1/4-20 x 1 1/2 Slotted Pan Machine Screw Fully Threaded Zinc 10-32 064-105 It has a square shape

It has a square shape with a 1/4-20 thread size

The Grade 5 rating indicates its strength and reliability

Its nylon insert creates a self-locking mechanism

including hanging light fixtures

1/4-20 x 1 1/2 Slotted Pan Machine Screw Fully Threaded Zinc 10-32 064-105 It has a square shapeThis 1 4 20 x 1 1 2 Slotted Pan Machine Screw is made of durable zinc and features a fully threaded design for secure fastening. Its slotted drive allows for easy installation and removal using a standard screwdriver. The pan head provides a low profile and a finished appearance, making it suitable for a variety of applications. With its corrosion resistant zinc coating, this screw is ideal for use in both indoor and outdoor environments.