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Grade 10.9 high-strength countersunk hexagon socket screws with flat-head design for heavy-load applications

Grade 10.9 high-strength countersunk hexagon socket screws with flat-head design for heavy-load applications

Product Details:
Place of Origin: china
Brand Name: huayuanxing
Certification: rohs
Model Number: KM
Detail Information
Place of Origin:
china
Brand Name:
huayuanxing
Certification:
rohs
Model Number:
KM
Product Name:
Metal Screw
Origin:
CHINA
Specifications:
Various Sizes Are Available.
Conventional Packing:
Plastic Bag+cardboard Box
Certificate:
ISO900;ROHS,REACH
Surface Coating:
Carbon Steel
Highlight:

High Light

Highlight:

Grade 10.9 high-strength countersunk hexagon socket screw

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Countersunk head flat-head screw

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Hexagon socket drive high-strength bolt

Trading Information
Minimum Order Quantity:
999pcs
Price:
negotiate
Packaging Details:
Plastic bag+cardboard box
Delivery Time:
5-8 work days
Payment Terms:
D/A,L/C,D/P,T/T,Western Union,MoneyGram
Supply Ability:
500000 pieces per week
Product Description
Grade 10.9 High-Strength Black Countersunk Hexagon Socket Screws
Available in sizes M2, M3, M4, M5, M6, M8, M10, and M12, these flat-head screws and bolts deliver exceptional performance in demanding industrial applications.
Key Performance Advantages
  • Ultra-High Fastening Strength: Grade 10.9 rating provides excellent torsion and shear resistance. Made from medium carbon steel or alloy steel with quenching and tempering heat treatment, achieving tensile strength of 1000MPa and yield strength of 900MPa - over 1.2 times stronger than standard 8.8 grade screws.
  • Flat and Concealed Countersunk Head: Conical head design fully embeds into workpiece counterbores, creating a flush surface finish that prevents operator injury and equipment damage while ensuring visual neatness for decorative panels and precision equipment casings.
  • Precise Hexagon Socket Drive: Over 90% wrench fit enables efficient high-torque transmission without slipping or wear. Hidden socket design prevents dust and oil contamination, extending screw lifespan while allowing easy access in narrow spaces.
Technical Specifications
Brand Huayuanxing
Product Name High-strength Countersunk Hexagonal Socket Screw
Material Carbon Steel
Specifications M2-M16
Standard KM
Product Packaging OPP Bag/Carton
Product Images
Manufacturer Profile
Shenzhen Huayuanxing Precision Hardware Co., Ltd. specializes in the development, production, and sales of screw fasteners with 20 years of industry experience. The company's products are characterized by precision, miniaturization, and durability.

Manufacturing capabilities include:
  • 8,000+ square meter factory with 4,000+ square meter warehouse
  • 3,000+ tons of stock inventory
  • 250+ precision production equipment including cold heading machines, thread rolling machines, and thread milling machines
  • Production capacity for small screws with 1mm outer diameter and 3mm length
  • Average daily production capacity of 20 million pieces
  • Complete quality inspection equipment including salt spray testing machines and 2D imaging detectors
  • 50+ employees including 8 engineering technicians with 20 years of industry experience

Ratings & Review

Overall Rating

5.0
Based on 50 reviews for this supplier

Rating Snapshot

The following is the distribution of all ratings
5 stars
100%
4 stars
0%
3 stars
0%
2 stars
0%
1 stars
0%

All Reviews

L
lonely
Afghanistan Jan 1.2026
Manufacturers with good quality, sufficient quantity, standard size, satisfactory service and high cost performance. It is easier to use than the screws I bought in other stores before, so I will buy screws here in the future. I am a reliable merchant.
G
gulugul
Andorra Dec 30.2025
I bought it many times. I bought it as a sample. It fits. I bought it again.