Value Collection 1-EFJ-07-17- Iron Thumb Screw 3/8-16

Product Description

The VALUE COLLECTION 1-EFJ-07-17- is a winged iron thumb screw designed for hand-tightened fastening applications where tools are not required. The screw features a 3/8-16 UNC thread standard and measures 1-5/8 inches in overall length with a 3/4-inch length under the head. The winged head design provides a secure grip for finger tightening, making it a practical choice for jigs, fixtures, and assemblies that require frequent adjustment or removal. A zinc finish provides basic corrosion resistance in light-duty environments. Machinists, fabricators, maintenance technicians, and assembly workers are the primary installers of this hardware type.

This thumb screw is suited for use in industrial, commercial, and workshop settings where hand-tightened fasteners are needed for quick-release or adjustable assemblies. The shoulder design and 5/8-inch shoulder diameter help locate and align components during assembly. The 3/8-16 UNC coarse thread is a widely used standard size compatible with a broad range of tapped holes and threaded inserts in ferrous and non-ferrous assemblies.

Key Features

• 3/8-16 UNC coarse thread for broad compatibility with standard tapped holes
• Winged head design enables hand-tightening without tools
• With-shoulder configuration aids component alignment during assembly
• 1-13/16-inch head diameter provides a wide gripping surface for finger torque
• Zinc finish offers light corrosion resistance for general-purpose use
• Iron construction with 32510 material grade for reliable light-duty strength

Compatibility

Designed as a standard replacement or sourcing option for 3/8-16 UNC winged thumb screws in hand-tightened fastening applications across industrial and workshop assemblies.

Installation Notes

Installation is performed by hand without the need for wrenches or power tools. Verify that the mating tapped hole or threaded insert matches the 3/8-16 UNC thread specification before installation. Do not use impact tools or wrenches on the winged head, as this can strip the thread or damage the head. Ensure threads are clean and free of debris before assembly.