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The VALUE COLLECTION C703519 is a Grade 8 steel hex head cap screw designed for high-strength fastening applications. Sized at 3/4-16 (Unified National Fine thread) with a 3-1/4 inch length under head, this screw features partial threading and an uncoated finish. It conforms to ASME B18.2.1 and SAE J429 standards, making it a recognized option for critical structural and mechanical assemblies. Sold in a package quantity of 25, the C703519 is suited for shops, maintenance crews, and field technicians who need a reliable supply of heavy-duty fasteners on hand.
Grade 8 hex head cap screws of this size are commonly used in heavy equipment assembly, industrial machinery, structural steel connections, and high-load mechanical joints. The 3/4-16 UNF thread pitch provides finer thread engagement compared to coarse-thread variants, which is preferred where vibration resistance or precise torque control is required. The uncoated finish is standard for applications where the joint will be lubricated, painted over, or used in controlled environments without exposure to corrosive conditions.
Designed as a standard inch-series hex head cap screw for use with 3/4-16 UNF hex nuts, flat washers, and lock washers conforming to ASME and SAE dimensional standards.
Installation should be performed by qualified mechanical or maintenance technicians familiar with fastener torque requirements for Grade 8 hardware. De-energize, depressurize, or lock out any equipment before servicing fastened joints. Use a calibrated torque wrench and apply the appropriate torque value per the equipment manufacturer's specifications or applicable engineering standards. Do not mix Grade 8 fasteners with lower-grade nuts or hardware, as mismatched grades can result in joint failure.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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