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Grade 12.9 Carbon Steel/Alloy Steel Socket Cap Screws

Diameter (d):

  • M2
  • M2.5
  • M3
  • M4
  • M5
  • M6
  • M8
  • M10
  • M12
  • M14
  • M14-1.5
  • M16
  • M18
  • M20
  • M22
  • M24
  • M27
  • M30
  • M36
  • M42
  • M48
  • 0#-80
  • 6#-32 
  • 8#-32
  • 10#-24
  • 0#
  • 5/32-32
  • 3/16-24
  • 1/4-20
  • 5/16-18
  • 3/8-16
  • 7/16-14
  • 1/2-12
  • 1/2-13
  • 5/8-11
  • 3/4-10 
  • 7/8-9
  • 1-1/4-7
  • 1-1/2-6
  • 1"-8
  • 1-8

Length (L):

  • 1/8
  • 1/4
  • 5/16
  • 3/8
  • 1/2
  • 5/8
  • 16
  • 18
  • 3/4
  • 20
  • 22
  • 7/8
  • 25
  • 1
  • 1"
  • 30
  • 1-1/4
  • 35
  • 1-1/2
  • 40
  • 1-3/4
  • 45
  • 50
  • 2
  • 2”
  • 55
  • 2-1/4
  • 60
  • 2-1/2
  • 65
  • 2-3/4
  • 70
  • 75
  • 3
  • 3"
  • 80
  • 3-1/4
  • 85
  • 3-1/2
  • 90
  • 100
  • 4
  • 4"
  • 110
  • 4-1/2
  • 120
  • 5
  • 5"
  • 130
  • 5-1/2
  • 140
  • 6
  • 6"
  • 165
  • 6-1/2
  • 7
  • 7"
  • 190
  • 7-1/2
  • 8
  • 8"
  • 8-1/2
  • 9
  • 9"
  • 250
  • 10
  • 10"
  • 260
  • 270
  • 11
  • 11"
  • 280
  • 12
  • 12"
  • 320
  • 13
  • 13"
  • 14
  • 14"
  • 425
  • 450
  • 460

Finish:

  • Blackened
  • Blue and white zinc
  • Dacromet
  • True color
  • Nickel plated
  • Color zinc
  • Colored zinc (trivalent)
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Specification

Description

12.9 Grade Carbon Steel Socket Cap Screws are high-strength fasteners designed for applications requiring superior mechanical properties. Made from carbon steel, these screws are heat-treated to achieve a tensile strength of 1220-1470 MPa and a yield strength of at least 1090 MPa, making them suitable for heavy-duty applications. The "12.9" grade indicates their high strength, with the first number (12) representing 1/100 of the nominal tensile strength in MPa, and the second number (0.9) indicating the ratio of yield strength to tensile strength multiplied by 10.

These screws feature a socket head, allowing for a low profile and a hexagon-shaped indentation for use with a hex key or socket wrench. The cap screw design ensures a flush fit with the surface, reducing the risk of interference and providing a clean appearance. Ideal for automotive, aerospace, and construction industries, 12.9 Grade Carbon Steel Socket Cap Screws offer reliability and durability in high-stress environments.

about us

Hangzhou Jiangxin Industry Co., Ltd. was established in 2004. It is a national high-tech enterprise and a scientific and technological enterprise in Zhejiang Province. It is a professional fastener manufacturer, integrating production, R&D, and sales. It has advanced fastener production equipment in the world and uses an advanced ERP system for management. Grade 12.9 Carbon Steel/Alloy Steel Socket Cap Screws Suppliers.

The company has passed the IS09001 international quality management system certification and has distribution outlets and logistics distribution centers in East China. The company specializes in the production and operation of standard and non-standard parts such as German standard (DIN), American standard (ANSI, ASME), international standard (ISO), national standard (GB), Japanese standard (JIS), and British standard (BSW), high-strength bolts, and high-grade expansion bolts. The materials involve various carbon steels and stainless steels (304 and 316). The products are widely used in the fields of high-speed railway, automobile, ship, machinery, mold, electronics, and construction. Custom Grade 12.9 Carbon Steel/Alloy Steel Socket Cap Screws. With its good performance, fast installation, beautiful appearance, stable compatibility, and many other advantages, it is favored by Chinese and foreign merchants.

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