These 1/8 inch diameter flat head rivets have a very small head that allows flush installation even in thin materials. Also known as Shear Rivets, they are ideal for installing Self-Locking Nut Plates.
Because of the undersized head, they should not be used as replacements for standard MS20426 countersunk rivets in structural applications. They are suitable for any non-critical application where they will be subjected primarily to sheal loading. Sold in 1/10 pound packages which contain approximately 300-400 rivets depending upon the length.
|NAS1097 Rivet Specifications and Designations|
|Designation ||NAS1097 ||AD ||4 |
(first dash number)
(second dash number)
|Specification ||Part ||Material ||Shank diameter |
|Shank length |
|Value||Rivet, Solid Shank, |
100° Flush Head
|1/8" ||L x 1/16" |
Choosing the correct length: The FAA recommends extra length of 1.33 to 1.5 times the diameter to make the shop formed head. For NAS1097AD4 rivets, add 0.166" to 0.188" to the thickness of the assembly to find the rivet length needed. Example: The -4 size (1/4" long) can be used on assemblies 0.062" to 0.084" thick.
Installation tools required, sold separately:
If the rivets will be installed near the edge of a panel, you can install them using our Hand Rivet Squeezer (Part No. 1189, sold separately). If the distance to the panel edge is greater than 3 inches, a rivet gun and bucking bar will be needed.
You can create the necessary countersink with our Manual 100 Degree Countersinking Tool (Part No. 6700, sold separately).