














🔩 Lock it down with confidence — never settle for less than secure!
The Bolt Dropper 100 Pack of 5/16"-18 Locknuts features durable 304 18-8 stainless steel construction with a nylon insert to prevent loosening from vibration. Designed for 5/16 bolts, these coarse-thread locknuts provide corrosion resistance and a strong, reliable hold across automotive, construction, and industrial applications.











| ASIN | B0785VSRBV |
| Best Sellers Rank | #41,721 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #57 in Locknuts |
| Brand | Bolt Dropper |
| Color | Silver |
| Date First Available | March 29, 2017 |
| Exterior Finish | Stainless Steel |
| Fastener Type | Lock |
| Finish Type | Unfinished |
| Global Trade Identification Number | 00810109190386 |
| Inside Thread Size | 5/16 inch |
| Is Discontinued By Manufacturer | No |
| Item Diameter | 0.31 Inches |
| Item Weight | 0.192 ounces |
| Item model number | 791758464496 |
| Manufacturer | Bolt Dropper |
| Material | Stainless Steel |
| Metal Type | Stainless Steel |
| Number of Pieces | 100 |
| Size | 5/16"-18 |
| Thread Class | Coarse |
| Thread Coverage | Fully Threaded |
| Thread Size | 5/16"-18 |
| Thread Style | Right Hand |
| Thread Type | Unified National Coarse |
P**N
Good Nuts !
Great price, good quality, nice quantity. No shocker here, but way better to have more, than not enough. Cheaper by far from box stores, and a better grade SS.
W**A
Stainless steel, no corrosion, really nice product.
OK, not the cheapest, but for outdoor application, these stainless nuts really hold up and resist corrosion I've been using these number of custom fabricated pieces and to date, never been disapointed.
M**E
My nuts worked great!
I love m.y nuts. They worked great! They are very robust, and I'm sure will hold up for the long haul. They came in a sturdy sac which is nice because if you've ever had your hut sack split and your nuts went all over the floor it's a real pain. They were nice, shiny and clean too. They screwed really well even without lube. ...hard to go wrong with d.eeez nuts.
A**R
Stainless Fasteners, Expect Galling
These nuts work exactly as expected. Look good, and do a geary job with outdoor projects. Don't use stainless nuts on stainless screws,unless you use antiseize. Stainless mated to regular steel works fine. Galling is a well known issue with stainless to stainless threaded fasteners and will seize a bolt and nut unless you know what you're doing. These nuts work perfectly within their predetermined mechanical properties. You need to know what you are doing, and look stuff up if you don't. Stop wagging your finger at limitations that can't be altered.
M**A
Great product! Great price! Shipping was late:/
The product itself gets ***** for the overall quality and price. It will take time to determine how durable they are but I think they will do fine. Would definitly buy more if I need them, in a bigger quantity as well. As far as shipping: " next day" shipping arrived a day later than it was supposed to. Which delayed my Saturday morning plans of working on an important project since I need those and didn't recieve them when they were supposed to arrive.. One of the main reasons I whent with this option because of the price and the expected shipping time. Recieveing them a day later was unsatisfactory.
Y**S
Fast but odd package
The Lock nuts came quickly but the packing was a in a form of a bag. I personally prefer that they are but into a plastic box or a container. Ultimately the locks nuts are of decent quality.
P**T
Fence
Good!
M**E
Fast shipping
It’s a nut. It screws on a bolt
R**T
everything was as per the order, no issues
S**D
👍
M**I
1/4 inch thread is the most common one I use, I go through a loth of these and stainless steel is the only metal I use
D**N
I was concerned about the reports of 1/4 - 20 nuts not being manufactured correctly but these 10-24 do work well and the nylon portion threads easily
R**O
100% Satisfait
Trustpilot
2 weeks ago
3 weeks ago