Heavy Duty Hexagon Head Bolts DIN 931 for Industrial Applications

Product Description

 

Product Description

Product Name:	Hexagon Head Bolts Grades Partially Threaded DIN 931-1 for Heavy Duty Applications
Standard:	DIN 931
Material:	Carbon steel and stainless steel
Size:	Reference standards and according to customer requirements
Finished:	Zinc Plated,Hot Dip Galvanized Steel,Dacromet,Nickel Plated,Black Oxide,Plain
Delivery time:	Normally in 30-40 days.

 

 

Ningbo Yinzhou Sokun Import & Export Co., Ltd. is located in Ningbo, a major port city with excellent transportation infrastructure.

Main Products: Non-standard parts, fasteners, stamping parts, and machined parts.

We have established long-term business relationships with professional clients across North America, Europe, Australia, and Asia.

Guided by our core values of "Sincerity, Dedication, Creativity, and Innovation", we adhere to a quality-driven development strategy** under scientific management to ensure sustainable growth and profitability.

Q1. Corporate Profile & Manufacturing Capabilities

A1:
Established in 2009, we are an ISO-certified fastener manufacturer and solar mounting system solutions provider headquartered in Ningbo, China. With comprehensive R&D capabilities and vertically integrated production facilities, we serve global markets including North America, Oceania, China Domestic Market, Eastern Europe, Southeast Asia, South America, Africa, and the Middle East. Our expert engineering teams specialize in precision fastener development, lean manufacturing, multi-stage quality assurance protocols, and after-sales service management.

Q2. Quality Assurance System

A2:
We implement a rigorous two-stage quality assurance protocol:
Pre-production sampling with dimensional verification
Full batch inspection including torque testing, salt spray analysis, and material certification prior to container loading
This dual-check system ensures consistent compliance with ASTM/ISO standards.

Q3. Core Product Portfolio

A3: 
Our manufacturing expertise covers:
• Industrial Fastening Solutions:
Hex bolts, machine screws, locking nuts, flat washers, threaded rods, blind rivets, retaining clips, and precision-engineered CNC-machined components
• Solar Energy Installation Systems:
Ground-mounted & rooftop solar racking systems, PV module mounting accessories, UL-certified cable management solutions, and corrosion-resistant ABS combiner box mounting brackets

Q4. Can you provide a sample?

A4:
✓ Free samples available (1-3 pcs standard specification)
✓ Express options: DHL/UPS/FedEx (customer's account)
✓ Prototyping service: Customized samples within 15 working days
✓ Note: Sample cost refundable upon bulk order confirmation

Q5. Payment Terms & Trade Services

A5: Standard commercial terms:
30% T/T deposit with 70% balance payable against Bill of Lading copy
For orders under $1,000 USD, we recommend full advance payment to minimize international transaction fees
Acceptable payment instruments: SWIFT transfer, LC at sight (negotiable for bulk orders)