Working under your Miata and spotted a few bolts with the heads worn down or damaged?
That's common on these rear chassis brace bolts.

Set of 6 rear chassis brace bolts for 94-2000 Mazda Miata.
94 95 96 97 99 00 2000
1.8L NA Miata (NA8) 94 95 96 97
1.8L NB Miata (NB1) 99 2000
These are the bolts that are usually scraped and damaged from contact with the road surface or speed bumps. (Even worse on lowered Miata)
These bolts are a unique and hard to find size.

When you are looking underneath the car, these are the 6 rear-most bolts that hold the chassis brace to the sub frame and chassis.

Get a full set of 6 bolts here.
OEM size and strength.
They use a 16mm socket to install and remove.

6 bolts is enough to bolt the rear chassis brace to the chassis/sub frame on 94-9 and 99-00 Mazda Miata.
See example images.

Set of 6 brand new bolts.

Order a set today to replace your worn out bolts - or to add a chassis brace that you car didn't have when you bought it.

[Note: Check alternate part number in the drop-down menu if you have a 01-05 Miata NB2. There is a set of 8 bolts for that application that is different from the 94-00 cars]