Socket Head Cap Screw | Grade 10.9 High Tensile Black Oxide Fastener

The Grade 10.9 High Tensile Black Oxide Socket Head Cap Screw is engineered for high-stress industrial, mechanical, and automotive applications where maximum fastening strength and space optimization are critical. Featuring a deep hexagonal socket drive, this cap screw allows for high-torque tightening using standard Allen keys or hex bits, minimizing the risk of cam-out and ensuring a secure, flush fit in counterbored holes.

Manufactured from premium alloy steel and quenched and tempered to meet stringent Grade 10.9 mechanical properties, this fastener delivers exceptional tensile strength and load-bearing capacity. The premium black oxide finish offers an additional layer of mild corrosion resistance while providing a clean, matte black industrial appearance. Ideal for precision machinery assembly, heavy equipment manufacturing, and high-vibration environments, this socket cap screw ensures long-term structural integrity and reliability.

• Material: Quenched and tempered alloy steel
• Finish/Coating: Black oxide
• Size/Dimensions: Standard M8 x 40mm (industry-standard assumption based on visual reference)
• Thread Type: Metric coarse pitch, partially threaded
• Grade/Strength: Grade 10.9 (High Tensile)
• Application: Structural joint fastening, engine assembly, precision machine alignment
• Industry Use: Manufacturing, automotive, aerospace, heavy machinery, robotics
• Key Features: Hexagonal socket drive for tight spaces, deep knurled head rim, superior tensile strength, flush-mount compatible