Desertcart purchases this item on your behalf and handles shipping, customs, and support to Japan.
🔧 Lock in strength and style with rustproof reliability!
The National Hardware N222-471 U Bolt is a premium-grade, stainless steel fastening solution engineered for durability and corrosion resistance. Featuring Grade 8 steel strength and UNC threading, it’s designed for seamless installation on pipes and wood in demanding environments including marine and industrial settings. Complete with plate and nuts, this rust-free U bolt delivers professional-grade performance for a wide range of applications.
| ASIN | B000BPK8F6 |
| Brand | National Hardware |
| Color | Stainless Steel |
| Colour | Stainless Steel |
| Compatible Groove Diameter | 0.31 Inches |
| Customer Reviews | 4.4 out of 5 stars 256 Reviews |
| Exterior Finish | Zinc |
| Exterior finish | Zinc |
| Fastener Type | U Bolt |
| Fastener type | U Bolt |
| Finish Types | Stainless Steel |
| Global Trade Identification Number | 00038613191440 |
| Grade Rating | Grade 2 |
| Head style | Cupped |
| Item Dimensions | 14.2 x 10.2 x 2.5 centimeters |
| Item Hardness | Grade 5 |
| Item Highlight | Rust-Free Stainless for Marine and Outdoor Mounting to Pipe or Wood; Plate and Nuts Included |
| Item Type Name | Stanley National Hardware N222-471 2193BC U Bolt in Stainless Steel, 5/16" x 2-1/2" x 5" |
| Item Weight | 9 g |
| Manufacturer | National Hardware |
| Manufacturer Grade | Grade 8 |
| Manufacturer grade | Grade 8 |
| Material | Steel |
| Material Type | Steel |
| Maximum Shear Strength | 50-60 ksi (345-414 MPa) |
| Metal Type | Stainless Steel |
| Model | N222-471 |
| Number Of Items | 1 |
| Number of Packs | 1 |
| Number of Pieces | 1 |
| Outside Diameter | 0.31 Inches |
| Part Number | N222-471 |
| Screw Head Style | Cupped |
| Set Screw Thread Type | Unified National Coarse (UNC) |
| Size Name | #546-5/16"x2-1/2"x5" |
| Thread Class | 1A |
| Thread Style | Right Hand |
| Thread Type | UNC |
| UPC | 038613191440 |
| Unit Count | 1 Count |
A**X
As described, seem good quality
As described, seem good quality. The nuts provided are not locknuts, I had to replace them to use on a boat.
P**N
Decent quality stainless steel u-bolts.
I used these to bolt in some aluminum tubing for a removable handrail. Since my boat is made out of aluminum, these were a must. The best part for me, thy are threaded for us people in the USA. NOT METRIC. I used the backing plate, but used nyloc nuts instead of the supplied nuts. If you need a solid, non rusting u-bolt, these will do the job.
I**E
it is what it is
It is as stated, worked fine for my project.
B**K
Not the correct size, but easy to make fit!
My search for a replacement stainless steel U-bolt for my antenna mast found this one. The existing U-bolt is steel & was rusting after years exposed to the elements. As my review title says, this U-bolt is too narrow at 1-1/8". I needed a 1-1/4" U-bolt, the standard antenna mast size. This is stainless steel, so there's no problems with resizing it on a piece of 1-1/4" pipe. No need to worry about any scrapes or nicks rusting on stainless steel. The resizing was very easy to do on an old piece of pipe. I Hammered the U-bolt onto the pipe, then use a vise to finalize the shape. To my surprise, the plate still fits perfectly! :) The pros: + $6.46, which included free shipping, or $2.10 + free shipping if you get this when it's an "add-on item"! + 300 grade Stainless steel, so it will never rust & it will last forever! + Comes with a stainless steel plate & 2 stainless steel 1/4-20 nuts. The cons: + Doesn't come in 1-1/4" size. I bought 3 of these & I may up the product rating to 5 stars after I install one of these U-bolts. ► Update - August 8, 2013 I installed one of these today on a 1-1/4" antenna pole & the resizing made the U-bolt a perfect fit. I've decided to up my product rating to 5 stars. ► Update October 21, 2015 I have 2 of these installed now. The first one I installed on an antenna pole, 2 years ago, still looks like new! Not wanting to be without a couple on hand, I just added another one of these on my Amazon order. I couldn't pass up the $2.10 + free shipping price!.
K**I
Good clamp
Used for exhaust pipe fix and it holds tight
Trustpilot
1 month ago
1 week ago