What size is this Bolt

DUWHOP31

MEMBER
1999 ISUZU TROOPER
3.5L
V6
4WD
AUTOMATIC
169,000 MILES

On the front right side of my vehicle listed above I lost the 2 black 6 sided brake caliper bracket mounting bolt. That mount the bracket not the caliper. I have a picture of 1 of them. A 22mm socket is used to take them off or tighten them on. The bolt is a charcoal grey almost black 6 sided bolt w/ the # 9 on the head of the bolt. I went to advance auto and bought these bolts that almost fit or work. They rake a 19mm socket to tighten and the box says GM Part #14006 (Our disc brake caliper bracket mounting bolts)

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Tuesday, January 28th, 2020 AT 11:16 AM

1 Reply

JACOBANDNICKOLAS

MECHANIC
110,176 POSTS

Hi,

Do the replacement bolts fit and tighten? The socket size shouldn't matter. If the diameter of the bolt head is smaller, use a flat washer to take up the space. Just make sure to use a product such as loctite to secure the bolt and prevent it from coming loose.

I have to be honest, this info isn't in manuals. However, I believe it is a M14 - 2.00 bolt and 36.5mm long. Do me a favor. Purchase one bolt like I mentioned and see if it properly fits and is the same as the one you have. Keep in mind the socket size shouldn't mind as long as the surface diameter is the same. The picture you provided of the ones purchased appear to have a built in washer.

Let me know.

Joe

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Tuesday, January 28th, 2020 AT 6:23 PM