Hi Performance Steel Washers
Hi Performance Steel Washers
(OP)
I am looking for a source of information, dimensions, material and properties (hardness) and potential suppliers for fasteners, regular flat and lock washers (not helical spring type), for use with SAE Gr8 & A9 (ISO 10.9 &12.9) bolts. Also does anyone have experience with these using Dacromet or geomet coating in an acidic ground water environment.
Thanks in advance
Thanks in advance





RE: Hi Performance Steel Washers
Be sure to include the trailing "E" in NAS1149E. Otherwise you'll get a completely different, weak material instead of A-286. Cannot comment on the coatings you named.
RE: Hi Performance Steel Washers
I agree with Aerospace quality washer [NAS1147E] noted by vonlueke... but there are commercial grades available [hard steel, plated].
Try SAE HS-4000 Fastener Standards Manual [available thru SAE @ web-site!].
Regards, Wil Taylor
RE: Hi Performance Steel Washers
RE: Hi Performance Steel Washers