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The VALUE COLLECTION MP30574 is a 1/4-20 UNC hex head cap screw with a 1-1/4-inch length under head, manufactured from Grade 316 stainless steel. Grade 316 stainless offers superior corrosion resistance compared to standard 304-grade fasteners, making it well suited for wet, chemically aggressive, or marine environments. The hex drive measures 7/16 inches across flats, accepting a standard combination or hex wrench. This is a general-purpose threaded fastener used by plumbers, HVAC technicians, electricians, and mechanical contractors wherever a corrosion-resistant machine screw is required.
This fastener is appropriate for residential and commercial applications where exposure to moisture, chlorides, or mild chemical agents is a concern. Typical install scenarios include equipment mounting in mechanical rooms, outdoor enclosures, pool and spa equipment panels, and piping support hardware. The inch-system thread and UNC standard make it compatible with standard tapped holes and hex nuts in 1/4-20 configurations across a wide range of trade equipment and structural components.
Designed as an OEM-style replacement or general-use fastener for any application requiring a 1/4-20 UNC hex head cap screw in Grade 316 stainless steel.
Installation is performed by any licensed trade professional or qualified technician using a 7/16-inch open-end wrench, combination wrench, or socket driver. De-energize all electrical circuits and shut off fluid systems before working in areas where fastener installation could disturb live components. Apply thread lubricant or anti-seize compound rated for stainless steel if fastening into dissimilar metals to prevent galling. Follow applicable mechanical and structural codes for the specific application.
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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