Grade 5 Hex Nuts

Grade 5 Hex Nuts

Grade 5 hex nuts are heat-treated medium carbon steel nuts with a proof load of 120,000 psi. They are the matching nut for Grade 5 hex cap screws and are the go-to choice for automotive, equipment and general industrial joints that need more strength than a Grade 2 nut. Ours are zinc plated for corrosion resistance, in both coarse and fine thread.

Grade 5 Hex Nuts | The Nutty Company, Inc.

Finished Hex Nuts Data Sheet (PDF) - The Nutty Company

Bolt Tightening Torque Chart (PDF) - The Nutty Company

Grade 5 Hex Nuts - (USS) Coarse Thread

Grade 5 Hex Nuts - (USS) Coarse Thread

Grade 5 Hex Nuts - (SAE) Fine Thread

Grade 5 Hex Nuts - (SAE) Fine Thread

Specifications

  • Strength: SAE Grade 5, heat treated, 120,000 psi proof load
  • Finish: zinc plated
  • Coarse (USS/UNC): 1/4"-20 through 1"-8
  • Fine (SAE/UNF): 1/4"-28 through 1"-14

Common Uses

  • Automotive and truck repair
  • Machinery and equipment assembly
  • Grade 5 bolt and threaded rod connections

FAQ

Can I use a Grade 5 nut on a Grade 8 bolt?
It is better to match grades. A nut that is weaker than the bolt can strip before the bolt reaches full clamp load, so use Grade 8 nuts with Grade 8 bolts.

Coarse or fine thread?
Coarse thread (USS) is most common and assembles faster. Fine thread (SAE) gives finer adjustment and holds better against vibration, and is common in automotive work. Match the thread on your bolt.

Related: Grade 8 Hex Nuts | Grade 2 Hex Nuts

Free shipping on orders over $100, and orders placed before noon EST ship the same day. Purchase orders are accepted from government agencies, schools, hospitals, municipalities and companies with established credit with The Nutty Company, Inc.

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