Contact us
Email:442258105@qq.com
WhatsApp:+8618731028059
Dongmingyang naustral Park, Linmingguan Town,Yongnian District, Hebei Province, China
Grade 8.8/10.9 Black Oxide Hex Bolts
Keywords:
Share to
- 产品描述
-
Grade 8.8 Black Oxide Hex Bolts (DIN 931/933)
These Grade 8.8 black oxide hex bolts are engineered for heavy-duty fastening in industrial, construction, and structural applications. The black oxide finish provides a sleek appearance and mild corrosion resistance, while heat-treated steel construction ensures reliable performance under high loads. Available in both partially threaded (DIN 931) and fully threaded (DIN 933) versions to meet different assembly needs.✅ Key Features- Grade 8.8 High Strength: Heat-treated carbon steel for superior tensile strength
- Black Oxide Finish: Offers mild corrosion resistance and a professional black appearance
- Hex Head Design: Easy installation with standard wrenches
- Precision Threading: Clean, uniform threads for smooth engagement and locking
- DIN Compliant: Manufactured to DIN 931 (partially threaded) and DIN 933 (fully threaded) standards
✅ Common Applications- Structural steel, bridge construction, and infrastructure projects
- Heavy machinery, mining equipment, and industrial assemblies
- Automotive, robotics, and tooling applications
- Any application requiring durable, high-torque fasteners
✅ Why Choose Our Black Oxide Hex Bolts?- ISO certified quality control for consistent strength and dimensions
- OEM/ODM customization for custom sizes, grades, and thread types
- Bulk pricing for large orders and fast lead times
- Available in higher grades (10.9/12.9) and various lengths
Contact us today for a free quote on custom or standard black oxide hex bolts.📋Feature Details Product Name
Grade 8.8 Black Oxide Hex Bolts (DIN 931/933) Material
High-Strength Carbon Steel Finish
Black Oxide Strength Grades
8.8 / 10.9 / 12.9 (custom grades available) Standards
DIN 931 (partially threaded), DIN 933 (fully threaded), ISO 4014/4017 Sizes
M3 to M36 (custom sizes available) Applications
Construction, machinery, automotive, structural projects Customization
Custom thread pitches, lengths, and finishes available
Exhibition
Factory direct supply quality trust
Customized process Intimate service
Online Consultation
Send Pictures And Samples
Factory Quotation
Place Order And Make Payment
Sample Confirmation
Delivery Complete
After-Sales Guarantee
FAQ
Are you a trading company or a manufacturer?
We are a large, leading company in the industry with decades of experience in the manufacture and development of fasteners and a recognized reputation.
What can you buy from us?
Our company mainly produces bolts GB5782 GB5783、DIN933/931、Quenching black,electroplating zincHot dip galvanized anti-corrosion,Dacromet anti-corrosion,nut GBG170DIN934、Customized special-shaped bolts and nuts.
How can we guarantee quality?
Always provide pre-production samples before mass production; always conduct a final inspection before shipment.
Do you support customized services?
Yes, we support custom CNC non-standard irregular parts.
Get More Product Information For Free
Feel free to leave us a message for any inquiry, we will respond within 24 hours.
Related Products
