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Ten zinc yellow hex nuts in a clear pack

MIDWEST FASTENER CORP

MIDWEST FASTENER CORP 03721 Hex Nut 5/8"-11 Grade 8 Zinc Yellow 10 PK

SKU CH-4M17-2F47G

Grade 8 steel hex nuts with zinc yellow finish secure 5/8"-11 bolts in a 10 pack

  • Product typeNuts
  • Grade 8 steel handles high-stress fastening
  • Zinc yellow finish resists corrosion in tough environments
  • 5/8"-11 thread fits matching bolts and studs
  • 10-piece pack covers multiple installation points
  • Hex shape allows standard wrench tightening

Application & Fit

These Grade 8 hex nuts secure 5/8"-11 threaded fasteners in high-stress assemblies. The yellow zinc coating resists corrosion in automotive and industrial environments. Each pack contains 10 pieces for small-scale repairs or maintenance tasks.

Thread Standard Limits

The 5/8"-11 UNC thread pitch determines compatibility with matching bolts and studs. Grade 8 strength suits heavy-duty clamping loads but requires correct torque to avoid stripping. Verify the mating fastener grade before installation to ensure joint integrity.

Critical Specification

Grade 8 rating is the single factor that decides if this nut meets your load requirement. Lower-grade hardware will not provide equivalent tensile strength for critical connections. Buyers needing metric threads or a different pitch cannot use this item.

How it compares

Measured against everything we stock in General Hardware & Accessories, at today’s prices. Recalculated every night.

Price $7.99
Cheaper than about 90% of the 2,607 comparable items (median $18.99).

Specifications

Product
Brand nameMIDWEST FASTENER
Product typeNuts

Questions about this item

How many hex nuts are in the 10 PK pack?

The pack contains 10 hex nuts, each sized 5/8"-11 and rated Grade 8 with a zinc yellow finish.

What does the Grade 8 rating mean for these nuts in a real assembly?

Grade 8 indicates high tensile strength steel suitable for heavy-duty fastening on Grade 8 bolts in automotive and structural applications.

What thread standard does the 5/8"-11 size follow and what does it cap?

The 5/8"-11 thread follows Unified National Coarse standard, limiting use to matching 5/8"-11 bolts and studs.

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