Value Collection 99058 Hex Head Cap Screw 3/8-16 X 2 in Grade 8

Product Description

The VALUE COLLECTION 99058 is a 3/8-16 hex head cap screw designed for general mechanical and structural fastening applications. Manufactured from Grade 8 steel with a bright uncoated finish, this fastener delivers high tensile strength where heavy-duty clamping force is required. The partially threaded shank follows UNC thread standards and conforms to ASME B18.2.1 dimensional specifications. At 2 inches in length under head, it is well suited for medium-depth through-bolting and tapped-hole applications in steel, iron, and heavy equipment assemblies. Sold in a package quantity of 50 units per order.

This fastener is appropriate for use in HVAC equipment mounting, structural steel connections, machinery assembly, and general industrial fabrication. The 3/8-16 UNC thread profile is one of the most common coarse-thread sizes in trade applications, making this screw compatible with standard nuts, washers, and tapped fittings of the same designation. The Grade 8 rating indicates a minimum tensile strength suitable for high-stress bolted joints found in mechanical and equipment installation work across residential, commercial, and light industrial settings.

Key Features

• Grade 8 steel construction for high tensile strength and resistance to shear loads
• 3/8-16 UNC coarse thread profile — one of the most common trade fastener sizes
• 2-inch length under head for medium-depth fastening applications
• Partially threaded shank provides full clamping on the unthreaded section
• Bright uncoated finish suitable for dry or interior applications
• Conforms to ASME B18.2.1 dimensional standards for consistent fitment

Compatibility

Designed for use with standard 3/8-16 UNC hex nuts, flat washers, lock washers, and tapped holes machined to the same thread specification.

Installation Notes

Installation is typically performed by mechanical or HVAC technicians, millwrights, or general tradespeople using a standard hex wrench or socket set sized for 3/8-inch fasteners. Always confirm the tapped hole or mating nut matches the 3/8-16 UNC thread standard before installation. The bright uncoated finish offers no corrosion protection — use stainless or coated alternatives in wet or outdoor environments. Follow applicable torque tables for Grade 8 fasteners at this diameter to avoid under- or over-tightening.