembly technicians, and equipment maintenance professionals who rely on standardized mandrel drive systems. The 5/16-18 sizing aligns with common industrial mandrel specifications, making these bolts compatible with established mandrel kit ecosystems. Black oxide finish maintains appearance while offering protection against oxidation, important for tools stored in mixed-humidity environments or transported between job sites.

Mandrel bolts are foundational fasteners in precision assembly workflows where center-point accuracy determines final product quality. The 3-pack quantity positions this product as both a primary kit component and a practical inventory replenishment option for facilities running multiple mandrel stations or rotating equipment through maintenance cycles.