Value Collection R52001159 Hex Cap Screw 3/8-16 X 9 in Grade 5

Product Description

The VALUE COLLECTION R52001159 is a partially threaded hex head cap screw engineered for general industrial and structural fastening applications. Built to Grade 5 steel specifications, this fastener delivers a tensile strength appropriate for medium-duty clamping, assembly, and mechanical fastening tasks. It measures 3/8-16 thread size by 9 inches under the head and carries a zinc-plated finish to provide baseline corrosion resistance in moderately exposed environments. Manufactured to ASME B18.2.1 and SAE J429 standards, this screw is a go-to choice for machinists, millwrights, and maintenance technicians who require a dimensionally verified, grade-marked fastener.

This cap screw is suited for residential and light commercial maintenance, equipment assembly, and fabrication work where a 3/8-16 UNC thread pattern is specified. The 9-inch length under the head accommodates deep through-bolt applications such as machinery bases, structural steel connections, and heavy equipment mounting. Partial threading allows the unthreaded shank to bear shear loads in clearance holes, which is a common requirement in bolted joint design. Sold individually, with a minimum order quantity of 5 pieces.

Key Features

• Grade 5 steel construction meets SAE J429 mechanical property requirements
• ASME B18.2.1 dimensional standard ensures consistent hex head geometry and thread accuracy
• 3/8-16 UNC (Unified National Coarse) thread for broad tool and nut compatibility
• Partially threaded shank supports shear-load applications in clearance-hole assemblies
• Zinc-plated finish provides corrosion resistance for indoor and sheltered outdoor use
• 9-inch under-head length suited for deep through-bolt and long-reach fastening

Compatibility

Designed as a standard replacement or new-installation fastener for any application specifying a 3/8-16 UNC, Grade 5, partially threaded hex head cap screw per ASME B18.2.1 and SAE J429.

Installation Notes

Installation is performed by machinists, millwrights, or maintenance technicians using a standard open-end, box-end, or socket wrench sized for a 3/8-16 hex head fastener. Always confirm the mating nut or tapped hole thread class before installation. Do not exceed the rated grade torque range for Grade 5 fasteners as specified in applicable engineering references or equipment manufacturer documentation. Inspect the zinc-plated finish for damage before use in corrosive environments, and apply thread lubricant only when specified by the joint design.