Value Collection 99068 Hex Cap Screw 3/8-16 X 5 in Grade 8 25pk

Product Description

The VALUE COLLECTION 99068 is a partially threaded hex head cap screw designed for high-strength fastening applications in mechanical, industrial, and structural assemblies. Manufactured from Grade 8 steel to the ASME B18.2.1 standard, this fastener delivers the elevated tensile and proof-load strength required where standard hardware grades are insufficient. The 3/8-16 UNC thread profile and 5-inch length under head make it well suited for through-bolted connections and heavy-duty clamping situations. The uncoated finish is appropriate for applications where secondary coating, plating, or painting will be applied in the field. Sold in a package quantity of 25.

This cap screw is used across a wide range of trades and industries, including HVAC equipment mounting, mechanical equipment bases, structural steel connections, and general industrial assembly. The partially threaded shank provides a smooth bearing surface through the grip length, which is advantageous in bolted joint designs where shank contact with the mating material is preferred over full thread engagement. Licensed contractors and industrial maintenance technicians are the primary installers of Grade 8 fasteners in these applications.

Key Features

• Grade 8 steel construction for high tensile and proof-load strength
• 3/8-16 UNC thread size in inch measurement system
• 5-inch length under head for through-bolt and deep clamping applications
• Partially threaded shank provides smooth grip-length bearing surface
• Meets ASME B18.2.1 dimensional standard
• Uncoated finish compatible with field-applied coatings or plating

Compatibility

Designed for use in any application requiring a 3/8-16 UNC hex head cap screw with a 5-inch length under head and Grade 8 steel strength rating, conforming to ASME B18.2.1.

Installation Notes

Grade 8 hex head cap screws are typically installed by licensed mechanics, millwrights, or qualified tradespeople using standard hex wrenches or socket drives. Always use a calibrated torque wrench and apply torque values appropriate for the fastener grade, size, and joint design as specified by the equipment manufacturer or applicable engineering standards. Ensure mating threads are clean and free of debris before installation. Do not mix Grade 8 fasteners with lower-grade nuts or hardware in high-load applications.