High Quality Zinc-Plated Carbon Steel Fastener Flat Head Bolts Carriage Bolt 5/16 Bolt

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Product Description

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Basic Information

Connection
Common Bolt
Head Style
Hexagonal
Standard
DIN, GB, ANSI, JIS
Grade
DIY
Color
Black
Length
10mm-3000mm
MOQ
1000PCS
Thread Type
Unc/Unf/Un
Transport Package
Wooden Cases
Specification
10MM-3000MM
Origin
China
HS Code
73181600
Capacity
6000ton/Month
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Product Description

Fastener Flat Head Bolts
Product NameHex nut
MaterialCarbon steel
ServiceOEM/ODM and fast shipping, strict quality check, free sample for standard fastener
Customize Lead Time30-60 days
StandardDIN, ASTM/ANSI JIS EN ISO, AS, GB
Steel GradeDIN: Gr.4.6, 4.8, 5.6, 5.8, 8.8, 10.9, 12.9; SAE: Gr.2, 5, 8;
Production ProcessM2-M30: Cold Forging, M30-M100: Hot Forging, Machining and CNC for Customized fastener
FinishingBlack Phosphated, Grey Phosphated, Blue-white zinc, White zinc
Since its establishment in 1996, our company has blossomed into a dynamic hub that seamlessly integrates warehousing, processing, and meticulous inspection, all thanks to over twenty years of dedicated effort and relentless innovation. Our vibrant team of over 100 skilled professionals, including 10 highly experienced senior technicians, underpins our enduring partnerships with major hardware enterprises both domestically and internationally. Strategically situated in a location that offers unparalleled transportation convenience, our expansive 30,000-square-meter state-of-the-art production facility epitomizes efficiency. It boasts a comprehensive, in-house production line that spans from wire drawing, annealing, cold heading to quenching, and tempering—each process rigorously implemented to fulfill our diverse customer needs with precision and care.

Our cutting-edge independent inspection laboratory is armed with an extensive range of state-of-the-art testing equipment. This robust infrastructure enables us to execute a comprehensive array of technical assessments, encompassing material chemical analysis, metallographic scrutiny, mechanical property evaluations, corrosion resistance testing, and precision measuring tool calibrations. This exhaustive testing regime not only ensures uncompromising quality control but also drives continuous product enhancement, setting new benchmarks in industry standards.
Logistics
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Frequently Asked Questions

Q1: Are you a manufacturer or trading company?
A1: We are a professional manufacturer with 30 years of experience. We accept OEM and ODM according to your needs and assure competitive pricing and high quality.
Q2: Can you offer me samples?
A2: Yes, we can offer samples for you to test and check the quality of our fasteners.
Q3: How does your factory handle quality control?
A3: We have a professional QC team to inspect each item from the production links to the final packaging stage.
Q4: What is the estimated delivery time?
A4: Normally, it will take 30-35 days after receiving your deposit, depending on the order volume and customization requirements.
Q5: What are your terms of payment?
A5: Our standard terms are T/T 30% as a deposit, and the remaining 70% balance before delivery.
Q6: What advantages do you offer?
A6: We provide strict quality control through our dedicated QC department, protected shipping for faster delivery, and a wide production range including metal box systems, hinges, and slides.

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