Value Collection MP99058 Hex Cap Screw 3/8-16x2 Grade 8 25pk

Product Description

The VALUE COLLECTION MP99058 is a 3/8-16 hex head cap screw designed for high-strength fastening applications in mechanical, structural, and equipment assembly work. This fastener measures 2 inches under the head and features partial threading along the shank. Manufactured from Grade 8 steel to ASME B18.2.1 standards, it delivers high tensile and proof load ratings suitable for demanding bolted joint applications. The uncoated finish is standard for environments where a topcoat or plating will be applied by the installer, or where bare steel is acceptable. Sold in a package quantity of 25.

Grade 8 hex head cap screws in 3/8-16 UNC thread are commonly used in heavy equipment assembly, machinery mounting, automotive and agricultural applications, and structural bolting where high clamp load is required. The partially threaded shank allows the unthreaded body to bear shear loads in close-tolerance clearance holes, making this screw appropriate for joints requiring precise location and load transfer. These fasteners are installed by machinists, maintenance technicians, millwrights, and general mechanical tradespeople.

Key Features

• Grade 8 steel construction meets high tensile strength requirements for demanding bolted joints
• 3/8-16 UNC thread form for broad compatibility with standard nuts and tapped holes
• 2-inch length under head with partial threading allows shear load transfer through the unthreaded shank
• Conforms to ASME B18.2.1 dimensional standards for consistent fitment
• Uncoated finish suitable for post-installation coating or bare-steel applications
• Package quantity of 25 units per order

Compatibility

Designed as an OEM-style replacement or maintenance fastener for any application requiring a 3/8-16 UNC hex head cap screw with a 2-inch grip length, Grade 8 steel material, and ASME B18.2.1 compliance.

Installation Notes

Install using a standard hex wrench or socket sized for a 3/8-16 hex head cap screw. Always torque to the specification called out in the equipment service manual or applicable structural fastener standard for Grade 8 hardware. De-energize or lock out any equipment before performing fastener replacement or tightening on live assemblies. Do not mix Grade 8 fasteners with lower-grade nuts or hardware, as mismatched grades reduce joint integrity.