M20 Standard Galvanized Carbon Steel Bolts Dln933 Hex Head Bolts Grade 8.8 Zinc Plated Finish
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Product Highlights
- 30 Years Fastener Experience: Trading company with over 30 years of experience in fasteners and cooperated factories.
- Customization from Designs: We can produce special customized products according to customers' drawings and designs.
- Professional Engineering Support: Professional engineers available to assist with screw selection and create necessary drawings.
- 100% Quality Inspection: Each product is checked by packing staff before sending out to ensure quality standards.
- Free Standard Samples: Free samples provided for standard products; sample fee for custom items is deductible from orders.
- Wide Application Range: Suitable for machinery, chemical industry, environmental projects, and building construction.
- Multiple Payment Options: Supports LC, T/T, PayPal, D/P, Western Union, and small-amount payments for flexibility.
- DIN Standard Compliance: Products comply with DIN and GB standards, featuring Grade 8.8 strength and zinc plating.
Product Attributes
- Customization
- Available
- Material
- Carbon Steel
- Type
- Hexagon Head
- Model NO.
- GBT5783 DIN933
- Connection
- Common Bolt
- Head Style
- Hexagonal
- Standard
- DIN, GB
- Grade
- 8.8
- Application
- Machinery, Chemical Industry, Environmental, Building
- Finish
- Hot Galvanizing
- Selling Units
- Multiple Ot1 Batch 41X29X11cm
- Transport Package
- Box
- Specification
- M1.6-M64
- Trademark
- shuojia
- Origin
- Jiangsu, China
Shipping
- Shipping Cost:
- Contact the supplier about freight and estimated delivery time.
Online Trading Protection
- Payment Guarantee
-
Platform-protected payments with refund support for eligible order issues.
- Platform Logistics
- Clearer shipment tracking with platform-supported logistics.
- Inspection Service
- Optional pre-shipment inspection for quality and quantity checks.
- After-Sales & Dispute Handling
- Platform-assisted dispute resolution, including refunds or returns when applicable.
Only orders placed and paid through Made-in-China.com Secured Trading are eligible for payment protection and the corresponding platform services.
Product Images of M20 Standard Galvanized Carbon Steel Bolts Dln933 Hex Head Bolts Grade 8.8 Zinc Plated Finish
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Product Description

Thread Size | M1.6 | M2 | M2.5 | M3 | (M3.5) | M4 | M5 | ||
d | |||||||||
P | Pitch | 0.35 | 0.4 | 0.45 | 0.5 | 0.6 | 0.7 | 0.8 | |
a | max | 1.05 | 1.2 | 1.35 | 1.5 | 1.8 | 2.1 | 2.4 | |
min | 0.35 | 0.4 | 0.45 | 0.5 | 0.6 | 0.7 | 0.8 | ||
c | max | 0.25 | 0.25 | 0.25 | 0.4 | 0.4 | 0.4 | 0.5 | |
min | 0.1 | 0.1 | 0.1 | 0.15 | 0.15 | 0.15 | 0.15 | ||
da | max | 2 | 2.6 | 3.1 | 3.6 | 4.1 | 4.7 | 5.7 | |
dw | Grade A | min | 2.27 | 3.07 | 4.07 | 4.57 | 5.07 | 5.88 | 6.88 |
Grade B | min | 2.3 | 2.95 | 3.95 | 4.45 | 4.95 | 5.74 | 6.74 | |
e | Grade A | min | 3.41 | 4.32 | 5.45 | 6.01 | 6.58 | 7.66 | 8.79 |
Grade B | min | 3.28 | 4.18 | 5.31 | 5.88 | 6.44 | 7.5 | 8.63 | |
k | Nominal Size | 1.1 | 1.4 | 1.7 | 2 | 2.4 | 2.8 | 3.5 | |
Grade A | max | 1.225 | 1.525 | 1.825 | 2.125 | 2.525 | 2.925 | 3.65 | |
min | 0.975 | 1.275 | 1.575 | 1.875 | 2.275 | 2.675 | 3.35 | ||
Grade B | max | 1.3 | 1.6 | 1.9 | 2.2 | 2.6 | 3 | 3.74 | |
min | 0.9 | 1.2 | 1.5 | 1.8 | 2.2 | 2.6 | 3.26 | ||
k1 | Grade A | min | 0.68 | 0.89 | 1.1 | 1.31 | 1.59 | 1.87 | 2.35 |
Grade B | min | 0.63 | 0.84 | 1.05 | 1.26 | 1.54 | 1.82 | 2.28 | |
r | min | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.2 | 0.2 | |
s | max=nominal size | 3.2 | 4 | 5 | 5.5 | 6 | 7 | 8 | |
Grade A | min | 3.02 | 3.82 | 4.82 | 5.32 | 5.82 | 6.78 | 7.78 | |
Grade B | min | 2.9 | 3.7 | 4.7 | 5.2 | 5.7 | 6.64 | 7.64 | |
*Customization | |||||||||











About the Supplier
This supplier has been audited by SGS. Verify the report on the official SGS website with ID "QIP-ASI254954". Items marked "" are certified.
