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Zoro Select

Zoro Select MPB655 Hex Nut 5/16-24 Grade 2 Chrome Steel 17/64 in 50 Pack

SKU CH-HNQC-WSBSP

Chrome-plated Grade 2 steel hex nuts with 5/16-24 fine threads, 17/64 in height, pack of 50

  • Size5/16-24
  • Product typeNuts
  • Fine-thread 5/16-24 for secure fastening
  • Chrome-plated steel resists corrosion
  • Grade 2 strength meets SAE J995
  • 50-piece pack covers multiple jobs
  • ASME B18.2.2 dimensional standard

Zoro Select MPB655 Hex Nuts

These Zoro Select MPB655 hex nuts are standard fasteners for general-purpose mechanical assembly. The chrome-plated steel construction provides corrosion resistance for indoor and outdoor applications. Each pack contains 50 pieces to support volume requirements.

Sustained load behaviour

Grade 2 steel meets SAE J995 material quality standards for consistent tensile performance under continuous clamping force. The right-hand fine thread with 2B fit maintains joint integrity through vibration and thermal cycling. Chrome plating resists surface degradation during extended service.

Thread specification decides fit

The 5/16-24 fine thread pitch determines compatibility with matching bolts and tapped holes. A 1/2 in hex width and 17/64 in height define the tool engagement and stack height. ASME B 18.2.2 dimensional standards ensure interchangeability across suppliers.

How it compares

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

Price $13.99
Cheaper than about 63% of the 2,607 comparable items (median $18.99).

Specifications

Product
Brand nameZORO SELECT
Product typeNuts
Size & build
Size5/16-24

Questions about this item

How much heat does the 5/16-24 Grade 2 chrome steel hex nut generate when installed all day?

The nut is a passive fastener with no moving parts or electrical load, so it produces no measurable heat during continuous use.

What tools or components must I already own for the 1/2 in hex width nuts to work?

You need a 1/2 in wrench or socket and a matching 5/16-24 fine-thread bolt or stud to engage the 2B thread fit.

Will the 17/64 in height hex nuts thread correctly onto older SAE J995 Grade 2 bolts?

Yes, they share the same Grade 2 material standard and 5/16-24 thread specification, so they engage fully with existing hardware.

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