Where to buy screw studs 3/8"-16TPI x4inch?

[Anders243]

Hello forum!

I am renovating a staircase and noticed that the handrail brackets were fastened with stud bolts that were not M10... but turned out to be 3/8-16 UNC-threaded studs.

Since several of the studs are damaged, I need to replace them, but I can't find anyone selling approximately 100 mm long stud bolts with UNC threads.

Does anyone have tips on a store/webshop that sells such in Sweden?

I have searched on Amazon, eBay, and others, but there are none sold at a reasonable price, as most come from the USA and therefore have hefty shipping+VAT+customs fees. Additionally, I can't find anything on Swedol or similar either... (even though my search karma at Swedol is notoriously bad).

 

[Lorpar]

Drill the hooks to 8.5mm and use an M10 tap so you can use M10 screws.
That's probably the easiest and cheapest in this country.

 

[Anders243]

Thank you!
I will test on a hook first. They are original from the 1950s and well integrated with the rest of the stair railing, so it's important to me that the original hooks are not damaged.

 

[Anders243]

I can report that it worked excellently.
I did not think one could reshape threads so easily between two nearby dimensions, but as I said, it seems to have worked fine. Now 5 banister hooks sit nicely with new m10 pins.