ASTM A325 A490 Heavy Hex Structural Bolt Hex Bolts Grade 8.8

Name: ASTM A325 A490 Heavy Hex Structural Bolt Hex Bolts Grade 8.8
Brand: Ningbo Kingli Fastener Co., Ltd.
SKU: 712861375

Zhejiang, ChinaNingbo Kingli Fastener Co., Ltd.

US$0.17

1,000 Pieces

Sample price:US$0.10/piece.Request sample

Product profile

Customization

Available

Material

High Strength Steel

Type

Hexagon Head

Model NO.

A325/A490

Connection

Common Bolt

Head Style

Hexagonal

Standard

ANSI

Grade

4.8/6.8/8.8/10.9

Application

Machinery, Chemical Industry, Environmental, Building

Finish

Hot Galvanizing

Size

From M6-M32, 1/4- 1 1/2" All Sizes

Sample

Contact with Us

Standard

A325/A490

Grade

4.8/6.8/8.8/10.9

Transport Package

25kg/Carton, 36carton/Pallet

Specification

M6-M48

Trademark

KLF

Origin

Ningbo, China

HS Code

7318150000

Production Capacity

800t

Key features

Customizable Sizes: Available in sizes from M6 to M32, covering 1/4 to 1 1/2 inches.

Multiple Grade Options: Offered in grades 4.8, 6.8, 8.8, and 10.9 to meet diverse strength needs.

Versatile Surface Finishes: Options include plain, oiled, black, zinc plated, and hot-dip galvanizing.

Integrated Manufacturer: Owns an 18,000 sqm facility for direct production of high-quality fasteners.

Rigorous Quality Assurance: Two-stage QA with pre-production checks and full batch inspection before shipment.

Wide Industry Application: Suitable for machinery, oil & gas, construction, shipbuilding, and energy sectors.

OEM/ODM Services: Supports customized specialty and non-standard parts with available engineering support.

Flexible Payment Terms: Accepts SWIFT TT, D/P, and LC at sight, with negotiable terms for bulk orders.

Company profile

Years of Export ExperienceExhibition ExperienceODM ServicesFlexible Customization

Ningbo Kingli Fastener Co., Ltd.

Zhejiang, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedExport Year: 15 Years CertifiedNearest Port: Ningbo PortAverage Response Time: ≤7.04h CertifiedTerms of Payment: LC, T/T

AI-Powered supplier vetting

SummaryThe supplier is an ISO9001:2015-certified fastener, machined-component, and associated-products manufacturer with stated certifications including API 20E-0066 BSL2, PED, AD2000 Merkblatt W0, and compliance with multiple international standards. It reports six production lines, six to ten quality-control staff, and annual capacities of 4,000 tons of studbolts, 5,000 tons of hex nuts, 3,000 tons of thread rods, and 4,000 tons of hex bolts. The supplier supports extensive customization, ODM, and OEM services, and reports new products during the past year. Export experience is stated as 15 years, with 90% of sales from exports and broad global markets. However, service and complaint procedures lack written records, and the supplier has no overseas warehouse, showroom, agent, branch, or offline trade-show participation. Financial evidence is insufficient for a credibility judgment.

Supplier typeThe supplier identifies itself as an ISO9001:2015-certified manufacturer of fasteners, machined components, and associated products. Its stated product range includes studbolts, hex nuts, thread rods, and hex bolts, supported by six production lines and dedicated cutting, punching, chamfering, and heat-treatment facilities.

CertificationsThe supplier reports ISO9001:2015 certification and additional certifications including API 20E-0066 BSL2, PED2014/68/EU, and AD2000 Merkblatt W0. It also states compliance with ASTM, ANSI, DIN, ISO, AS, GB, and EN standards, providing explicit evidence of broad certification and standards coverage.

After-Sales capabilityThe supplier has written procedures for service assessment, approved-supplier management, corrective and preventive actions, and complaint handling, but no written records are available for these processes. It also has no overseas warehouse, showroom, agent, branch, or offline trade-show participation, limiting demonstrated overseas service infrastructure.

R&D capabilityThe supplier reports that it introduced new products during the past year, provides ODM services, and has a stated total experience of two years for R&D engineers. It does not have an available SDK, but the reported new-product activity and ODM capability provide some evidence of innovation support.

Production capacityThe supplier reports six production lines, six to ten quality-control staff, and stated annual capacities of 4,000 tons of studbolts, 5,000 tons of hex nuts, 3,000 tons of thread rods, and 4,000 tons of hex bolts. Its facilities include cutting, punching, chamfering, and heat treatment, indicating established manufacturing capability.

Customization capabilityThe supplier explicitly offers customization from samples, customization from designs, full customization, minor customization, and flexible customization. These capabilities are stated consistently across the R&D and production information, supporting a broad customization offering.

Client casesThe supplier states that it provides OEM services for well-known brands, has exported for 15 years, derives 90% of sales from exports, and serves markets across the Americas, Europe, Asia, Africa, Australia, and the Middle East. These statements demonstrate reported customer and market experience, although no specific customer names or project details are provided.

Product Q&A

Q:Are you a trading company or manufacturer?

We are an integrated manufacturer with our own factory. Our modern 18,000 sqm (20-acre) facility enables us to produce high-quality fasteners and specialized parts.

Q:What are your packing methods?

We offer 25kg/box (36 boxes/pallet), 20kg/box (48 boxes/pallet), or 15kg/box (48 boxes/pallet), with options for fumigation or non-fumigation trays.

Q:What is your quality assurance system?

We employ a rigorous two-stage QA protocol: Pre-production dimensional checks on samples and pre-shipment full batch inspection including raw material, process, and finished product inspections to ensure compliance with standards.

Q:Which industries do your products serve?

Our products are widely used in machinery assembly, oil & gas projects, structural steel construction, shipbuilding, and wind/solar energy installation systems.

Q:What are your payment terms and trade services?

Standard terms include FOB, CIF, and EXW. Payment methods accepted are SWIFT TT transfer, D/P, and LC at sight, with negotiable options for bulk orders.