What are the available grades for these screws?

Available grades include 4.8, 8.8, 10.9, and 12.9.

Which standards do your products comply with?

Our products comply with DIN, GB, ANSI, BSW, JIS, GOST, and UNS standards.

What is the lead time during peak season?

The peak season lead time is one month, while the off-season lead time is within 15 workdays.

DIN653 Large Flat Knurled Head Screws High Precision CNC Machined

Name: DIN653 Large Flat Knurled Head Screws High Precision CNC Machined
Brand: Ningbo Yongbiao Fastener Co., Ltd
SKU: 2223720055

Zhejiang, ChinaNingbo Yongbiao Fastener Co., Ltd

US$0.10-0.20

10,000 Pieces

Sample price:US$0.05/piece.Request sample

Product profile

Customization

Available

Material

Stainless Steel

Type

Round Head

Model NO.

DIN653

Groove

Flat

Connection

Common Bolt

Head Style

Round

Standard

DIN, GB, ANSI, BSW, JIS, GOST

Grade

8.8

Delivery

7-20days

Pay Term

Tt 30% Deposit

Certificate

ISO9001

Packaging Details

Customization

Transport Package

Cartonboxes and Pallets

Specification

8.8

Trademark

Origin

China

HS Code

7318159090

Production Capacity

500ton/Month

Key features

Tool-Free Hand Tightening: Wide flat head with deep diamond knurling ensures exceptional grip and torque transmission without tools.

High Precision CNC Machined: Manufactured in strict compliance with DIN 653 specifications for dimensional accuracy and interchangeability.

Ergonomic Slip-Resistant Design: Large knurled head designed for comfortable operation even when wearing gloves.

Versatile Material Options: Available in Stainless Steel (A2/A4), Carbon Steel, and Copper with various plating finishes.

Fast Urgent Delivery: Urgent orders delivered in 7-15 days; spot goods available for same-day warehouse delivery.

Customization from Samples: OEM and ODM services available with customization options based on customer samples or designs.

Wide Standard Compliance: Meets DIN, GB, ANSI, BSW, JIS, GOST, and UNS standards for global interchangeability.

Robust Surface Finishes: Offers Natural, Black, Zinc, Nickel, Dacromet, Polished, and Hot-dip galvanized finishes.

Company profile

Importers and ExportersFast DeliveryQuality AssuranceProduction Process Visualization

Ningbo Yongbiao Fastener Co., Ltd

Zhejiang, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs CertifiedExport Year: 1 Year CertifiedNearest Port: Ningbo Port, Shanghai PortAverage Response Time: ≤0.91h

AI-Powered supplier vetting

SummaryThe supplier is described as a medium-sized fastener manufacturer integrating R&D, production, and sales, with more than 50 employees, over 50 production machines, more than 10 testing machines, and four production lines. It provides OEM services for well-known brands and supports customization from samples and designs. Quality and service-management procedures are documented and followed, including finished-product inspection, supplier assessment, corrective and preventive action, and complaint handling. However, no SDK is available, and no overseas warehouses, showrooms, agents, branches, or offline trade-show participation are reported. Overseas service coverage is recorded as zero countries, while export-trade experience is represented by three experienced staff. Production quantity reconciliation is not continuously performed for every batch or production run. Financial records are identified for 2021–2023, but the provided information does not establish financial strength.

Supplier typeThe supplier operates as a fastener manufacturing enterprise integrating R&D, production, and sales. Its stated business scope also includes wholesale, motorcycle and bicycle parts, wire and cable management, instruments, pumps, household-appliance parts, and metal materials, while its primary market is listed as domestic.

After-Sales capabilityThe supplier has written and followed procedures for service assessment, corrective and preventive actions, and customer complaints. However, it reports no overseas warehouse, showroom, agent, branch, or offline trade-show capability, and overseas service coverage is recorded as zero countries, limiting evidence of strong international after-sales support.

Production capacityThe supplier reports four production lines, more than 50 production machines, more than 10 testing machines, over 50 employees, and screw output of 4,000 tons. Finished-product inspection instructions are uniformly followed, but continuous quantity reconciliation for each batch or production run is not performed.

Customization capabilityThe supplier explicitly supports customization from samples and designs and provides OEM services for well-known brands. These capabilities directly support customer-specific product development and manufacturing.

Product Q&A

Q:What is the delivery time for urgent orders?

Urgent delivery time is 7-15 days, while normal delivery takes 20-25 days. Spot goods can be delivered to the warehouse on the same day.

Q:What materials are available for these screws?

We offer Stainless Steel (A2/AISI 304, A4/AISI 316), Carbon Steel, and Copper. Finishes include Zinc plating, Black oxide, Nickel, and Hot-dip galvanized.

Q:Do you offer OEM and ODM services?

Yes, we provide OEM and ODM services with customization options available from both samples and designs.

Q:What is the minimum order quantity?

The minimum order quantity is 10,000 pieces.

Q:What payment terms do you accept?

We accept LC, T/T, D/P, PayPal, Western Union, and small-amount payments.