Value Collection 451121BR Hex Head Cap Screw 5/8-11 X 7 in

Product Description

The VALUE COLLECTION 451121BR is a Grade 8 steel hex head cap screw designed for high-strength bolted assemblies in demanding industrial, mechanical, and structural applications. With a 5/8-11 UNC thread size and a 7-inch length under head, this fastener delivers the clamping force and tensile strength required where standard-grade hardware falls short. It features partial threading, leaving a smooth shank section for shear-load applications. The uncoated bright finish is suited for environments where additional plating or coating will be applied by the installer or where bare steel is acceptable. Manufactured to ASME B18.2.1 dimensional standards, it meets consistent tolerances for head geometry and thread fit.

This cap screw is used across a wide range of trade and industrial settings, including HVAC equipment mounting, mechanical room structural assemblies, pump and compressor bases, and general fabrication work. The 5/8-11 coarse thread pattern seats quickly and resists cross-threading in field conditions. The 7-inch under-head length accommodates thick material stacks, spacers, or flanged connections. It is sold individually and suited for applications requiring high-grade fasteners in single or low-quantity replacements or repairs.

Key Features

• Grade 8 steel construction for high tensile and proof-load strength
• 5/8-11 UNC coarse thread for fast engagement and broad tool compatibility
• 7-inch length under head to span thick material stacks or flanged joints
• Partially threaded shank provides a bearing surface for shear-load applications
• Uncoated bright finish compatible with field-applied coatings or plating
• Manufactured to ASME B18.2.1 for consistent dimensional tolerances

Compatibility

Designed as a standard 5/8-11 UNC Grade 8 hex head cap screw per ASME B18.2.1, compatible with any application requiring a 5/8-11 coarse-thread fastener of this length and material grade.

Installation Notes

Installation should be performed by a qualified mechanic, millwright, or tradesperson familiar with high-strength fastener procedures. Always verify mating thread condition and clean threads before assembly to achieve accurate torque. Use a calibrated torque wrench appropriate for Grade 8 hardware and follow the applicable equipment or structural specification for torque value. Do not substitute a lower-grade fastener in any application engineered for Grade 8 specification.