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Stanley National Hardware 2193BC #546-5/16"x2-1/2 x5 U Bolt w/Plate & Hex Nuts in Stainless Steel

Stanley National Hardware 2193BC #546-5/16"x2-1/2 x5 U Bolt w/Plate & Hex Nuts in Stainless Steel

Q: What is the thread size so that I can order extra nuts?

5/16-18 (course). Fine thread would be 5/16-24. Checked with a thread gage and confirmed 5/16-18

Q: Is there a link for a u bolt to fit a 1-3/4" od pipe, and long enough to go through 4x4 lumber and allowing for bolts and a little xtra room?

No, I've used it supporting cat5 to at giant tent in a industrial setting on 2'' conduit

Q: What would be the one for a 6" pvc pipe?

I purchased a 2” for a 2”pipe and it fit perfectly. I assume you would therefor need a 6”

Q: Can you please send a direct link for the u bolt that will fit around the 4”pvc pipe ?

https://www.amazon.com/National-Hardware-N222-174-2190BC-plated/dp/B000BPRP8Y/ref=psdc_16409751_t2_B000BPK8F6

Product ID: 251199692

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Details

Material
Stainless
Thread Size
5/16"-18
Exterior Finish
Zinc
Manufacturer Grade
Grade 8
Head Style
Cup

🔩5/16"-18 UNC Thread Size

🌧️300 Series Stainless Steel Corrosion Resistance

🛡️Grade 8 Hardness for Maximum Strength

Frequently Bought Together

National Hardware N222-471 2193BC U Bolt in Stainless Steel

Hillman 3002 5/16-18-Inch Stainless Steel Wing Nut, 4-Pack

Description

🔧 Secure your projects with strength and style—because your work deserves the best!

TRUSTED LEGACY - Backed by National Hardware’s century-long commitment to quality and innovation, made proudly in the USA.
UNMATCHED DURABILITY - Crafted from premium 300 series stainless steel with 18% chromium for superior rust and corrosion resistance—built to last indoors and out.
PRECISION ENGINEERING - 5/16"-18 UNC thread size combined with Grade 8 hardness ensures a secure, high-strength fastening solution for demanding applications.
VERSATILE APPLICATION - Perfectly designed for automotive, plumbing, wood, and pipe fastening—adaptable to both professional and DIY projects.
COMPLETE FASTENING KIT - Includes U-bolt, plate, and hex nuts for a hassle-free installation experience—everything you need in one package.

The Stanley National Hardware 2193BC U-Bolt is a high-grade fastening solution made from 300 series stainless steel with 18% chromium, offering exceptional corrosion resistance and durability. Featuring a 5/16"-18 UNC thread size and Grade 8 hardness, it delivers superior strength for automotive, plumbing, wood, and pipe applications. This kit includes the U-bolt, plate, and hex nuts, ensuring a complete and reliable fastening system trusted by professionals and DIYers alike.

Specifications

Material	Stainless Steel
Thread Size	5/16"-18
Exterior Finish	Zinc
Manufacturer Grade	Grade 8
Head Style	Cup
Colour	Stainless Steel
Fastener Type	U-Bolt
Brand	National Hardware
Thread Type	UNC
Item Diameter	0.31 Inches
Thread Style	Right Hand
Item Hardness	Grade 8
Size	#546-5/16"x2-1/2"x5"
Metal Type	Stainless Steel
Head Type	Button
Maximum Shear Strength	50-60 ksi (345-414 MPa)
UPC	038613191440
Global Trade Identification Number	00038613191440
Manufacturer	KWIK9
Country of Origin	USA
Item model number	N222-471
ASIN	B000BPK8F6

Have a Question? See What Others Asked

What is the thread size so that I can order extra nuts?

Is there a link for a u bolt to fit a 1-3/4" od pipe, and long enough to go through 4x4 lumber and allowing for bolts and a little xtra room?

What would be the one for a 6" pvc pipe?

Can you please send a direct link for the u bolt that will fit around the 4”pvc pipe ?

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