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The VALUE COLLECTION -30604-42 is a fully threaded hex head cap screw designed for industrial and mechanical fastening applications. It measures 1-8 thread size with a 3-inch length under head, cut to a Unified National Coarse (UNC) thread standard. Manufactured from Grade 316 stainless steel with a bright, uncoated finish, this fastener delivers strong corrosion resistance in wet, marine, and chemical-exposure environments. It is used wherever a standard hex head profile is required and reliable clamping load must be maintained over time.
This screw is suited for use in plumbing, HVAC, pool, and marine service assemblies where corrosion resistance is a primary concern. The Grade 316 alloy provides better chloride and saltwater resistance than Grade 304, making it a common choice for outdoor mechanical assemblies, pump housings, pipe flanges, and equipment panels exposed to moisture or chemical agents. Installation is performed with standard hand tools or a torque wrench using the appropriate socket or wrench size for the hex head.
Designed as an OEM-style replacement or service fastener for any application requiring a fully threaded 1-8 UNC hex head cap screw in Grade 316 stainless steel.
Install using a properly sized hex socket or open-end wrench rated for the fastener diameter. Apply appropriate thread lubricant or anti-seize compound when torquing stainless fasteners to prevent galling. Follow applicable mechanical codes and equipment manufacturer torque specifications for the assembly being serviced. Do not mix stainless fasteners with dissimilar metals in applications where galvanic corrosion is a concern.
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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