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Sat Aug 18, 2012 9:34 am

Anyone know what size the bolts are that hold the rear bumper on a 82 vanagon.....i need to pick two up and having trouble figuring out their size without having em in front of me.....

thanks

Sat Aug 18, 2012 9:51 pm

IIRC they be 10x1.0@ 30mm long ...but I could be wrong :roll:
best thing is to take one with you ...its in the metric isle and get a grade 5 or better

Sun Aug 19, 2012 7:03 am

goffoz wrote: ...grade 5 or better
Note Grade 5 or 8 apply only to inch size bolts. Property class (PC) 8.8, 9.8, 10.9 apply to commonly used metric bolts (Europe and US - not Japanese).
FWIW, PC 10.9 (1040 MPa) and Grade 8 have the same ultimate tensile stress level at 150,000 psi.

Back to your regular scheduled programming. :lol:

Sun Aug 19, 2012 8:31 am

vanagonjr wrote: goffoz wrote: ...grade 5 or better
Note Grade 5 or 8 apply only to inch size bolts. Property class (PC) 8.8, 9.8, 10.9 apply to commonly used metric bolts (Europe and US - not Japanese).
FWIW, PC 10.9 (1040 MPa) and Grade 8 have the same ultimate tensile stress level at 150,000 psi.

Back to your regular scheduled programming. :lol:
All very true...but living this past 15yrs in a small hick town in the Sierras..I've learned to dilute my metric to a more palatable for of local "pidgeon" if thar's one familiar term in there it cuts down on the blank stares :shock:
Sorry...a little local speak bled thru

Mon Aug 20, 2012 9:13 am

goffoz wrote: IIRC they be 10x1.0@ 30mm long ...but I could be wrong :roll:
best thing is to take one with you ...its in the metric isle and get a grade 5 or better

If the original poster is asking about the bracket bolts the attach the bumper brackets to the frame rails they are M12 x 1 pitch. From ETKA, part number is N 010 120 3. I ran into this with my custom hitch I fabricated. I had to get longer bolts from the local bolt house. I added a bumper bracket extension an added a 3rd side bolt. Hope that helps

Mon Aug 20, 2012 11:35 am

It has been brought to my attention I mistyped the thread pitch. I recall using VW scirocco lug bolts for mock up. I believe they are 1.5 pitch.

Thu Mar 12, 2015 3:47 pm

After spendind half our at Lowes, the proper threads are metric 8x1.25

Thu Mar 12, 2015 4:09 pm

axf7228 wrote: After spendind half our at Lowes, the proper threads are metric 8x1.25

Be very wary of Big Box Store hardware for anything that requires a quality fastener!

A lot of junk is found on those shelves, stuff that will snap, strip and fail you.

Quality hardware has a paper trail of certification........ Big Box Stores and Per Pound places do not.

Dave

Mon Dec 28, 2015 10:47 am

Official: M12x1.5 x20 part#: N 0101203

Thu Mar 10, 2016 7:36 pm

I just bought an M12 x 1.5 x 30mm hex end cap bolt at AutoZone for $2. Went all the way in, works fine.