Headlights

[Larry & Norma]

Hi, Just need confirmation - The screws which hold the headlight units to the bodywork, should they be machine screws or self tapping screws thanks
Larry

[jacovdw]

Larry, if I remember correctly, it should be self tapping screws.

[114015]

No Jaco...,

I am not convinced.

The four screws holding down the headlight unit are no self tapping screws but threaded screws.
M4 Philips machine screws if I remember that correctly. Or was it M3? I believe M4.
These funny screws are quite unique because of the head and the tip of the thread which is kind of cone-like. Couldn't find a correct replacement yet but saw them on a brand-new set of headlight units (Europa style).

Definitely the headlight housings have welded-in clamps with a metric thread.

Naj knows the dimensions definitely.

Best,

Achim

[scoot]

The OP needs to clarify whether he means the headlight door or the headlamp lamp holder thing.

[Naj ✝︎]

Achim,

Yes, I agree. 4mm screws with small head and a few front threads missing on to screw to help locating the holes when fitting.

[Larry & Norma]

Ok, thanks for that. I thought they might be 4mm machine screws but mine, like many i suspect, have been replaced with self tappers over the years.

[114015]

Yes, I agree. 4mm screws with small head and a few front threads missing on the screw to help locating the holes when fitting.

Thanks, Naj...

... for the confirmation.
I wasn't quite sure about the size anymore.
The other unique feature of these screws is that the Philips head is thick and flat and not lens-like (lenticular) as typical Philips screws are.
Sadly I have not yet been able to figure out what DIN or ISO code these screws are.

Achim

[Naj ✝︎]

Yes, Achim,

I cannot find the part # as well.

EPC lists self tappers but I may be lookin in the wrong place 

naj

[Jonny B]

Looking in the 250 SL book, i see two possibles (which I am typing as listed in the parts book)

DIN 007981004331, lens head screw, sheet metal. The DIN reference book gives BZ 4.2 X16 DBL 8451-21 (high polish galvanic iridescent passivation,standard version, which would be a 4.2 mm diameter, 16 mm length
or

DIN 007981 003228 lens head screw, sheet metal (mounting angle to ornamental frame)  this would be a BZ 3.9 mm diameter, 9.5 mm length, with the same finish DBL8451-21.

Verification?

[VincentR]

Hi Guys,

Here are 3 pics of the original screw for headlight aluminium frame fixing on the body front fender.
As you will see on that screw :
--> little pilot end;
--> what you call in us : cheese pan head;
--> Philips driving print;
--> M4 thread,
--> Grey/white zinc plated.

I hope this information will help.
I've found some more screws on one SEDAN W108 280S (same screws) because, as for some others W113, mine was fitted with non original screws.

Best regards.
Vincent R from France.
(Silver 280 SL 1970).