I brought these pair of glasses from Zenni in the January 19, 2023. I specifically picked this pair because I liked the design as well as I no longer had to deal with the an adjustable nose pad that typical comes with a metal frame. There were a few rare incident where I have misplaced my glasses and stepped on my glasses and mess up the nose pad and readjust it never quite right. It was either too much pressure on one side or the nose pad would be too loose and constant slip down. With these pair of glasses I no longer had to dial in the nose pad to fit just right. However, the frame being so heavy, whenever I looked down, these pair would also slip down my nose. I fixed the issue by buying a strap to hold the end piece so it couldn’t slip down any more. No other issues.
I got do redo my eye exam and with that comes a new prescription, and I didn’t want to change my glasses frame so I reorder from Zenni the same pair on July 2, 2025. There weren’t anything wrong with the glasses under til recently. The screws holding in place the nose pad would come loose and fall off. The first time it happen I thought because I had clean the nose pad by unscrewing it then when I screw it back on I must of not tighten the screw enough. However, the other day, when I was finish up my workout of jump roping I took off my glasses to wipe my sweat and again it happen the screws complete unloose and fell off. I was fortunate enough to be home where the floor was hard wood so I could easily find the missing screw. Had it been else where, finding my missing screw would be finding a needle in a hay stack. It was annoying, but I didn’t think much of it.
Today, I thought of a solution to the problem to resolve the screw from coming loose, I had some spare blue thread locker that I could apply and hopefully prevent the screw from coming loose. I wanted to swap my old glasses screws and nose pad while I apply the thread locker to the new screws so I could still use my glasses while I wait til it drys. But that’s when I noticed the old screws from the older frame seem longer than the new ones. Luckily for me, I have caliper to measure to see whether or not there was a difference.
Old screws
A. 2.3241 mm = .0915 in
B. 2.3241 mm = .0915 in
New screws
A. 2.2225 mm = .0875 in
B. 2.2479 mm = .0885 in
Difference
A. .1016 mm = .0004in
B. .0762 mm = .0003in
I think for people that don’t do much intense cardio it would be a non issue. But for me, I try to do cardio of jump rope 20 min everyday, and cycle for grocery every now and then. I never had any issues with the older frame with the nose pad screw coming loose and falling off. I have probably have done more cardio with my older glasses and never has it once fallen off. Never. Thankfully, because I still have my old frames I can simply swap the new shorter screw with the old longer screw.
TL;DR – Newer pair of glasses nose pad keeps falling off because the newer screws are shorter than the old ones. Paid about the same price for them to cut corners off a few MM in the screws.
Recently I bought backup pair from Costco where one of the screws would occasionally fall out. Same issue. The hole wasn’t stripped, but the screws were uncomfortably short and I ended up having to replace them.
Did you just replace the screws or glasses? I’m hoping if I face this problem again in the future I can just order some longer screws as a replacement.
The interesting part of this is why you wear glasses when you skip rope.
- Relevant commentary on your own dull life. Posts should be about your own dull, lived experience. This is our most important rule. Direct questions, random thoughts, comment baiting, advice seeking, many uses of “discuss” rarely comply with this rule.
My bad. Thanks for the clarification
Ignore the haters. I found your post to be extremely dull
I removed a paragraph at the end where I was asking for recommendations on other glass brand that were decent. That’s why they highlighted - advice seeking. Thanks for reading my dull post tho. :)
If you’re worried about it, ask for recommendations in a top-level comment, which is perfectly in-bounds.
I’d say that you probably don’t need a new brand, the standards allow a bit of deviation*. A tiny tap of rubber cement on the back of the installed screw (I use a toothpick) will keep them in place but will still be removable with a screwdriver.
*As far as the length, the standard is covered in ASME B18.11. Those are probably .95" screws and they’re allowed a deviation of around -.015" (positive deviation, is not within standard). Assuming your calipers are accurate, all of the screws are within spec for length.
Kinda forgot that there deviation allowed for screws. I don’t have rubber cement but I have thread locker rated for 1/4 “ bolts. My glasses screw are much smaller than that so I’m not sure if it’s going to work. For now, like mention in the post, I just swap out my shorter screws for the longer ones. I really hope I don’t need to switch brand because I like the current frame I have.
You could also probably buy a kit on Amazon that would have 100+ of those screws so you could pick one with the right dimensions for your frames and the frames of all of your kinsfolk for the next 3 generations.
Good to know. Don’t want to support Amazon, so I guess I’ll just find it elsewhere.
