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Grade 12.9 Hex Head Machine Bolt with Spring & Flat Washers Zinc Plated
Grade 12.9 Hex Head Machine Bolt with Spring & Flat Washers Zinc Plated
Grade 12.9 Hex Head Machine Bolt with Spring & Flat Washers Zinc Plated
Grade 12.9 Hex Head Machine Bolt with Spring & Flat Washers Zinc Plated
Grade 12.9 Hex Head Machine Bolt with Spring & Flat Washers Zinc Plated
Grade 12.9 Hex Head Machine Bolt with Spring & Flat Washers Zinc Plated
Specifications
Brand Name :
YB
Model Number :
Screws with washer
Certification :
ISO9001
Place of Origin :
China
MOQ :
10000
Price :
Negotiation
Payment Terms :
T/T
Supply Ability :
500Tons/month
Delivery Time :
7-25Days
Packaging Details :
Carton Box/Pallet/Customized
Standard :
DIN,ISO,JIS,ANSI,BS
Material :
Stainless Steel,etc.,copper,carbon steel,Brass
Size :
M3-M8
Finish :
Zinc Plated
Port :
NingBo or ShangHai
Surface treatment :
Plain,zinc plated,nickel plated,Chrome,passivation
Application :
transportation,Electric,military inductry etc,Wooden Products,Cabinet& furniture&hardware
Color :
Blue and White
Description

Grade 12.9 Hex Head Machine Bolt with Spring & Flat Washers Zinc Plated


1.Products Details:

This assembly is a pre-configured fastening solution combining three components:
1. Cross Recessed Hexagon Head Bolt: Features a hexagonal shank for wrench tightening and a cross-shaped recess (Phillips drive) for screwdriver compatibility, offering dual-tool accessibility.
2. Spring Washer: A helical washer that provides tension and vibration resistance, preventing loosening under dynamic loads.
3. Flat Washer: A thin circular washer placed between the bolt head and the surface, distributing pressure evenly and protecting the material from damage.


2.Key Features:

- Saves time by eliminating separate component handling during installation.
- Spring washer reduces loosening in high-vibration environments (e.g., automotive, industrial machinery).
- Flat washer prevents bolt head indentation on soft materials (e.g., wood, aluminum).
- Hex head + cross recess allow flexibility in installation tools.


3.Technical Parameters of Hex Bolt with lock and plain washer


Grade 12.9 Hex Head Machine Bolt with Spring & Flat Washers Zinc Plated


d M4 M5 M6 M8
a MAX 1.4 1.6 2 2.5
b MIN 38 38 38 38
h 0.8 1 1.6 1.6
H 2.75 3.25 4 5
dc 9 10 12 16
d2 6.78 8.75 10.71 13.64


4.Certificate Display

Grade 12.9 Hex Head Machine Bolt with Spring & Flat Washers Zinc Plated

5.Production Process

Grade 12.9 Hex Head Machine Bolt with Spring & Flat Washers Zinc Plated

6.Packaging and shipping Details

Grade 12.9 Hex Head Machine Bolt with Spring & Flat Washers Zinc Plated

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Grade 12.9 Hex Head Machine Bolt with Spring & Flat Washers Zinc Plated

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Product Detail
Brand Name :
YB
Model Number :
Screws with washer
Certification :
ISO9001
Place of Origin :
China
MOQ :
10000
Price :
Negotiation
Contact Supplier
video
Grade 12.9 Hex Head Machine Bolt with Spring & Flat Washers Zinc Plated
Grade 12.9 Hex Head Machine Bolt with Spring & Flat Washers Zinc Plated
Grade 12.9 Hex Head Machine Bolt with Spring & Flat Washers Zinc Plated

NINGBO YONGBIAO FASTENER CO.,LTD

Verified Supplier
1 Years
zhejiang, ningbo
Since 2012
Business Type :
Manufacturer, Exporter, Trading Company
Main Products :
Pan Head Screw, Bugle Head Screw, Self Tapping Screw
Total Annual :
5000000-6000000
Employee Number :
45~53
Certification Level :
Verified Supplier
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