Unidentified bolts

For those who obsess about exactly how their 356 left the factory!
Post Reply
Message
Author
Jim Wayman
356 Fan
Posts: 339
Joined: Sun Mar 29, 2009 5:48 pm
Location: Fallbrook, California
Contact:

Unidentified bolts

#1 Post by Jim Wayman »

I have had these small bolts for many years and don't know where I got them or what they are for. Maybe someone out there can help identify them. They are M4 X 6MM hex bolts with 7MM across the flats heads. They appear to e cad plated and are drilled for safety wire. They came in a plastic Porsche parts bag.
Attachments
IMG_5041 (2).JPG
Jim Wayman

User avatar
Mike Wilson
Classifieds Monitor
Posts: 9502
Joined: Tue Apr 15, 2008 4:37 pm
Location: SW Los Angeles

Re: Unidentified bolts

#2 Post by Mike Wilson »

No part number on the bag, Jim?

Mike
Mike Wilson
Lomita, CA
'63 B coupe

User avatar
Mike Wilson
Classifieds Monitor
Posts: 9502
Joined: Tue Apr 15, 2008 4:37 pm
Location: SW Los Angeles

Re: Unidentified bolts

#3 Post by Mike Wilson »

I've been trying to envision where a 4mm bolt would have to be secured with safety wire. I haven't run across one on a 356.

Mike
Mike Wilson
Lomita, CA
'63 B coupe

Jim Wayman
356 Fan
Posts: 339
Joined: Sun Mar 29, 2009 5:48 pm
Location: Fallbrook, California
Contact:

Re: Unidentified bolts

#4 Post by Jim Wayman »

No part number
Jim Wayman

Pete Indelicato
356 Fan
Posts: 363
Joined: Mon Apr 13, 2020 2:42 pm
Tag: 356 owner
Location: Yountville, CA

Re: Unidentified bolts

#5 Post by Pete Indelicato »

Look like the bolts that hold the brake assembly to the hub on drum brake models--three per side and drilled for wire lacing.
1963 T6 couple #212891, motor #*KD*P*730464

User avatar
Mike Wilson
Classifieds Monitor
Posts: 9502
Joined: Tue Apr 15, 2008 4:37 pm
Location: SW Los Angeles

Re: Unidentified bolts

#6 Post by Mike Wilson »

Too small for those bolts, Pete. The backing plate bolts are 10mm.

Mike
Mike Wilson
Lomita, CA
'63 B coupe

User avatar
Mike Wilson
Classifieds Monitor
Posts: 9502
Joined: Tue Apr 15, 2008 4:37 pm
Location: SW Los Angeles

Re: Unidentified bolts

#7 Post by Mike Wilson »

Jim, what is stamped on the heads of the bolts, Karro, NSF, Kamax, Verbus, etc.?

Mike
Mike Wilson
Lomita, CA
'63 B coupe

Jim Wayman
356 Fan
Posts: 339
Joined: Sun Mar 29, 2009 5:48 pm
Location: Fallbrook, California
Contact:

Re: Unidentified bolts

#8 Post by Jim Wayman »

No marks on heads
Jim Wayman

User avatar
Mike Wilson
Classifieds Monitor
Posts: 9502
Joined: Tue Apr 15, 2008 4:37 pm
Location: SW Los Angeles

Re: Unidentified bolts

#9 Post by Mike Wilson »

That's interesting, Jim. I'll check my stash but I don't think I have any original M4 hex head bolts. 4mm is not something I would use for a strong assembly but the safety wire holes may indicate use in a vibration setting. The smallest bolt I have seen on my 356 is a M6 aside from the radio power to radio bracket screws. Darned if I know! Was the Porsche bag sealed?

Brain fart: the hex bolts for the T-6 horn grills are smaller but not safety wired.

Mike
Mike Wilson
Lomita, CA
'63 B coupe

User avatar
Chris Cullin
356 Fan
Posts: 9
Joined: Mon Sep 26, 2022 9:12 am
Location: AUS
Contact:

Re: Unidentified bolts

#10 Post by Chris Cullin »

they look like MG fly wheel bolts, which are wired. Can't remember what the 356 ones are like - been 20 yrs since I was that deep into the engine.
356 T5 coupe (gone)
356 SC cab (gone)
356 C coupe
VW T3/Vanagon camper
VW T3 transporter
MG TF1500

User avatar
Vic Skirmants
Registry Hall of Fame
Posts: 8931
Joined: Tue Oct 27, 2009 5:02 pm
Location: SE Michigan

Re: Unidentified bolts

#11 Post by Vic Skirmants »

356 doesn't use small bolts for the flywheel; one BIG bolt.

User avatar
Martin Benade
356 Fan
Posts: 9550
Joined: Wed Nov 23, 2011 10:52 am
Location: Cleveland, Ohio

Re: Unidentified bolts

#12 Post by Martin Benade »

Possibly for the mechanical injection pump on a 911?
Cleveland Ohio
62 Cabriolet
56 VW
02 IS 300
04 Sienna

Brad Ripley
356 Fan
Posts: 4100
Joined: Tue Mar 25, 2008 9:28 pm

Re: Unidentified bolts

#13 Post by Brad Ripley »

Bolts for 911 sunroofs, all early 911. part number 900 075 106 02 see illus 8/14, callout #21. 4 pcs needed, in stock Germany

Post Reply