Value Collection 1-EFT-10-17- Iron Thumb Screw 3/8-16

Product Description

The VALUE COLLECTION 1-EFT-10-17- is a winged thumb screw machined from iron with a zinc finish, designed for hand-tightened fastening applications where tools are not required. The screw features a 3/8-16 UNC thread and a length under head of 3 inches, making it suitable for securing panels, covers, guards, and assemblies that require frequent removal or adjustment. The winged head provides adequate grip surface for finger-tightening, while the shouldered shank adds a locating function to help align mating components. This fastener is installed by maintenance technicians, millwrights, and equipment assemblers across light industrial, mechanical, and trade service environments.

This thumb screw is commonly used in applications where repeated hand access is needed, such as removable access panels, equipment enclosures, jigs, fixtures, and light-duty clamping assemblies. The shoulder design is useful when a controlled fit or alignment feature is required between mating parts. The zinc finish provides a basic level of corrosion resistance suitable for dry or lightly protected indoor environments. The 3/8-16 UNC thread is a widely used coarse-thread standard, compatible with standard nuts, inserts, and tapped holes in that size.

Key Features

• 3/8-16 UNC coarse thread for compatibility with standard hardware
• Winged head allows hand-tightening without tools
• With-shoulder design aids part alignment and controlled seating
• Iron construction with zinc finish for basic corrosion resistance
• 3 inch length under head suits moderate-depth panel and enclosure fastening
• 1-11/16 inch head diameter provides adequate grip surface for finger operation

Compatibility

Designed as a standard 3/8-16 UNC winged thumb screw suitable for use in any application requiring a hand-tightened fastener with a shoulder and winged head in that thread size.

Installation Notes

Installation requires no tools under normal hand-tightening conditions. Ensure the mating tapped hole or nut matches the 3/8-16 UNC thread specification before installation. Do not use power tools or wrenches on the winged head, as this may damage the head geometry or over-torque the fastener. Inspect threads and the shoulder fit for proper engagement before applying load to the assembly.