I believe these bolts are 10mm x 125 threads and 22.23mm long. I'd like to replace those as the 54 year old rusted almost stripped ones that I removed I'd rather not put back on. Does anybody know where I can find these special nuts, bolts & lock washers? Most likely they are hardened as well.

Thank you in advance for any tips or directions that may come my way.

19?

https://www.carpartsmanual.com/datsun/Z-1969-1978/axle/rear-axle-drive-shaft/19

https://www.google.com/search?q=39628-E4100

Yes it's 19 on the drawing.

Vintage Datsun and Nissan parts has the bolt kit (39628-E4100) for $95. But there doesn't seem to be any way to add it to my cart, so I've sent them an email.

All the other sites sell the bolt only ranging from 21 to 33 dollars each. I've sent emails out I would like to replace nuts bolts and lock washers

Maybe I'll have some luck on Monday

@Terrapin Z probably has some good quality used ones.

Has anybody gone on this website Vintage Datsun and Nissan parts and tried to purchase something recently.

They have parts listed but no way to add them to my cart. I've sent them 3 emails since Sunday. No response.

3 hours ago, CB Garrett said:

Has anybody gone on this website Vintage Datsun and Nissan parts and tried to purchase something recently.

They have parts listed but no way to add them to my cart. I've sent them 3 emails since Sunday. No response.

There isn't a clickable link. NissanPartsDeal.com might be a better choice: https://www.nissanpartsdeal.com/parts/nissan-bolt-driveshaft~39628-e4100.html

Here's another site I've used before: https://www.nissanparts.cc/search?search_str=39628-E4100

Z Car Depot has done a good job if building his parts variety. Looks like they have what you need.

Looks like you can spend a bundle by the time you get all of the bolts, washers, and nuts. I'd look around for used if it was mine. The Nissan parts are very durable.

Z Car Depot Inc

Axle Driveshaft Half Shaft Bolt Special 240Z 260Z 280Z

Axle Driveshaft Half Shaft Bolt Special 240Z 260Z 280Z New half shaft axle bolt. Will fit Datsun 240Z, 260Z and 280Z, 1970-78. These are bolts for the axle shaft to the outer stub axle at the wheel. T

Man, I should have kept my bucket of bolts from years of salvage yard parts picking. Prices are ridiculous.

Forgot to say also that we've all been so trained to go directly to an internet search engine that we've forgotten about the local dealership parts department (no offense intended, I just know that's how I've been retrained). If you get the right guy, someone whose been around a while, they will know how to search nationwide inventory and get it sent. On the other hand, if you get some fresh rookie you'll have to guide them through how to search using a part number. I went through this recently with a different brand of car. Worth a call or two.

Courtesy Nissan used to be the go-to place for old Nissan parts but they have faded away. Worthless today, their web site doesn't even work correctly.

Edited 27 minutes ago27 min by Zed Head