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Silver hexagonal nuts in a clear plastic bag

MIDWEST FASTENER CORP

MIDWEST FASTENER CORP 06818 Hex Nut 1/2"-13 Grade 5 Zinc 50 PK

SKU CH-HFME-VVK7A

Secures bolts and machine screws with 50 zinc-plated Grade 5 steel hex nuts in 1/2"-13 thread size

  • Product typeNuts
  • Grade 5 steel handles high-torque fastening
  • Zinc plating resists corrosion in damp conditions
  • 1/2"-13 thread fits standard coarse bolts
  • 50-piece pack covers large assembly jobs
  • Hex shape allows standard wrench tightening

Pack of 50 hex nuts

This pack contains fifty hex nuts sized at 1/2"-13 and manufactured to Grade 5 strength. They are zinc-plated for corrosion resistance and designed for general fastening tasks. Suitable for mechanics, maintenance crews and DIY builders who need a ready supply of standard coarse-thread nuts.

Behaviour under load

Grade 5 steel provides medium tensile strength for everyday structural and mechanical joints. The zinc plating protects the threads during repeated tightening and loosening cycles. These nuts hold securely on matching bolts in vibration-prone environments such as automotive chassis, farm equipment and industrial machinery.

Upgrade path

Replaces worn, stripped or missing 1/2"-13 nuts in existing assemblies without changing bolt specifications. The fifty-piece quantity covers multiple repair jobs or a small production run. Not intended for applications that require Grade 8 or higher proof loads, fine-thread pitches or stainless-steel corrosion performance.

How it compares

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

Price $9.99
Cheaper than about 80% of the 2,607 comparable items (median $18.99).

Specifications

Product
Brand nameMIDWEST FASTENER
Product typeNuts

Questions about this item

How much torque can the Grade 5 steel handle before the zinc plating wears during daily use?

Grade 5 steel is rated for medium-strength fastening on 1/2"-13 threads, and the zinc plating resists corrosion under normal service loads.

Which bolt diameter and thread pitch must I already have for these nuts to fit?

The nuts are cut for 1/2"-13 machine screws or bolts, so you need matching 1/2" diameter bolts with 13 threads per inch.

Will these nuts thread onto older coarse-thread bolts I already own?

Yes, if the older bolts are 1/2"-13 coarse thread they will engage; finer or metric threads will not match.

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