The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - What's the deal with original bumper nuts?

**71CHEVYSHORTBED402** · 05-07-2020, 05:56 PM

These are original nuts installed with the front bumper and brackets. I imagine the same nuts were used for a rear bumper as well. Anyone know what type of nut they're called? I wonder if they're reproduced, I can use another eight or so.

What's the deal with the slots? Only advantage I see is penetrating oil, maybe that's exactly what the nuts are designed for. I don't see a locking advantage, perhaps I'm missing it.

Thank you

05-07-2020, 05:56 PM	#1
71CHEVYSHORTBED402 Senior Member Join Date: Feb 2009 Location: Northern Nevada Posts: 7,391	What's the deal with original bumper nuts? These are original nuts installed with the front bumper and brackets. I imagine the same nuts were used for a rear bumper as well. Anyone know what type of nut they're called? I wonder if they're reproduced, I can use another eight or so. What's the deal with the slots? Only advantage I see is penetrating oil, maybe that's exactly what the nuts are designed for. I don't see a locking advantage, perhaps I'm missing it. Thank you Attached Images __________________ Tony 71 Custom Deluxe, SWB, 2WD, 402, A/C. I developed an assembly guide (kit) for restoring this truck from the ground up, complete with details including full hardware descriptions. Much of the info. applies to all 67-72 GM. My build thread, with some info. about the assembly kit https://67-72chevytrucks.com/vboard/...d.php?t=730025