rhk118
08-01-2022, 06:57 AM
Hi All. I'm posting this PM reply I received from Paul (edwardb) to a question I had regarding nut-sert and screws to have on hand when building the coupe. In his standard fashion Paul sent back quite a thorough response with part numbers and sizes, and I'm appreciative for the time and knowledge he imparts to all of us. Putting it here as I'm sure others will find this useful. Thanks again Paul.
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There are many choices or nutserts (aka rivet nuts). I almost exclusively use these from McMaster-Carr and have had good success with them. I use the 10-32 size mainly just for the .040 aluminum panels in the kit, e.g. access covers, something I want removable, etc. The 1/4" and 5/16" are much stronger and used where the added strength is required. For any nutserts, it's critical to have the exact drill size specified so they grip properly in the hole. Otherwise they can spin after being set. A common problem. Also suggest practice or at least start with non-critical areas.
10-32 rivet nuts: Cad plated steel 98560A561. For some reason, not currently showing on McMaster’s site but does allow to enter an order. Similar to https://www.mcmaster.com/98560A576/. Tin-plated version is listed: https://www.mcmaster.com/98560A562/.
1/4" rivet nuts: Zinc plated steel https://www.mcmaster.com/95105A143/
5/16” rivet nuts: Zinc plated steel https://www.mcmaster.com/95105A155/
For the 10-32 sizes, I mainly use various sizes of SS 10-32 flanged button head screws: https://www.mcmaster.com/97654A174/ This is 5/8” long. This plus 1/2" are the most common ones I use. I do have other sizes on hand though. For the 1/4" and 5/16" sizes, use various hardware. Whatever fits the situation. I do use SS sometimes, but not always. If you haven't heard before or have the experience, any time you use SS hardware, apply anti-seize on the threads during assembly. SS has a bad habit of galling and locking up when tightened. If/when that happens, likely you won't get back apart without destroying them. Anti-seize prevents that.
For the pulled rivets (aka pop rivets) I use a variety of parts. Mostly from the kit. I've done builds where I wanted rivets with colored heads. McMaster has a variety. If I'm concerned about appearance, I've used these: https://www.mcmaster.com/97525A420/. Available in several depth sizes. For 3/16" rivets, especially where more strength is desired, I use heavy duty ones from McMaster. Like these https://www.mcmaster.com/98780A212/ also available in several depth sizes. Fair warning, these are quite hard to pull with hand tools. I have the Milwaukee cordless rivet tool and it pulls them easily. I've also used these from Summit. https://www.summitracing.com/parts/sum-abs4246lurr1. Large head and wide range of thickness. But because of the multi-grip feature, the crushed side isn't pretty. I don't use them where the back side shows. Only if they're inside a frame tube or whatever.
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There are many choices or nutserts (aka rivet nuts). I almost exclusively use these from McMaster-Carr and have had good success with them. I use the 10-32 size mainly just for the .040 aluminum panels in the kit, e.g. access covers, something I want removable, etc. The 1/4" and 5/16" are much stronger and used where the added strength is required. For any nutserts, it's critical to have the exact drill size specified so they grip properly in the hole. Otherwise they can spin after being set. A common problem. Also suggest practice or at least start with non-critical areas.
10-32 rivet nuts: Cad plated steel 98560A561. For some reason, not currently showing on McMaster’s site but does allow to enter an order. Similar to https://www.mcmaster.com/98560A576/. Tin-plated version is listed: https://www.mcmaster.com/98560A562/.
1/4" rivet nuts: Zinc plated steel https://www.mcmaster.com/95105A143/
5/16” rivet nuts: Zinc plated steel https://www.mcmaster.com/95105A155/
For the 10-32 sizes, I mainly use various sizes of SS 10-32 flanged button head screws: https://www.mcmaster.com/97654A174/ This is 5/8” long. This plus 1/2" are the most common ones I use. I do have other sizes on hand though. For the 1/4" and 5/16" sizes, use various hardware. Whatever fits the situation. I do use SS sometimes, but not always. If you haven't heard before or have the experience, any time you use SS hardware, apply anti-seize on the threads during assembly. SS has a bad habit of galling and locking up when tightened. If/when that happens, likely you won't get back apart without destroying them. Anti-seize prevents that.
For the pulled rivets (aka pop rivets) I use a variety of parts. Mostly from the kit. I've done builds where I wanted rivets with colored heads. McMaster has a variety. If I'm concerned about appearance, I've used these: https://www.mcmaster.com/97525A420/. Available in several depth sizes. For 3/16" rivets, especially where more strength is desired, I use heavy duty ones from McMaster. Like these https://www.mcmaster.com/98780A212/ also available in several depth sizes. Fair warning, these are quite hard to pull with hand tools. I have the Milwaukee cordless rivet tool and it pulls them easily. I've also used these from Summit. https://www.summitracing.com/parts/sum-abs4246lurr1. Large head and wide range of thickness. But because of the multi-grip feature, the crushed side isn't pretty. I don't use them where the back side shows. Only if they're inside a frame tube or whatever.