Midwest Fasteners Class 8.8 Steel Yellow Zinc Fine Thread Hex Cap Screw

Midwest Fasteners Class 8.8 Steel Yellow Zinc Fine Thread Hex Cap Screw

The Midwest Fasteners Hex Cap Screw is a Class 8.8 steel hex bolt finished in yellow zinc for corrosion resistance and a clean, consistent appearance on the jobsite or in the shop. Built with a fine thread connection, this hex cap screw is designed for applications that call for tighter thread engagement and reduced vibration loosening compared to a standard coarse thread fastener. This listing covers the full metric bolt size family, available in diameters from 8mm-1.0 through 12mm-1.5 and lengths ranging from 10mm up to 100mm, so the correct size can be selected for the specific assembly or repair job at hand. As a Class 8.8 steel fastener, it delivers the strength profile contractors and fabricators expect from a mid-to-high strength metric-grade bolt, making it a dependable choice for structural, equipment and machinery assembly work where a true hex head bolt is specified.

Key Features

• Size Range: Available across metric diameters from 8mm-1.0 to 12mm-1.5 and lengths from 10mm to 100mm, covering the full family of options for this hex cap screw.
• Thread Type: Fine thread connection for tighter engagement and improved resistance to vibration loosening versus coarse thread.
• Material & Finish: Steel construction with a yellow zinc plated finish for added corrosion resistance and a bright, uniform appearance.
• Grade: Class 8.8 steel, suitable for applications requiring higher tensile and shear strength than standard low-grade hardware.
• Head Style: Six-sided hex cap screw head designed for use with a standard wrench or socket for high-torque installation.
• Type: Hex bolt configuration, a common choice across structural, mechanical and equipment assembly applications.

Technical Specifications

• Product Type: Hex Bolt
• Finish: Yellow Zinc
• Thread Type: Fine Thread
• Grade: Class 8.8
• Country of Origin: China
• Product Material: Steel
• Size Range: 8mm-1.0 x 10mm through 12mm-1.5 x 100mm (39 size/length options)

Typical Applications

• Machinery and equipment assembly requiring Class 8.8 strength hardware.
• Structural steel connections where a fine thread hex bolt is specified.
• General fabrication and maintenance work calling for corrosion-resistant zinc plated fasteners.
• Automotive and industrial equipment repair where fine thread hex cap screws are the standard replacement part.

Why Midwest Fasteners?

Midwest Fasteners supplies Class 8.8 steel hex cap screws with a consistent yellow zinc finish and fine thread configuration across a full range of metric diameters and lengths, giving contractors, fabricators and maintenance techs a dependable, correctly-graded fastener for demanding assembly and repair work. Consistent material, finish and thread quality across every size in the family make it easy to standardize on this hex bolt for professional jobs that require reliable Class 8.8 strength hardware, whatever diameter or length the application calls for.