You may also like
Bolts 3/8-16 X 2-5/8 X 2 U-Blt &Nt U (Bag 10)
Additional Notes
- Other sizes and quantities available by request
Manufacturer Resources
Product Specs
- Arra Compliant:
- C
- Buy American Compliant:
- C
- Dimensional Standard:
- ASME B18.2.2
- Division:
- Electrical H1
- Fastener Head Width:
- 0.551 - 0.563 in.
- Fastener Height:
- 0.320 - 0.337
- Fastener Length:
- 2/5/08
- Fastener Width:
- 2
- Field Application:
- Electrical, Plumbing, Heating, Air Conditioning Industries
- Language Code:
- EN
- Material Standard:
- U-Bolt: ASTM A307 / Nut: Grade A per ASTM A563
- Neurspe:
- https://ideadigitalasset.com/DAMRoot/Original/10035/11237_ID-SPE-v1-ID-SPE-v1-U-Bolt_St-Zn.pdf
- Number Of Nuts:
- 2
- Order Minimum Imperial:
- 10
- Order Minimum Uom Imperial:
- EA
- Pack Type:
- Bag
- Product Group:
- Fasteners
- Product Height:
- 3 in
- Product Length:
- 6 in
- Product Weight:
- 953 g
- Product Width:
- 152.4 MM
- Sub Division:
- Electrical-E H2
- Thread Direction:
- Right Hand
- Thread Per Inch:
- 16
- Thread Standard:
- ANSI/ASME B1.1
- Department:
- Electrical
- Product Subgroup:
- Bolts
- Product Type:
- U-Bolt with Hex Nuts
- Type2:
- U-Bolt with Hex Nuts
- Series:
- UB
- Product Finish:
- Zinc
- Product Details:
- U-Bolt with Hex Nuts
- Pipe Size Dimension:
- 1/1/02
- Product Material:
- Steel
Metallics UB021 – Frequently Asked Questions
1) What thread size are the Metallics UB021 U-bolt legs, and are nuts included?
Both legs are 3/8-16, right-hand thread, cut to the ANSI/ASME B1.1 thread standard, so standard 3/8-16 hex nuts thread on. Two hex nuts ship with each U-bolt, one per leg, so you do not need to buy nuts separately. Each bag holds 10 U-bolt and nut sets.
2) What is the inside opening on the UB021 U-bolt between the legs?
The UB021 is a 2 inch width U-bolt, measured across the legs. That is the number that decides whether your pipe, conduit, or tube drops into the bend, so match it against the outside diameter of what you are clamping rather than the nominal pipe call-out.
3) Does the Metallics UB021 U-bolt meet Buy American requirements for a federal or public project?
It is flagged both ARRA compliant and Buy American compliant, which is what a government, school, or public-works submittal usually asks for on fastener line items. Country of origin is listed as multiple, so if your contract requires a single named origin on the certification, confirm the origin on the lot you receive.
4) Is the Metallics UB021 U-bolt rated for outdoor or damp locations?
It is steel with a zinc finish. Zinc plating handles normal indoor and sheltered outdoor service, but it is not stainless. For continuous wet, coastal, or chemically aggressive environments, specify a stainless U-bolt or a hot-dip galvanized one instead.
5) How is the Metallics UB021 sold, and can I get other sizes?
It ships as a bag of 10, with a minimum order of 10 each, so you are buying by the bag rather than the piece. Metallics makes the UB series in other sizes and pack quantities, available by request if 3/8-16 with a 2 inch width is not the opening you need.
6) Will the nuts on the UB021 take a standard 3/8 inch wrench or socket?
Yes. The hex nuts measure 0.551 to 0.563 inch across the flats and 0.320 to 0.337 inch in height, which is the standard dimension for a 3/8-16 hex nut under ASME B18.2.2. A 9/16 inch wrench or socket fits them.
7) What jobs is a Metallics UB series U-bolt with hex nuts normally used for?
It is a clamping and hanging fastener for electrical, plumbing, heating, and air conditioning work: strapping conduit or pipe to a strut or angle, tying down equipment feet, securing tube runs to a support member. The bend wraps the round member and the two nuts pull it down against a drilled plate or channel.
How fast can I get the Metallics UB021 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the
continental
U.S.
Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit,
reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Metallics UB021 come with a warranty?
Absolutely. The Metallics UB021 is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Metallics UB021?
You can call, text, or email our expert support team for fast answers. We’re here to help with
product
selection,
installation tips, and troubleshooting. Contact Us
Why buy the Metallics UB021 from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support,
and
rewards on
every order.
Our team is always ready to help you choose the right product for your project.