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The VALUE COLLECTION 89685 is a fully threaded stud with a 5/16-18 UNC thread form and an overall length of 2.5 inches. Fully threaded along its entire shank, this stud provides maximum thread engagement for applications requiring secure, adjustable fastening from both ends. Constructed from 18-8 stainless steel with an uncoated plain finish, it offers solid corrosion resistance suitable for wet, humid, or chemically active environments. This type of fastener is commonly installed by plumbers, HVAC technicians, electricians, and general mechanical contractors where a double-ended or through-bolted connection is required.
Fully threaded studs in this size range are used across residential and light commercial mechanical systems. Common applications include mounting equipment flanges, securing pipe supports, assembling structural brackets, and anchoring components where a standard hex bolt is not practical. The 5/16-18 thread size is a coarse-thread standard, compatible with a wide range of nuts and threaded inserts. The stainless steel construction makes this stud suitable for outdoor, marine-adjacent, or high-moisture installations where carbon steel fasteners would be prone to rust and seizing.
Designed as a standard 5/16-18 UNC fully threaded stud suitable for use with corresponding hex nuts, coupling nuts, and threaded inserts in mechanical, plumbing, and HVAC assembly applications.
Install using a stud driver, two-nut method, or locking pliers appropriate for the stud diameter. Ensure mating threads are clean and free of debris before installation to avoid galling, which is a common issue with stainless steel fasteners. Apply an anti-seize compound when threading stainless studs into dissimilar metals or in high-temperature environments. Follow applicable mechanical codes and equipment manufacturer guidelines for torque and fastener specifications.
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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