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Slotted hex nuts #3222529 03/24/24 12:52 PM 03/24/24 12:52 PM
Joined: Jan 2003 Posts: 5,613 Detroit area 6PAX OP master
6PAX OP master Joined: Jan 2003 Posts: 5,613 Detroit area	I have two idler arms with bolts. The slotted nut on one of them has 6 slots, the other one has 3 wider slots. Been trying to find the difference between them (other than the obvious number of slots) but can only find information on the 6 slot nuts. Can someone clarify what the difference is (again, other than the number of slots) and what applications they were typically used on?

Re: Slotted hex nuts [Re: 6PAX] #3222530 03/24/24 12:54 PM 03/24/24 12:54 PM
Joined: Jun 2003 Posts: 21,405 It's a dry heat gtx6970 Too Many Posts
gtx6970 Too Many Posts Joined: Jun 2003 Posts: 21,405 It's a dry heat	As a general rule, 3 slots is OEM. 6 slots is aftermkt and usually plated bright zinc, OE was dark phosphate All the OEM idler arm, pitman arm and tie rod nuts were 3 slotted As far as Im aware PS, I think a lot of the OEM lower ball joint to backing plate nuts were 6 slot but dark phosphate plated

Re: Slotted hex nuts [Re: gtx6970] #3222537 03/24/24 01:34 PM 03/24/24 01:34 PM
Joined: May 2019 Posts: 6,231 nowhere S Sniper master
Sniper master S Joined: May 2019 Posts: 6,231 nowhere	They are called castellated nuts

Re: Slotted hex nuts [Re: Sniper] #3222558 03/24/24 03:39 PM 03/24/24 03:39 PM
Joined: Dec 2004 Posts: 10,552 Rittman Ohio fourgearsavoy I Live Here
fourgearsavoy I Live Here Joined: Dec 2004 Posts: 10,552 Rittman Ohio	You can still buy the OEM nuts from AMK Fasteners https://www.amkproducts.com/bulk-fasteners-products/?Product_ID=11486 Gus 64 Plymouth Savoy 493 Indy EZ's by Nick at Compu-Flow 5-Speed Richmond faceplate Liberty box Dana 60

Re: Slotted hex nuts [Re: fourgearsavoy] #3222624 03/25/24 12:33 AM 03/25/24 12:33 AM
Joined: Mar 2011 Posts: 1,653 Cut and Shoot, TX kentj340 top fuel
kentj340 top fuel Joined: Mar 2011 Posts: 1,653 Cut and Shoot, TX	Originally Posted by fourgearsavoy You can still buy the OEM nuts from AMK Fasteners https://www.amkproducts.com/bulk-fasteners-products/?Product_ID=11486 Gus AMK offers 1/2", 9/16", and 5/8", but not 7/16". If you don't see two dolphins, you need a vacation.

Re: Slotted hex nuts [Re: kentj340] #3222662 03/25/24 11:31 AM 03/25/24 11:31 AM
Joined: Jan 2003 Posts: 32,924 Grand Prairie,Texas stumpy I Win
stumpy I Win Joined: Jan 2003 Posts: 32,924 Grand Prairie,Texas	Check Fastenal.

Re: Slotted hex nuts [Re: gtx6970] #3222668 03/25/24 12:15 PM 03/25/24 12:15 PM
Joined: Jan 2003 Posts: 25,750 Rio Linda, CA John_Kunkel Too Many Posts
John_Kunkel Too Many Posts Joined: Jan 2003 Posts: 25,750 Rio Linda, CA	Originally Posted by gtx6970 As a general rule, 3 slots is OEM. 6 slots is aftermkt and usually plated bright zinc, OE was dark phosphate Factory used both. The INTERNET, the MISinformation superhighway

Re: Slotted hex nuts [Re: John_Kunkel] #3222672 03/25/24 12:22 PM 03/25/24 12:22 PM
Joined: Jun 2003 Posts: 21,405 It's a dry heat gtx6970 Too Many Posts
gtx6970 Too Many Posts Joined: Jun 2003 Posts: 21,405 It's a dry heat	Originally Posted by John_Kunkel Originally Posted by gtx6970 As a general rule, 3 slots is OEM. 6 slots is aftermkt and usually plated bright zinc, OE was dark phosphate Factory used both. That literature may show that. But show me an original car with 6 slot nut ,,, other than what the I mentioned

Re: Slotted hex nuts [Re: gtx6970] #3222753 03/25/24 06:44 PM 03/25/24 06:44 PM
Joined: Mar 2006 Posts: 9,827 MI, usa dvw master
dvw master Joined: Mar 2006 Posts: 9,827 MI, usa	I've found both styles on original cars. Doug

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