Value Collection HCI30750550N-005BX Hex Head Bolt 3/4-10

Product Description

The VALUE COLLECTION HCI30750550N-005BX is a 3/4-10 UNC hex head bolt designed for structural and heavy-duty fastening applications. It measures 5-1/2 inches in length under the head and is manufactured from Grade A325 steel with a bright, uncoated finish. The bolt is partially threaded, which is standard for structural connections where the shank must bear shear loads without thread engagement at the joint interface. This fastener meets ASTM A325 specifications, making it appropriate for structural steel connections in commercial and industrial construction.

This bolt is commonly used in structural steel framing, beam-to-column connections, base plate anchoring, and heavy equipment mounting. The 3/4-10 thread size and 5-1/2-inch length under head suit applications where bolt length must span multiple plies of material or accommodate thick connection plates. It is installed by ironworkers, structural steel erectors, and experienced general contractors working to engineered connection specifications.

Key Features

• Thread size 3/4-10 UNC for compatibility with standard structural hardware
• 5-1/2 inches length under head for multi-ply or thick-plate connections
• Grade A325 steel meets ASTM A325 structural bolt standard
• Partially threaded shank allows shear load to bear on unthreaded bolt body
• Bright, uncoated finish — no plating or coating to affect dimensional tolerances

Compatibility

Designed as an ASTM A325 structural hex bolt for use with standard 3/4-inch heavy hex nuts and hardened washers in structural steel connections built to AISC and RCSC specifications.

Installation Notes

Installation of A325 structural bolts must be performed by qualified personnel following RCSC Specification for Structural Joints Using High-Strength Bolts. Verify that the correct nut grade and hardened washers are used per connection design requirements. Do not use impact tools that are not calibrated for the required pretension method — snug-tight, turn-of-nut, or direct tension indicator as specified by the engineer of record. Inspect threads and bearing surfaces for damage before installation.