Value Collection HCI30620300N-020BX Hex Head Bolt 5/8-11

Product Description

The VALUE COLLECTION HCI30620300N-020BX is a 5/8-11 hex head bolt used for heavy structural and mechanical fastening applications. It is manufactured from steel to ASTM A325 specifications, which sets minimum tensile strength and mechanical property requirements for structural bolts. The bolt measures 3 inches in length under the head and features partial threading, leaving a smooth shank section that resists shear loads in bolted connections. The uncoated bright finish indicates no additional surface treatment. This fastener is installed by ironworkers, structural steel erectors, millwrights, and maintenance mechanics working on steel-to-steel connections.

This bolt is suited for structural steel connections in both commercial and industrial settings. Typical applications include beam-to-column connections, base plate anchoring, equipment mounting, and general structural assembly where ASTM A325 grade hardware is specified by engineering drawings or code. The partially threaded design is particularly relevant in shear-critical connections where the bolt shank bears load across a joint interface rather than through thread engagement alone. The UNC thread standard ensures compatibility with standard hex nuts and washers in inch-based fastener systems.

Key Features

• ASTM A325 grade steel meets structural bolt standards for tensile and proof load requirements
• 5/8-11 UNC thread size fits standard inch-series hex nuts and threaded components
• 3-inch length under head accommodates typical structural connection stack-ups
• Partially threaded shank provides a smooth bearing surface for shear load transfer
• Uncoated bright finish suitable for painted, primed, or galvanized connection assemblies

Compatibility

Designed for use in structural steel connections where ASTM A325 hex head bolts with 5/8-11 UNC threading are specified. Intended for use with matching inch-series hex nuts and hardened washers per applicable structural standards.

Installation Notes

Installation of structural A325 bolts should be performed by qualified ironworkers or structural mechanics following applicable building codes and AISC or RCSC bolt installation specifications. Snug-tighten all bolts in a connection before applying final pretension using the turn-of-nut, tension-control, or direct-tension-indicator method as specified by the engineer of record. Do not use impact tools without verifying that the selected tightening method permits it. Inspect for proper thread engagement and confirm washer placement under the turned element before final tightening.