Value Collection 1-DEL-07-M7- Iron Thumb Screw 5/16-18

Product Description

The VALUE COLLECTION 1-DEL-07-M7- is an iron thumb screw with a winged head designed for tool-free fastening in light-duty mechanical and fabrication applications. It features a 5/16-18 UNC thread and a 1-inch length under the head, making it a standard size for manual adjustment panels, jigs, fixtures, and access covers. The winged head allows for finger-tightening and loosening without a driver. The screw is uncoated iron with a shoulder design, giving it added bearing surface at the joint interface. Installers in HVAC, plumbing, and general trade work use this style of thumb screw where repeated hand-access to a fastened component is required.

This thumb screw is suited for use in light-duty assemblies where tool-free fastening is preferred. Typical applications include equipment panels, cover plates, jigs, fixtures, and access doors in both residential and light commercial settings. The 1-3/4-inch head diameter provides a wide grip surface for consistent manual torque. The with-shoulder design helps locate and align mating parts during repeated removal and reinstallation cycles.

Key Features

• Winged head allows tool-free hand tightening and loosening
• 5/16-18 UNC thread for compatibility with standard inch-series tapped holes
• With-shoulder design adds bearing surface and aids part alignment
• 1-3/4-inch head diameter provides wide finger grip
• Uncoated iron construction for general indoor mechanical use
• 1-inch length under head fits standard panel and fixture applications

Compatibility

Designed as a general-purpose inch-series thumb screw for use in any assembly with a 5/16-18 UNC tapped hole requiring tool-free manual fastening.

Installation Notes

Installation requires no tools under normal use conditions; the winged head is intended for hand tightening only. Ensure the mating tapped hole is clean and free of debris before threading to avoid cross-threading or galling. Do not use a wrench or driver on the winged head, as this may damage the wings or the mating thread. For applications subject to vibration, a thread-locking method appropriate to the assembly should be considered.