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Socket Head Shoulder Screw

Socket head shoulder screws from Pankaj International are precision fasteners designed for applications requiring accurate alignment and robust performance. Featuring a cylindrical shoulder and a hexagonal socket head, these screws are ideal for creating pivot points or bearing surfaces in machinery and mechanical assemblies. The shoulder provides a precise, load-bearing surface while the socket head allows for secure tightening. As a leading fasteners manufacturer in Ludhiana, India, Pankaj International offers high-quality socket head shoulder screws that ensure reliability and durability in demanding applications.





Size Range
Diameter Metric: M5 to M20
Length Metric: 15 mm to 100 mm
Technical Specifications



d Ds p b Dk k s
Min. Max. Min. Max. Min. Max. Min.
M5 6.5 0.8 9.25 9.75 9.78 10.22 4.32 4.5 3.0 2.4
M6 8.0 1.0 10.75 11.25 12.73 13.27 5.32 5.5 4.0 3.3
M8 10.0 1.25 12.75 13.25 15.73 16.27 6.78 7.0 5.0 4.2
M10 13.0 1.5 15.60 16.40 17.73 18.27 8.78 9.0 6.0 4.9
M12 16.0 1.75 17.60 18.40 23.67 24.33 10.73 11.0 8.0 6.6
M16 20.0 2.0 21.60 22.40 29.67 30.33 13.73 14.0 10.0 8.8
M20 25.0 2.5 26.60 27.40 35.61 36.39 15.73 16.0 12.0 10.0


Tensile Strength Size Range Equivalent Standards
Property Class Diameter Length
PSI N/mm2 Grade Metric Inch Metric Inch IS ISO DIN BS ANSI JIS
60000 to 174000 400 to 1200 4.6 to 12.9 M5 to M20 - 15 mm to 100 mm - - 7379 9841 4168 B18.3.3M B1175


Socket Head Shoulder Screw: Essential Features and Uses


Socket head shoulder screws are specialized fasteners designed to provide a robust and versatile solution for securing components in a wide range of applications. Featuring a cylindrical shoulder with a hexagonal socket head, these screws offer both precision and strength, making them ideal for use in machinery, automotive, and structural assemblies. At Pankaj International, we manufacture high-quality socket head shoulder screws that adhere to stringent industry standards, ensuring reliable performance and durability.


The unique design of the socket head shoulder screw includes a cylindrical shoulder that provides a precise fit and support for various components. This feature allows the screw to serve as a pivot point or a locating device, making it essential in applications where precise alignment and movement are required. The hexagonal socket head facilitates easy tightening with a standard hex key, ensuring a secure fit and reducing the risk of slipping or stripping during installation. This design is particularly beneficial in applications where space constraints or high torque requirements are present.


Socket head shoulder screws are manufactured from high-quality materials such as alloy steel and stainless steel, which offer excellent tensile strength and resistance to wear. These materials ensure that the screws can withstand significant loads and stresses, making them suitable for heavy-duty applications. Additionally, our socket head shoulder screws are available with various protective coatings, including zinc plating and black oxide, to enhance their resistance to corrosion and extend their service life. This durability makes them ideal for use in both indoor and outdoor environments where exposure to moisture and other corrosive elements may occur.


At Pankaj International, we are committed to providing high-quality socket head shoulder screws that meet the highest standards of performance and reliability. Whether you are working on machinery, automotive assemblies, or structural projects, our screws offer the precision and strength you need for successful fastening solutions. Contact us today to explore our range of fasteners and find the perfect solution for your specific requirements.


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Pankaj International is an ISO Certified Nationwide Manufacturer of Stocked and Custom Nuts, Bolts and Fasteners

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