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The VALUE COLLECTION 3720TSP is a steel oval head thumb screw designed for hand-tightened fastening applications where tools are not required. Built to UNC thread standards in a 3/8-16 thread size, this thumb screw features an oval head profile with a 0.71-inch head diameter and a 0.88-inch head height. The overall length is 1-1/4 inches and the design includes a shoulder for precise positioning and load distribution. Finished uncoated, this screw is suited for general mechanical assembly work. It is commonly installed by machinists, maintenance technicians, and assembly workers in industrial and commercial settings.
This thumb screw is used in applications where frequent manual adjustment or removal is needed without tooling. The shoulder design makes it appropriate for assemblies requiring a locating or bearing surface beneath the head. Typical use cases include panel fastening, fixture assembly, jig construction, and equipment access covers in industrial, HVAC, and mechanical environments where repeatable hand-tight fastening is a priority.
Designed as a standard inch-series thumb screw for use in any application with a 3/8-16 UNC tapped hole requiring hand-tightened fastening.
Installation and removal are performed by hand without tooling. Ensure the mating tapped hole is clean and free of debris before threading in the screw. Do not over-torque by using tools on the head, as this can damage the oval head profile or strip the UNC threads. Inspect threads for wear or damage when the screw is removed during routine maintenance.
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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