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Black High Strength Hex Socket Bolt/Galvanized / Stainless Steel Round Head Hex Socket Bolt
US$0.01-0.10
5,000 Pieces
Sample price:US$0.10/piece.Request sample
Product profile
Customization
AvailableMaterial
Stainless SteelType
Round HeadModel NO.
M3-M20Connection
Hinged BoltsHead Style
RoundStandard
DIN, ANSI, GB, JIS, BSW, GOSTGrade
12.9Application
Machinery, Chemical Industry, Environmental, BuildingFinish
PolishingCarbon Steel Grade
4.8 6.8 8.8 10.9 12.9Bolt Material
Carbon Steel, Stainless Steel, High Carbon SteelSurface Coating
Galvanized / Hot DIP Galvanized / BlackTransport Package
Export PackingSpecification
Can be customizedTrademark
SANJUOrigin
HebeiHS Code
7318151090Production Capacity
100000000Key features
High Strength Grades: Available in grades 4.8 to 12.9, with 8.8-12.9 classified as high-strength bolts.
Premium Materials: Constructed from Carbon Steel, Stainless Steel (SUS202, 304, 316), and High Carbon Steel.
Diverse Surface Coatings: Options include Galvanized, Hot DIP Galvanized, and Black finishes for corrosion resistance.
Comprehensive Standards: Meets DIN, ANSI, GB, JIS, BSW, and GOST international and national standards.
Wide Size Range: Specifications available from M1.4 to M30 with various thread pitches and dimensions.
OEM & ODM Services: Full customization support available for manufacturing and design requirements.
Versatile Applications: Ideal for machinery, chemical industry, environmental projects, and building construction.
Fast Delivery: Off-season lead time within 15 workdays; peak season lead time one month.
Company profile

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service AvailableExport Year: 2019-04-04 CertifiedNearest Port: Tianjin PortAverage Response Time: ≤1.71h CertifiedTerms of Payment: T/T
AI-Powered supplier vetting
SummaryQINGHE SANJU TRADING CO., LTD. is a China-based limited company established in 2019, operating from Hebei with 15 employees. The supplier describes itself as an integrated manufacturing and trading company and reports four production lines, a 1,200 m² manufacturing area, milling cutter output of 3,000,000 pieces, and export activity across Africa, Southeast Asia/Mideast, Europe, and North America. It states that 71%–90% of sales are exports and offers FOB, CIF, and CFR quotation terms. The supplier claims export experience, after-sales service, broad product coverage, and cooperation with customers in multiple countries. However, its management-system certification is listed as NIL, and the available information does not substantiate specific customer references, formal innovation programs, or detailed customization capabilities.
Supplier typeThe supplier is identified as a combined business entity and describes itself as an integrated industry-and-trade company providing manufacturing, sales, and purchasing follow-up services. This indicates a hybrid manufacturing and trading model rather than a pure trading-only operation.
CertificationsThe supplier’s certification of management systems is explicitly recorded as NIL. Therefore, no management-system certification is evidenced in the provided information.
After-Sales capabilityThe supplier explicitly claims good after-sales service and describes a range of follow-up services intended to support procurement, distribution, and savings management requirements. These statements provide positive evidence of an after-sales service offering, although no service process or performance metrics are supplied.
Production capacityThe supplier reports an integrated manufacturing-and-sales operation, a 1,200 m² manufacturing area, four production lines, and annual milling cutter output of 3,000,000 pieces. It also states lead times of within 15 working days during off-peak periods and one month during peak periods, providing explicit evidence of established production capacity and defined fulfillment timelines.
Product Q&A
Q:What material options are available?
A:
We offer Carbon Steel, Stainless Steel (SUS202, 304, 316), and High Carbon Steel.
Q:What are the available strength grades?
A:
Grades range from 4.8 to 12.9. Grades 8.8 and above are considered high-strength bolts.
Q:What surface coating options do you provide?
A:
Coatings include Galvanized, Hot DIP Galvanized, and Black finishes.
Q:Which standards do your bolts meet?
A:
Our products comply with DIN, ANSI, GB, JIS, BSW, and GOST standards.
Q:Do you offer OEM and ODM services?
A:
Yes, we provide both OEM and ODM services for customized requirements.
Send Inquiry
*To:
QINGHE SANJU TRADING CO., LTD.
QINGHE SANJU TRADING CO., LTD.*Content:
Supplier replies will be sent to your registered email
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