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Carbon Steel Hex Socket Head Cap Screw DIN912 Partial Thread Zinc Plated Class 4.8 8.8 10.9 12.9
quality Carbon Steel Hex Socket Head Cap Screw DIN912 Partial Thread Zinc Plated Class 4.8 8.8 10.9 12.9 factory
quality Carbon Steel Hex Socket Head Cap Screw DIN912 Partial Thread Zinc Plated Class 4.8 8.8 10.9 12.9 factory
quality Carbon Steel Hex Socket Head Cap Screw DIN912 Partial Thread Zinc Plated Class 4.8 8.8 10.9 12.9 factory
quality Carbon Steel Hex Socket Head Cap Screw DIN912 Partial Thread Zinc Plated Class 4.8 8.8 10.9 12.9 factory
quality Carbon Steel Hex Socket Head Cap Screw DIN912 Partial Thread Zinc Plated Class 4.8 8.8 10.9 12.9 factory

Carbon Steel Hex Socket Head Cap Screw DIN912 Partial Thread Zinc Plated Class 4.8 8.8 10.9 12.9

Carbon Steel Hex Socket Head Cap Screw DIN912 Partial Thread Zinc Plated Class 4.8 8.8 10.9 12.9
country of origin
Zhejing,China
Brand Name
XC
PRODUCT MODEL
M3-M100
MOQ
1000kg
unit price
$0.5-1/PCS
payment method
L/C,D/A,D/P,T/T
Supply Capacity
Monthly Capacity: 500 tons
Product Details
Highlight:

DIN912 Hex Socket Head Cap Screw

,

Carbon Steel Hex Head Cap Screw

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Zinc Plated hex cap screws
Material: Stainless Steel 304/316
Grade: A2-70, A2-80, A4-80,4.8,8.8,10.9,12.9
Size: DiameterM3-M100length Is From 6-1000mm
Product Name: Hex Socket Head Cap Screw
Product Description
Detailed Specifications & Features
DIN912 Partial Thread Carbon Steel Class 4.8 8.8 10.9 12.9 Zinc Plated Hex Socket Head Cap Screw
DIN912 is a standardized German industrial specification for hex socket head cap screws. The partial thread version features thread only on the tail end with a full smooth shank on the upper body, differing from full-thread DIN912 screws. This product series is made of high-quality carbon steel, available in 4.8, 8.8, 10.9 and 12.9 mechanical property grades, with zinc-plated surface treatment for anti-corrosion performance.
Specification Details
Measurement System Metric, Imperial (Inch), Other
Grade Class 4.8/6.8/8.8/10.9/12.9
Nut Shape Round
Thread Coverage Fully Threaded
Thread Direction Square
Finish Plain Zinc Plated, Black Oxide, Galvanized, Zinc-Flake Coated, Chrome Plated, Yellow Zinc
Application Heavy Industry, Mining, Water Treatment, Healthcare, Retail Industry, Food & Beverage
Hole Diameter D3-D100
Body Type Round
Intended Use Nut for Pipe Nipple (Gas Installation)
Place of Origin Zhejiang, China
Model Number DIN912
Nut Type Hex Socket Head Cap Screw
Standard DIN912
Size M3-M100
Finish Black/Zinc Plated/Hot Dip Galvanized
Material Low Carbon Steel/Medium Carbon Steel/Alloy Steel/Stainless Steel
Delivery Time Normally 30-40 days
Type Precision Nonstandard Parts (OEM Service)
Quality 100% Professional Test
Product Name Hex Socket Head Cap Screw

Hex Head Cap Screw offers cost-effective, temporary black finish for indoor, dry, decorative applications where the screw will never be handled or touched by tools.

Hex Socket Head Cap Screws are used across nearly every industry that builds machinery, structures, or equipment.

For high-strength, clean-looking bolts that can be tightened in tight spaces, Allen Socket Cap Head Screw is the go-to fastener.

Carbon Steel Grade Differences
  • Class 4.8: Low-carbon steel material with tensile strength ≥400MPa. Features good toughness, low cost and excellent processing performance. Suitable for low-load, general fixed assembly scenarios such as ordinary furniture, light machinery and non-structural equipment.
  • Class 8.8: Medium-carbon steel with quenched and tempered heat treatment, tensile strength ≥800MPa. Balances strength and cost, making it the most versatile grade. Widely used in general mechanical equipment, automotive non-key components and conventional industrial assembly.
  • Class 10.9: High-strength carbon steel after precise heat treatment, tensile strength ≥1000MPa. Features outstanding fatigue resistance and structural stability. Applicable for medium-heavy load equipment, automotive core parts, hydraulic machinery and engineering machinery assembly.
  • Class 12.9: The highest-strength carbon steel grade in this series, tensile strength ≥1200MPa. With extreme hardness and tensile resistance, exclusively used for high-load, high-precision and high-fatigue working scenarios such as precision machinery, mold equipment and heavy industrial structural fastening.
Quality Control Standards
Based on professional manufacturing experience and industrial quality specifications, we implement full-process quality control:
  • Raw materials use qualified carbon steel with stable chemical composition to ensure consistent mechanical properties
  • Heat treatment processes for 8.8-12.9 grades are precisely controlled to avoid uneven hardness and insufficient strength
  • Thread rolling processing ensures standard thread pitch and smooth thread surface for accurate assembly
  • Zinc-plating thickness and adhesion are strictly inspected to guarantee anti-corrosion effect
  • Finished products undergo random sampling of mechanical performance tests and dimension tolerance detection
Installation Guidelines
Professional installation specifications ensure optimal service performance:
  • Match the corresponding strength grade according to equipment load requirements
  • Use a standard hex socket wrench for installation to prevent socket damage
  • Control tightening torque strictly according to screw strength standards
  • Avoid installation in strong acid and alkali corrosive environments for conventional zinc-plated products
  • Ensure the smooth shank is fully fitted with the mounting hole for optimal positioning and shear resistance
About Our Supplier
Jiaxing Xinchuang Hardware Co., Ltd.
Your Trusted Global Partner for Premier OEM Fasteners and Custom Industrial Solutions
Established in 2025, Xinchuang has evolved into a leading global manufacturer dedicated to providing high-quality fasteners and industrial components at competitive prices. With over a decade of industry experience and a state-of-the-art production facility, we specialize in delivering both standard and non-standard solutions tailored to the rigorous demands of clients worldwide.
Our Expertise and Capabilities
We are a vertically integrated manufacturer covering production, plating/finishing, and global export. Our extensive product capabilities meet both imperial and metric standards across a wide range of sizes (M1 to M100) and grades (4.8, 6.8, 8.8, 10.9, 12.9).
Core Manufacturing Competencies
  • Standard Fasteners: Screws, Nuts, Washers, Anchors, Pins, Keys, Threaded Rods, and Socket Screws
  • Materials & Finishes: High-grade Stainless Steel, Carbon Steel, with durable Zinc, Plain, and Galvanized finishing options
Customization and R&D Strengths
What differentiates Xinchuang is our robust OEM/ODM capability. We operate primarily on a made-to-order basis, ensuring every batch is freshly manufactured to your exact specifications. Backed by a dedicated in-house R&D department and design team, we excel at engineering specially designed fasteners for unique project needs.
Reliable Production and Service
We understand that project success relies on component caliber and timely delivery. Through efficient production management, we ensure reliable delivery times for production orders (typically 30-40 days). We are committed to providing extensive cost savings and supply chain security for our customers through consistent quality and dependable lead times.
Tags:
Self Drilling Screws
Self Tapping Screws
Stainless Steel Self Drilling Screw
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