Value Collection 1-EFR-07-M7- Iron Thumb Screw 3/8-16

Product Description

The VALUE COLLECTION 1-EFR-07-M7- is a winged iron thumb screw designed for hand-tightening applications where tools are not practical or available. Sized at 3/8-16 UNC thread with a 2-inch length under the head and an overall length of 2-7/8 inches, this fastener suits clamping, adjusting, and positioning tasks across industrial, mechanical, and general trade applications. The uncoated iron construction delivers adequate strength for light-to-medium duty use. The winged head provides a secure grip surface for finger-tightening without tooling, and the integral shoulder adds positional control during assembly.

This thumb screw is appropriate for use in fixtures, jigs, guards, and equipment panels where frequent manual adjustment is required. It is a common fastener choice in manufacturing, maintenance, and shop environments where quick-release or tool-free access is a priority. The 3/8-16 UNC thread is a standard inch-series coarse thread, widely compatible with standard tapped holes and threaded inserts of the same specification.

Key Features

• Winged head design allows hand-tightening without tools
• 3/8-16 UNC coarse thread for broad compatibility with standard tapped holes
• With-shoulder construction for positional control during installation
• 2 inches length under head with 2-7/8 inches overall length
• 1-13/16 inches head diameter and 7/8 inches head height for a secure finger grip
• Uncoated iron construction suited to light-to-medium duty clamping and adjustment tasks

Compatibility

Designed as an OEM-style replacement or standard fastener for any application requiring a 3/8-16 UNC winged thumb screw with shoulder in inch-series measurement.

Installation Notes

Installation is performed by hand into a pre-tapped 3/8-16 UNC hole. Verify thread engagement is sufficient for the load before applying any clamping force. Do not use power tools to drive this fastener, as the winged head is designed for hand torque only and can be damaged by mechanical driving. Inspect the mating tapped hole for damage or contamination before installation.