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๐ง Upgrade your build with nuts that never quit!
AMZCUBEโs 5/16"-18 Flared Spring Channel Nuts come in an 8-piece set featuring an 8mm thickened, electro-galvanized carbon steel design. Engineered with a widened flared spring to prevent drops and snagging, these nuts offer superior durability, anti-slip grooves for vibration resistance, and precision threading for flawless bolt engagement. Ideal for professional-grade strut channel support systems, solar panel mounts, and seismic bracing, they deliver reliable, long-lasting performance in demanding industrial environments.


















| ASIN | B0FKBG2GPS |
| Best Sellers Rank | #147,459 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #47 in Strut-Channel Nuts |
| Brand | AMZCUBE |
| Customer Reviews | 5.0 5.0 out of 5 stars (9) |
| Exterior Finish | Electro-galvanized |
| Fastener Type | Lock |
| Item Dimensions | 1.37 x 0.78 x 1.93 inches |
| Item Weight | 0.77 Pounds |
| Manufacturer | AMZCUBE |
| Material Type | Electro Galvanized Carbon Steel |
| Metal Type | Electro Galvanized Carbon Steel |
| Model | LBK-516 |
| Part Number | LBK-516 |
| Thread Coverage | Fully Threaded |
| Thread Size | 5/16"-18 |
| Thread Style | Right Hand |
| Unit Count | 8.0 Count |
J**S
Must have
The larger spring makes all the difference! Otherwise the smaller ones are a pain to use. Very HD.
C**K
Great quality
These work better than the ones I get from granger. The treads are smooth when installing bolts. The springs are strong and hold everything in place during assembly. An excellent value for the cost
B**N
A very well designed strut nut, better than the straight spring versions!
These are made really nice! Absolutely I would prefer these over the regular spring nuts. The usual brand name straight spring nuts are sometimes a pain, especially if youโre in an awkward position. They are always coming lose or bouncing out of place before theyโre ready to be bolted. Not with these! The wider spring base keeps them in place until youโre ready to bolt them in. This 8 pack isnโt a good deal because you are getting a much lower quantity, but if you are using many of them buy them 100 at a time, thatโs a great deal!
S**Y
Great
Made of high grade steel. Extremely strong. Very nicely cut threads. Very smooth. Springs are bell shaped so as to not get caught in strut channel holes. Springs hold nut firmly in place in channel. Very good quality all around for the price.
L**A
Extremely useful way to bolt unistrut together or connect other things to unistrut
I really like how you just push this in, twist, then you can slide it up and down the unistrut to position it precisely where you need it. This is a must-have if you are using unistrut for any application
T**P
Excellent Quality - Fits full and half thickness U-Channels
These channel nuts are thicker than other ones that I have. They appear to have a galvanized coating to minimize corrosion. The spring can be compressed to fit 1/2 thickness channels as shown in the photo. These are comparable to many others that are listed so be mindful of the price. Overall they work well and should last the life of your setup.
D**R
Strong and secure, works great.
Consistent spring tension and square seating in common strut profiles. Edges are clean and bite well under torque. Useful for add-on rails and small equipment mounts. Marked size helps at a glance. Coating resists shop scuffs. Solid staples for the strut drawer.
I**R
Nice nuts.
Just your basic strut channel nuts, they look just like the ones I get locally. Finish looks good. Threads look good. No issues.
Trustpilot
2 weeks ago
2 months ago