Why Weifeng

2003
Be Established In
8
+
Product Category
20
+
Industry Experience
100
+
Country Of Sale

PROVIDE YOU WITH A VARIETY OF FASTENERS

China Factory Black Phosphated Sheetrock Screws Phillips Bugle Head Fine Thread Drywall Screw for Gypsum Board Carbon Steel
A307 Grade A Carbon Steel Blue White UNC Threads Zinc Plated Hex Bolt Din933
Fish type barbed new free sample 5mm x 33mm nylon plastic dowel expansion green anchor wall plug m8
Marine Grade Heavy Duty Hot Galvanized CO Open Body Hook Eye Turnbuckle Drop Forged DIN 1480
Cross Recessed Phillips Flat csk Head Self Drilling Screw Zinc Plated Carbon Steel Sds TEK Din7504
G213 US Type Bow Shackle Drop Forged Carbon Steel Pin Hot-dipped Galvanized Shackle

PROFESSIONAL FASTENERS MANUFACTURER

Ningbo Weifeng Fastener Co., Ltd., established in the year 2003, is a global industry and trade combined company.Our company is specialized in developing, manufacturing, trading and providing services for fasteners and hardware tools. We are located in Yuyao, a city famous for plastic and hardware products.

Weifeng is specialized in all series of fasteners, such as anchors, screws, bolts, nuts and tools. With more than 20 years' experience in this field, Weifeng can offer products in accordance with different standards such as GB, DIN, JIS and ANSI. Our products are sold to more than 100 different countries. In addition, WF also accepts orders of special specifications as per customers' requirement.

INDUSTRIES IN WHICH OUR PRODUCTS ARE APPLIED


DIGITAL SHOWROOM

If you want to learn more about our manufacturing capabilities, you can click on the avatar in the scene, or accept my invitation!
 

WE PROVIDE YOU WITH A FULL RANGE OF SERVICES

During the new century, based on intensive trading, WEIFENG company keeps on fully developing distribution on the network.

01

Hardware maintenance tools, self-service set.

02

WEIFENG company focuses on credit and developing win-win.

03

One-to-one dedicated manager service.

04

Custom Packaging Design,Custom label logo design.

BRING YOU THE MOST COMPLETE PRODUCT PRODUCTION PROCESS

THE LATEST NEWS

2026-11-04
Bolt Grades Explained: 4.8, 8.8, 10.9 and 12.9 Compared

Metric bolt markings such as 4.8, 8.8, 10.9, and 12.9 describe mechanical property classes, not complete application ratings. This guide explains the marking system, distinguishes nominal values from specified minimum properties, and compares the four classes. It also covers preload, coatings, mating hardware, and procurement checks to help buyers specify fasteners accurately and avoid unapproved substitutions.

news_main_image_bolt_grades_explained_cover7133050238181025774.jpg
2026-11-04
Can You Replace an 8.8 Bolt With a 10.9 Bolt?

A class 10.9 bolt can replace a class 8.8 bolt in some assemblies, but higher strength alone does not establish compatibility. This guide explains how preload, tightening conditions, dimensions, mating hardware, coatings, and service loads affect the decision. It also provides a substitution checklist to help maintenance and procurement teams request the correct replacement without unintentionally changing the joint design.

news_main_image_replace_8_8_bolt_with_10_9_cover5586294128549574769.jpg
2026-11-04
Why Do Self-Drilling Screws Break? 7 Common Causes and Solutions

Self-drilling screws can break because of excessive seating torque, unsuitable drilling conditions, incorrect point selection, misalignment, material binding, or product-related problems. This guide explains seven common causes and how to investigate them. It also distinguishes broken screws from worn drill points and stripped connections, helping installers and purchasing teams identify the right corrective action before repeating the installation.

news_main_image_self_drilling_screws_breaking_cover6194038582058313345.jpg
2026-11-04
Hex Washer Head vs Pan Head Self-Drilling Screws: Which Should You Choose?

Hex washer head and pan head self-drilling screws differ mainly in drive engagement, head geometry, and bearing surface. This guide compares their installation requirements, clearance needs, and suitability for sheet metal assemblies. It also explains why drilling capacity, connection strength, and weather sealing must be checked separately, helping buyers specify the right fastener for their application.

news_main_image_hex_head_vs_pan_head_self_drilling_screw_cover5426206417258131963.jpg
news_main_image_bolt_grades_explained_cover7133050238181025774.jpg
Bolt Grades Explained: 4.8, 8.8, 10.9 and 12.9 Compared

Metric bolt markings such as 4.8, 8.8, 10.9, and 12.9 describe mechanical property classes, not complete application ratings. This guide explains the marking system, distinguishes nominal values from specified minimum properties, and compares the four classes. It also covers preload, coatings, mating hardware, and procurement checks to help buyers specify fasteners accurately and avoid unapproved substitutions.

2026-11-04
news_main_image_replace_8_8_bolt_with_10_9_cover5586294128549574769.jpg
Can You Replace an 8.8 Bolt With a 10.9 Bolt?

A class 10.9 bolt can replace a class 8.8 bolt in some assemblies, but higher strength alone does not establish compatibility. This guide explains how preload, tightening conditions, dimensions, mating hardware, coatings, and service loads affect the decision. It also provides a substitution checklist to help maintenance and procurement teams request the correct replacement without unintentionally changing the joint design.

2026-11-04
news_main_image_self_drilling_screws_breaking_cover6194038582058313345.jpg
Why Do Self-Drilling Screws Break? 7 Common Causes and Solutions

Self-drilling screws can break because of excessive seating torque, unsuitable drilling conditions, incorrect point selection, misalignment, material binding, or product-related problems. This guide explains seven common causes and how to investigate them. It also distinguishes broken screws from worn drill points and stripped connections, helping installers and purchasing teams identify the right corrective action before repeating the installation.

2026-11-04
news_main_image_hex_head_vs_pan_head_self_drilling_screw_cover5426206417258131963.jpg
Hex Washer Head vs Pan Head Self-Drilling Screws: Which Should You Choose?

Hex washer head and pan head self-drilling screws differ mainly in drive engagement, head geometry, and bearing surface. This guide compares their installation requirements, clearance needs, and suitability for sheet metal assemblies. It also explains why drilling capacity, connection strength, and weather sealing must be checked separately, helping buyers specify the right fastener for their application.

2026-11-04
Ningbo Weifeng Fastener Co., Ltd., established in the year 2003, is a global industry and trade combined company. Our company is specialized in developing, manufacturing, trading and providing services for fasteners and hardware tools.

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CONTACT US

 No.33-1, Yuli Road Yangming Street,Yuyao, Zhejiang, China
  tony@wf-fastener.com
 +86-13355841616
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