cold heading service
Cold heading Service

Class10.9 Bolt Manufacturer, Supplier and Factory In China

Ningbo Teng Qi Fasteners stands as a leading manufacturer specializing in the production of class10.9 bolts. Leveraging advanced techniques such as cold heading and hot forging, we offer an extensive size range from M0.8 to M100, addressing a diverse spectrum of industrial needs.

Our commitment to excellence is reflected in our material choices, encompassing high-quality carbon steel and alloy steel. This ensures that our class 10.9 bolts exhibit exceptional strength and durability, meeting the stringent requirements of high-stress applications.

With a focus on surface treatments, we provide a range of finishes such as black oxide for a refined appearance, galvanization for corrosion resistance, hot-dip galvanization for augmented durability, and zinc flake coatings for prolonged protection.

Ningbo Teng Qi Fasteners, drawing on 20 years of industry leadership, delivers precision-crafted class 10.9 bolts that stand as a testament to reliability and performance across diverse industrial sectors.

Class10.9 Black Oxidation Bolt
Hex Socket Bolt Class10.9 Black

Specification of Class10.9 High Strength Bolt:

The specification of an class10.9 high strength bolt refers to its specific dimensions, thread pitch, and other mechanical properties.

Product nameClass10.9 Bolt
Size:Metric: M0.8-M100
Length:Metric: Up to 800mm
Material:Alloy Steel(42crmo,35crmo)
Strength Grade:1040 MPa (min)
Head Type:Hex Head/Socket Head/Countersunk Head/Round Head/Flat Head
Industry Standards:ISO/ASTM/ASME/DIN/UNI/JIS
Packaging:Boxes/cartons into wooden pallets
Application:Construction/Automotive/Marine/Aerospace/Food and Beverage Industry/Medical Equipment/Chemical Processing/Water Treatment

FAQ about Class10.9 Bolt:

1. Q: Are your class 10.9 high-strength bolts compliant with industry standards, and do you provide certification?
A: Yes, our bolts strictly adhere to industry standards such as ISO 898-1.

2. Q: How is the manufacturing process meticulously controlled to ensure precision and consistency in the production of class 10.9 high-strength bolts?
A: Our manufacturing process is characterized by rigorous controls at every stage, ranging from cold heading and hot forging to the final inspection. This ensures precision and uniformity in every high-strength bolt.

3. Q: What measures are implemented in your quality control during the manufacturing process to promptly detect defects or inconsistencies in class 10.9 high-strength bolts?
A: Our quality control entails regular inspections, dimensional checks, and testing of mechanical properties, enabling the prompt identification and resolution of any defects or inconsistencies.

4. Q: What surface treatment options are available for class 10.9 high-strength bolts, and how do these treatments impact performance?
A: We offer a variety of surface treatments, including black oxide for a refined appearance, galvanization for corrosion resistance, and zinc flake coatings for extended protection. These treatments enhance both functionality and durability.

5. Q: Is there a warranty or guarantee for the performance and durability of your class 10.9 high-strength bolts?

A: Yes, we stand by the quality of our bolts. For details on warranties and guarantees, please reach out to our customer service team.

Quality Control of Class10.9 Bolt:

Inspect ItemDetail
Dimensional InspectionCritical dimensions such as bolt diameter, head width, head height, bolt length and thread length are checked using calibrated measuring equipment. Inspection is carried out according to the applicable dimensional standard or customer drawings to ensure consistent fit and interchangeability.
Thread InspectionExternal threads are inspected using calibrated GO and NO-GO thread gauges to verify thread profile, pitch and dimensional conformity. Additional measurements can be performed when tighter thread tolerances or specific customer requirements apply.
Mechanical TestingMechanical properties are verified according to the specified material and strength grade. Depending on the applicable standard, testing may include tensile strength, yield strength, hardness and other required mechanical tests, with test results documented in the relevant inspection or material reports.
Surface & Coating InspectionBolt surfaces are inspected for appearance, defects, coating uniformity and other specified requirements. For coated fasteners, coating thickness and adhesion or other applicable coating characteristics can be checked according to the specified surface treatment standard.
Final Inspection & TestingBefore shipment, finished hex bolts undergo final inspection to confirm dimensions, thread quality, mechanical requirements, surface condition, marking and packaging. Inspection records and test reports can be provided according to the order specification and customer requirements.