Heavy-Duty Hexagon Socket Screw with Full Thread for Manufacturing

• Customization: Available
• Material: Stainless Steel
• Type: Round Head
• Model NO.: 1-1
• Connection: Common Bolt
• Head Style: Round
• Standard: DIN
• Grade: 4.8
• Application: Building
• Use: Fastening Connection
• Thread Type: Full Thread
• Applicable Industries: Construction, Manufacturing
• After-Sales: Three Months
• Transport Package: Container
• Specification: 1-100
• Trademark: Huilin
• Origin: Handan, Hebei
• HS Code: 0101101010
• Production Capacity: 50000

Product Description

Delve into the world of precision with the Cup head hexagon screw, also known as the cylindrical head hexagon screw - a quintessential mechanical fastener that stands as a cornerstone in engineering excellence. Discover its features below:

1, Appearance and Structure

• Head shape: Crafted with precision, the cup head hexagonal screw boasts a cylindrical head featuring an ingeniously designed hexagonal hole at its crown. This design seamlessly aligns with a hex wrench, ensuring effortless installation.

Side design: The screw head's subtle curvature adds a touch of elegance to its appearance, while also enhancing user experience by providing a superior grip during installation.

Internal hexagonal hole: The depth of the internal hexagonal hole is meticulously calibrated to match the head's height, offering a firm grip that secures the wrench and minimizes the risk of slipping.

2, Dimensions and Specifications

Head size: Designed for optimal performance, the head diameter of cup head screws slightly exceeds the thread by 2-3 millimeters, effectively preventing tool slippage. The head height ranges between 0.6 to 1 times the thread's diameter, ensuring perfect balance.

Thread specifications: Adhering to both metric and imperial systems, the threads stand as a testament to versatility. For instance, metric thread M6 × 1.0 signifies a diameter of 6 millimeters with a 1-millimeter pitch, whereas British specifications like 1/4 "-20 denote a 1/4 inch diameter with 20 teeth per inch.

Common specifications: Available in a plethora of sizes, metric specifications range from M3 to M20 with lengths extending from 5mm to 200mm. Imperial specifications offer equally diverse options to cater to varying needs.

3, Material and Strength

Material selection: These screws redefine reliability, crafted from a variety of robust materials such as carbon steel, stainless steel (304, 316), and alloy steel (SCM435), each tailored to meet specific demands.

Carbon steel: Economical yet effective, carbon steel is ideal for general environments with its acceptable rust resistance.

Stainless steel: With unparalleled corrosion resistance, stainless steel is perfect for humid or chemically exposed environments, offering longevity albeit with slightly lesser strength.

Alloy steel: Post heat treatment, alloy steel emerges as a powerhouse of strength, making it a preferred choice in automotive and heavy industry sectors.

• Strength grade: Marked by durability, screw strength is categorized into grades such as 8.8 (tensile strength 800MPa, yield strength 640MPa) and 12.9 (tensile strength 1200MPa), signifying their exceptional load-bearing abilities.

4, Surface Treatment

Impeccable surface treatments ensure longevity and aesthetics. Options include galvanizing (electroplating or hot-dip), blackening, Dacromet coating, and nickel plating, each offering distinct advantages.

Galvanized: Electroplated in a lustrous silver-white with a thickness of 5-8 microns, or hot-dip coated in a matte gray-white with 20-30 microns, offering superior rust resistance.

Blackening treatment: This technique forms a sleek black oxide film via high-temperature oxidation, offering moderate rust prevention at an economical cost.

Dacromet coating: Exhibiting a robust gray finish, it withstands salt spray for over 500 hours, an ideal choice for marine environments.

Nickel plating: Known for its radiant silver sheen, nickel plating strikes a perfect balance between rust prevention and wear resistance, making it a staple in precision equipment.

5, Application

Application scenarios: Versatile and indispensable, hexagonal screws inside cup heads find their utility in high clamping force or confined spaces across mechanical manufacturing, electronic appliances, automotive, marine, aerospace, and various other industries.