Value Collection 36656 Hex Nut 1/2-13 Grade 2H

Product Description

The VALUE COLLECTION 36656 is a 1/2-13 hex nut rated Grade 2H, intended for heavy hex bolting applications in structural and mechanical assemblies. Grade 2H designates a heavy hex nut manufactured to ASTM A194 standards, offering higher proof load and hardness than standard Grade 2 fasteners. This makes it a common choice for high-strength bolted joints in piping flanges, structural steel connections, and pressure vessel applications. Installation is performed by licensed millwrights, pipefitters, ironworkers, or general mechanical tradespeople working within applicable code requirements.

This hex nut is suited for use in commercial and industrial environments where elevated clamp load and resistance to loosening under vibration or load cycling are required. The 1/2-13 thread designation indicates a half-inch nominal diameter with 13 threads per inch, conforming to Unified National Coarse (UNC) thread standards. It pairs with Grade B7 or equivalent alloy studs and bolts in flange and structural bolting service.

Key Features

• Grade 2H rating meets ASTM A194 heavy hex nut requirements for high-strength bolting service
• 1/2-13 UNC thread fits standard half-inch coarse-thread fastener systems
• Heavy hex geometry provides increased bearing surface for improved load distribution
• Suitable for structural, piping flange, and pressure equipment bolt assemblies

Compatibility

Designed as an OEM-style replacement or general-use heavy hex nut for 1/2-13 UNC threaded fastener applications in structural and industrial mechanical assemblies.

Installation Notes

Installation is typically performed by qualified tradespeople following applicable mechanical and structural codes. Always verify thread engagement and torque requirements per the applicable engineering specification or code before tightening. Use a calibrated torque wrench to achieve the required clamp load. Inspect threads for damage or contamination before assembly.