Company Profile
Yangzhou Shuojia Electromechanical Co., Ltd. is located in the beautiful and culturally rich Guangling New Town of Yangzhou. The unique geographical advantages provide a solid foundation for the company's stable development. After years of deep involvement in the fastener industry, we have accumulated profound industry expertise and rich practical experience, firmly establishing a foothold in the industry and moving forward steadily.
With a clear and firm development direction, we balance standardized supply and customized services to fully meet market demands:
Standard business: Relying on a mature and extensive sales network, we mainly focus on various high-end fastener products. These products are of excellent quality and are suitable for multiple core fields such as automobiles, wind power, and heavy machinery. They also cover scenarios such as the assembly of intelligent equipment and automation systems, warehouse engineering, steel structure engineering, and the construction of various global projects. They can meet the procurement needs of large quantities and high quality.
Customized services: We have deeply specialized in non-standard fastener customization processing. By leveraging advanced technologies and exquisite craftsmanship, we provide tailor-made full-process one-stop solutions for customers with special requirements, flexibly adapting to the diverse and personalized demands of the market.
"Attitude determines everything, and details determine success or failure. " This philosophy is deeply rooted in the core of Shuojia's management team. We adopt a rigorous, meticulous and responsible attitude to control every detail throughout the entire operation process; With the business slogan of "High quality, excellent price, all varieties", we actively build deep strategic partnerships with major enterprises, and work together to achieve mutual benefit and win-win results.
We uphold the spirit of being as resilient as a "screw", being ordinary yet crucial. We are committed to creating a one-stop fastener supply chain service for end customers, striving to grow into a key player in the industry, leading the development direction of the fastener industry, and contributing solid strength to the stability and prosperity of the global industrial system.
The company's founder has been deeply involved in the fastener industry for 30 years. With rich industry experience and accumulated resources, he has established the company's unique supply chain network, achieving the core competitive advantage of "the best price and the highest product quality", providing customers with high-quality and cost-effective products, and strengthening the company's core competitiveness.
About Our Factory & Business Background
-
Business Type
- Trading Company
- Address
- No. 3, Haiwo Road, Yangzhou, Jiangsu, China
-
Plant Area
- 1135 square meters
-
Number of Employees
- 14
-
Registered Capital
- 1,000,000 RMB
-
Terms of Payment
- LC, T/T, PayPal, D/P, Western Union, Small-amount payment
-
International Commercial Terms(Incoterms)
- CFR, FOB, CIF, EXW
-
Average Lead Time
-
Peak Season Lead Time: within 15 workdays
Off Season Lead Time: within 15 workdays -
Nearest Port
- Shanghai Port
-
Minimum Order Quantity
- 1000 Pcs
-
Supply Chain Partners
- 50
Our Production Capability & Technical Expertise
-
Main Products
- Hex Nut, Flat Washer, Screw
-
QA/QC inspectors
- 1 people
-
Inspection Type for Finished Products
- 100% inspection(Visual inspection)
-
Inspection Method for Finished Products
- Finished product checked by packing staff
-
Customization Options
- Customization from Samples, Customization from Designs
-
ODM Service Available
- Yes
-
R&D Engineers
- 1 people
-
Traceability of Raw Materials
- Yes
Our Industry Experience & Global Business Record
-
Year of Establishment
- 2019-12-03
-
Export Year
- 1 Year
-
Main Markets
- Europe, Southeast Asia/ Mideast, Domestic, South Asia
-
Repeat Buyers Choice
- < 10%
-
Number of Foreign Trading Staff
- 2
-
Overseas Agent/Branch
- No
-
New Products Launched in Last year
- Yes
Our Certifications, Standards & Industry Recognition
-
Cooperated with Fortune 500
- No
FAQ
- Are you a manufacturer or trading company?
- We are a trading company with cooperated factories and over 30 years of fastener experience.
- Do you provide free samples?
- Yes, we provide free samples for standard products. For customized products, there is a charge, but it is deducted from the official order.
- Can you produce custom products based on drawings?
- Yes, in addition to standard fasteners, we can produce special customized products according to customers' drawings.
- Do you offer engineering assistance?
- Yes, we have professional engineers to help with screw selection and can make drawings if necessary.
- What is the Minimum Order Quantity (MOQ)?
- The Minimum Order Quantity is 1000 Pcs.
- What are the lead times for production?
- The average lead time is within 15 workdays for both peak and off-season periods.
- What payment terms do you accept?
- We accept LC, T/T, PayPal, D/P, Western Union, and small-amount payments.
- How do you ensure product quality?
- We have a quality inspection department that checks each product before sending it out to ensure no quality issues.
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