7/8 UNC x 3 3/4 inch Hex Bolt, Bright Zinc Plated, Grade 8.8
Please Note: Image is for illustration purposes only. For accurate specifications, please refer to the information provided or reach out to us directly.
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, wi. . .
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
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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.
Delivery Information
We offer shipping options to cater for all locations throughout the UK and aim to dispatch all orders on the same working day with a cut-off of 1pm. Please visit our Delivery Information page for more information on the options available.
Please Note: Due to a national shortage of delivery drivers, we cannot guarantee delivery times, for more urgent orders, please contact us for a more accurate lead time.
Returns Information
30 Day Returns on Standard Orders
Standard orders come with a 30-day refund policy. Please visit our Returns Policy page to view our Terms & Conditions.
Delivery Information
We offer shipping options to cater for all locations throughout the UK and aim to dispatch all orders on the same working day with a cut-off of 1pm. Please visit our Delivery Information page for more information on the options available.
Please Note: Due to a national shortage of delivery drivers, we cannot guarantee delivery times, for more urgent orders, please contact us for a more accurate lead time.
Returns Information
30 Day Returns on Standard Orders
Standard orders come with a 30-day refund policy. Please visit our Returns Policy page to view our Terms & Conditions.