Value Collection 99228 Hex Head Cap Screw Grade 8 Steel

Product Description

The VALUE COLLECTION 99228 is a hex head cap screw designed for heavy-duty fastening applications where high tensile strength is required. Manufactured from Grade 8 steel with no additional coating, it measures 1-8 thread size by 7-1/2 inches in length under head. The partial thread design provides a smooth shank section that resists shear forces in structural and mechanical assemblies. This fastener meets ASME B18.2.1 and SAE J429 standards, making it suitable for demanding industrial and mechanical work. Machinists, millwrights, and maintenance technicians typically install this type of fastener.

This screw is used in industrial equipment assembly, structural fabrication, and heavy machinery maintenance where a large-diameter, high-strength fastener is needed. The 1-inch UNC thread form is common in American standard mechanical assemblies. The partially threaded shank is well suited for applications where bolt stretch and joint clamping force distribution are critical factors. This fastener ships in a package quantity of 10.

Key Features

• Grade 8 steel construction for high tensile and proof load strength
• Partially threaded shank reduces shear stress at the bearing surface
• UNC thread standard, 1-8 thread size
• Uncoated finish suitable for use with standard washers and nuts or as a base for field-applied coatings
• Meets ASME B18.2.1 and SAE J429 dimensional and mechanical standards
• Package quantity of 10 per order unit

Compatibility

Designed as a standard UNC hex head cap screw for use in any American inch-series mechanical or structural assembly requiring a 1-8 thread size and 7-1/2 inch length under head.

Installation Notes

Installation is typically performed by machinists, millwrights, or maintenance mechanics using a standard hex socket or open-end wrench sized for the fastener head. Always use a calibrated torque wrench and follow the torque specifications provided by the equipment manufacturer or applicable structural design documents for Grade 8 fasteners of this size. Ensure mating threads are clean and free of debris before installation. De-energize and lockout all equipment per OSHA lockout/tagout procedures before replacing fasteners on live machinery.