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Charles Reese · 01-13-2012, 10:34 PM

In studying the cotter pins (1-1-28 Parts Price List) I notice:
(1) several of the cotters associated with the front end has suffix “ZP” (zinc plating?).
(2) the cotter for the radiator to frame bolt has suffix “RF” (raven finish?).
(3) I assume all the others were plain steel.

* While I presume the raven was to protect the cotter somewhat from radiator water I don’t understand the reason for the zinc plating on the front end components.

*Given the propensity for unfinished steel to rust (particularly in my southern humidity) how do the stainless cotters hold up to judging scrutiny?

* How does one measure the gauge of a cotter (i.e. caliper across both legs or just one leg)?

01-13-2012, 10:34 PM	#1
Charles Reese Senior Member Join Date: May 2010 Location: Richmond, VA Posts: 882	Cotters (nit picking) In studying the cotter pins (1-1-28 Parts Price List) I notice: (1) several of the cotters associated with the front end has suffix “ZP” (zinc plating?). (2) the cotter for the radiator to frame bolt has suffix “RF” (raven finish?). (3) I assume all the others were plain steel. * While I presume the raven was to protect the cotter somewhat from radiator water I don’t understand the reason for the zinc plating on the front end components. Given the propensity for unfinished steel to rust (particularly in my southern humidity) how do the stainless cotters hold up to judging scrutiny? How does one measure the gauge of a cotter (i.e. caliper across both legs or just one leg)? Last edited by Charles Reese; 01-13-2012 at 10:47 PM.