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Twenty-five zinc-yellow steel hex nuts in a pack

MIDWEST FASTENER CORP

MIDWEST FASTENER CORP 03733 Hex Nut 7/16"-20 Steel Grade 8 Zinc Yellow 25 PK

SKU CH-B6W7-9FPKM

Grade 8 steel hex nuts with 7/16"-20 threads and zinc-yellow finish, 25 pack

  • Product typeNuts
  • Grade 8 steel handles high-stress loads
  • Zinc yellow finish resists corrosion
  • 7/16"-20 thread fits matching bolts
  • 25-piece pack covers multiple jobs
  • Ready for automotive and machinery use

Product Identity

These Grade 8 steel hex nuts feature a 7/16"-20 thread pitch and a zinc yellow finish for corrosion resistance. The 25-piece pack suits automotive repair, machinery maintenance and general fastening tasks where high tensile strength is required.

Compatibility Check

Verify that the mating bolt or stud uses a 7/16"-20 thread before ordering. Confirm the application demands Grade 8 strength rather than a lower grade and that the zinc yellow coating meets the project's corrosion-protection needs.

Sustained Load Behaviour

Grade 8 steel maintains clamping force under continuous vibration and heavy static loads without stretching. The zinc yellow plating resists oxidation during extended exposure to moisture and road salt, preserving thread integrity over long service intervals.

How it compares

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

Price $11.99
Cheaper than about 68% of the 2,607 comparable items (median $18.99).

Specifications

Product
Brand nameMIDWEST FASTENER
Product typeNuts

Questions about this item

Does the 25 pack include washers or lock washers, or are they sold separately?

The pack contains 25 hex nuts only. Washers and lock washers are not included and must be purchased separately.

Which thread specification matches a 7/16"-20 bolt — coarse or fine?

The 20 threads per inch indicate a fine-thread UNF pattern, so these nuts match 7/16"-20 bolts, not coarse-thread versions.

What clamping force can a Grade 8 nut with zinc yellow finish deliver on a 7/16" bolt?

Grade 8 steel provides high tensile strength for heavy-duty clamping, while the zinc yellow coating adds corrosion resistance for automotive and industrial use.

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