Value Collection HCI40870350N-005BX Hex Head Bolt

Product Description

The VALUE COLLECTION HCI40870350N-005BX is a 7/8-9 UNC hex head bolt designed for structural and heavy-duty fastening applications. Manufactured from steel to ASTM A490 specifications, this bolt measures 3.5 inches in length under the head and features partial threading. The A490 grade designates a high-strength structural bolt suitable for demanding load-bearing connections. The bright, uncoated finish preserves dimensional tolerances and is appropriate for applications where coating thickness is not required. Licensed contractors, ironworkers, and structural tradespeople install fasteners of this type in both field and shop environments.

This hex head bolt is used in structural steel connections, heavy equipment assembly, and industrial fabrication where high-strength fasteners conforming to ASTM A490 are specified. The 7/8-9 UNC thread size and 3.5-inch under-head length suit it for bolted flange joints, beam connections, and similar structural assemblies. Partial threading provides a bearing shank for shear-loaded connections, which is a common design requirement in structural steel work per AISC and related standards.

Key Features

• ASTM A490 high-strength structural bolt specification
• 7/8-9 UNC thread size with partial threading for shear-load applications
• 3.5-inch length under head for adequate grip in thick structural members
• Bright, uncoated finish — no coating thickness to account for in fit-up
• Steel construction meeting A490 material grade requirements
• Inch measurement system; compatible with standard UNC tooling and nuts

Compatibility

Designed as an OEM-style structural fastener for use with 7/8-9 UNC threaded nuts and washers in applications requiring ASTM A490 high-strength hex head bolts.

Installation Notes

ASTM A490 structural bolts must be installed by qualified personnel following applicable structural codes, including AISC and RCSC specification requirements for high-strength bolted connections. Before installation, ensure mating components are de-energized or shut down as appropriate and that joint surfaces are free of debris that could affect clamping force. Use calibrated torque equipment or other pretension methods specified by the project engineer — do not substitute generic torque values. Inspect for thread damage and confirm correct nut and washer pairing before final assembly.