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Author Topic: Fillister-head screw - M8X35 ZNS  (Read 3660 times)

Offline TimTyler

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Fillister-head screw - M8X35 ZNS
« on: August 10, 2015, 06:45:43 PM »
Fillister-head screw : M8X35 ZNS : BMW# 07119901027

That the BMW part for the muffler clamp screw on K75's.

Anybody know what ZNS means?  The internet doesn't seem to have answers. Wonder if it's a heat rating.
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Offline rbm

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Re: Fillister-head screw - M8X35 ZNS
« Reply #1 on: August 10, 2015, 11:27:00 PM »
Probably zinc plated, for corrosion resistance in that application.  ZnS is chemical designation for Zinc Sulphate.
https://www.boltdepot.com/fastener-information/Materials-and-Grades/Materials.aspx
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  • Regards, Robert
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Offline TimTyler

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Re: Fillister-head screw - M8X35 ZNS
« Reply #2 on: August 11, 2015, 03:01:26 AM »
Could be. A lot of the BMW hardware has that dull gray finish. I wonder if that is a hot dipped galvanized finish. Never seen it anywhere besides nuts and bolts on the bike.
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Offline The Mighty Gryphon

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Re: Fillister-head screw - M8X35 ZNS
« Reply #3 on: August 11, 2015, 02:12:18 PM »
Probably electroplated.  Too smooth for hot dip unless there is a process I haven't heard of.
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  • In my garage in Marilla, NY
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