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
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.
Overall Rating
Rating Snapshot
The following is the distribution of all ratingsAll Reviews