✅ SOLVED What type of nut is this

[savinghistoryalway.s]

 

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[Blackfoot58]

Possibly a grounding lug for electrical wire. Is it copper?

 

[savinghistoryalway.s]

Possibly a grounding lug for electrical wire. Is it copper?

Brass

 

[AU Seeker]

It's a framing square stop or also know as Stairs Gauge.

They are used in pairs set at the proper angle needed for a set of steps so the angle can be easily repeated.

Empire 3/4 in. Brass Stair Gauges (2-Pack) 105 - The Home Depot

The Empire 3/4 in. Brass Stair Gauges (2-Pack) are used for making repeated cuts on rafters and stairs. The gauges are crafted with solid brass to help ensure strength and feature sure-grip thumb screws

www.homedepot.com

 

[savinghistoryalway.s]

It's a framing square stop or also know as Stairs Gauge.

They are used in pairs set at the proper angle needed for a set of steps so the angle can be easily repeated.

Empire 3/4 in. Brass Stair Gauges (2-Pack) 105 - The Home Depot

The Empire 3/4 in. Brass Stair Gauges (2-Pack) are used for making repeated cuts on rafters and stairs. The gauges are crafted with solid brass to help ensure strength and feature sure-grip thumb screws

www.homedepot.com

Thank you to all