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7/8 UNC x 3 3/4 inch Hex Bolt, Bright Zinc Plated, Grade 8.8

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7/8 UNC x 3 3/4 inch Hex Bolt, Bright Zinc Plated, Grade 8.8

UNC Hex Bolt

Built for strength and reliability, the UNC hex bolt is engineered from Grade 8.8 high-tensile steel for strength and durability, with a bright zinc plated for a mid-level corrosion resistance. 

A hex head bolt, with a unified coarse thread (UNC) ideal for heavy-duty construction, machinery assembly, steel fabrication, and automotive repairs.

Used by professionals and DIY enthusiasts alike to ensure a lasting connection in high-stress environments including structural steelwork, machinery, and automotive industries.

UNC hex bolt specifications

  • Size: 7/8 UNC x 3 3/4 inch (Unified Coarse Thread)
  • Finish: Bright Zinc Plated (BZP)
  • Material: Grade 8.8 High Tensile Steel
  • Head Type: Hex head - allows for easy tightening using standard spanners or sockets

Grade 8.8 bolts offer excellent tensile strength making them the go-to choice for load-bearing and mechanical applications.

Typical Applications for UNC hex bolts

  • Structural connections and frameworks
  • Agricultural and industrial equipment
  • Steel fabrication projects
  • Automotive and mechanical repairs
  • Engineering and maintenance work

FAQs for UNC hex bolts

What does Grade 8.8 mean on a bolt?

Grade 8.8 refers to the bolt’s tensile strength rating and it indicates high strength and hardness suitable for demanding mechanical or structural use.

What is the benefit of Bright Zinc Plating?

The BZP coating helps prevent rust and corrosion, extending the bolt’s life, especially in dry or indoor conditions. For external application in more harsh conditions, A2 and A4 stainless steel is recommended.

Can I use UNC bolts with metric nuts?

No, UNC (Unified Coarse Thread) bolts are part of the imperial system and should only be used with matching UNC nuts.

Is this bolt suitable for outdoor use?

Bright Zinc Plating provides some corrosion resistance, but for external harsh conditions A2 stainless steel hex bolts are recommended. For salt water and marine environments A4 stainless steel is recommended.

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From $1.04

Original: $3.47

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7/8 UNC x 3 3/4 inch Hex Bolt, Bright Zinc Plated, Grade 8.8

$3.47

$1.04

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Description

UNC Hex Bolt

Built for strength and reliability, the UNC hex bolt is engineered from Grade 8.8 high-tensile steel for strength and durability, with a bright zinc plated for a mid-level corrosion resistance. 

A hex head bolt, with a unified coarse thread (UNC) ideal for heavy-duty construction, machinery assembly, steel fabrication, and automotive repairs.

Used by professionals and DIY enthusiasts alike to ensure a lasting connection in high-stress environments including structural steelwork, machinery, and automotive industries.

UNC hex bolt specifications

  • Size: 7/8 UNC x 3 3/4 inch (Unified Coarse Thread)
  • Finish: Bright Zinc Plated (BZP)
  • Material: Grade 8.8 High Tensile Steel
  • Head Type: Hex head - allows for easy tightening using standard spanners or sockets

Grade 8.8 bolts offer excellent tensile strength making them the go-to choice for load-bearing and mechanical applications.

Typical Applications for UNC hex bolts

  • Structural connections and frameworks
  • Agricultural and industrial equipment
  • Steel fabrication projects
  • Automotive and mechanical repairs
  • Engineering and maintenance work

FAQs for UNC hex bolts

What does Grade 8.8 mean on a bolt?

Grade 8.8 refers to the bolt’s tensile strength rating and it indicates high strength and hardness suitable for demanding mechanical or structural use.

What is the benefit of Bright Zinc Plating?

The BZP coating helps prevent rust and corrosion, extending the bolt’s life, especially in dry or indoor conditions. For external application in more harsh conditions, A2 and A4 stainless steel is recommended.

Can I use UNC bolts with metric nuts?

No, UNC (Unified Coarse Thread) bolts are part of the imperial system and should only be used with matching UNC nuts.

Is this bolt suitable for outdoor use?

Bright Zinc Plating provides some corrosion resistance, but for external harsh conditions A2 stainless steel hex bolts are recommended. For salt water and marine environments A4 stainless steel is recommended.