Value Collection R63280228 Thumb Screw 5/16-18 Oval Head

Product Description

The VALUE COLLECTION R63280228 is an 18-8 stainless steel thumb screw with an oval head and integral shoulder, designed for hand-tightening applications where tools are not practical or permitted. The 5/16-18 UNC thread provides a standard coarse-pitch fit across a wide range of threaded inserts, panels, and fixtures. The oval head measures 0.7 inches in diameter and 0.78 inches in height, offering a comfortable grip surface. At 1.5 inches overall length, this fastener suits moderate-depth clamping and retention tasks. Fabricated from 18-8 stainless steel, it offers solid corrosion resistance for indoor and light outdoor service environments.

This thumb screw is suited for use in equipment panels, access covers, jigs, fixtures, and light assemblies where frequent manual removal and reinstallation is required. The with-shoulder design provides a positive bearing surface against the mating workpiece, reducing the risk of thread engagement errors during hand assembly. Typical applications include instrument enclosures, control panel doors, shop fixtures, and maintenance access points across HVAC, electrical, and general mechanical trades.

Key Features

• 18-8 stainless steel construction for corrosion resistance in light-duty service environments
• 5/16-18 UNC thread standard for broad compatibility with coarse-pitch tapped holes and inserts
• Oval head profile provides ergonomic hand grip for tool-free installation and removal
• With-shoulder design creates a positive bearing surface against the mating part
• 0.7-inch head diameter and 0.78-inch head height for comfortable finger torque
• 1.5-inch overall length suitable for standard panel and fixture retention tasks

Compatibility

Designed for use in any application requiring a 5/16-18 UNC coarse-thread thumb screw with an oval head and shoulder, including equipment panels, access covers, and shop fixtures.

Installation Notes

Hand-tighten only — this fastener is designed for tool-free operation; applying a wrench or driver may damage the head or over-stress the threads. Verify that the mating tapped hole or threaded insert matches the 5/16-18 UNC thread specification before installation. Inspect threads for debris or damage before each reinstallation, particularly in maintenance-cycle applications. Stainless-to-stainless galling is possible in high-cycle or high-load scenarios — apply a suitable anti-seize compound if repeated removal is expected.