Square U Bolts - Galvanized Steel

Hot-dip galvanized steel square bend U-bolts for outdoor posts, beams and lumber. 3/8"-16 sizes come in 2", 3", 4" and 6" inside width and 3" to 9" long; 1/2"-13 sizes come in 2-1/8" and 3-1/8" width, 4" and 6" long. Made in the U.S.A. and supplied with 2 galvanized hex nuts.

Specifications

Material: steel, hot-dip galvanized
Thread: 3/8"-16 and 1/2"-13 UNC
Inside width: 2" to 6" (3/8"); 2-1/8" and 3-1/8" (1/2")
Inside length: 3" to 9"
Thread length: 1-1/2" to 5-5/8" (3/8"); 2" (1/2")
Includes 2 galvanized hex nuts
Made in the U.S.A.

U Bolts supplied with 2 Galvanized Hex Nuts

Common Uses

Sign posts and fence posts
Deck, dock and pier framing
Trailers and farm equipment
Outdoor square tubing

FAQ

Do these come with washers?
No. Galvanized square U-bolts are supplied with 2 galvanized hex nuts. Galvanized washers are sold separately.

How is a square U-bolt measured?
A is the rod diameter and thread, C is the inside width between the legs, B is the inside length from the inside of the top to the end of the legs, and T is the thread length.

Which finish should I choose?
Zinc plated steel is good for indoor and dry or sheltered outdoor use. Hot-dip galvanized steel has a much thicker zinc coating for outdoor, wet and marine-area use. 18-8 stainless steel resists rust best and is the choice for wet, marine and food areas.

Can you make a U-bolt size that isn't listed?
Yes. We custom manufacture square and round bend U-bolts in plain, zinc plated, galvanized and stainless steel. Use the Custom Manufactured U Bolts page to request a quote.

Free shipping on orders over $100, and orders placed before noon EST ship the same day. Purchase orders are accepted from government agencies, schools, hospitals, municipalities and companies with established credit with The Nutty Company, Inc.