Best Fine Thread U bolt

Hardware Essentials 320898 Square U-Bolt-3/8X3Lx4W, Zinc

Square U-bolts are great for attachment to square shaped posts.
U bolt measurements are as follows – diameter (3’8”), thread count (16), inside length (3”), inside width (4”).

Max reach: 3-3/8-in max spread: 4-in. Reversible two-jaw design for inside or outside pulls. Chrome vanadium steel yoke and jaws.
Fine thread center bolt for maximum torque and minimal effort.
Reversible two-jaw design for inside or outside pulls.

UNIVERSAL FIT - Universal roof box u-bolt clamps fit for car crossbars within 80mm, can accommodate luggage racks up to 40mm/1.57 inches thick, widely used in hatchbacks, sedans, SUVs, off-road vehicles, etc. NOTICE: Not fit for THULE Roof Box.
SIZE: Inner width 83mm/3.27 inches, outer width 90mm/3.54 inches, screw diameter 7mm/0.27 inches, 40mm/1.57 inches thick.
NOT EASILY DEFORMED - Roof rack mount u-bolt clamps has a rubber gasket and a plastic back plate, which can protect your car from scratches to the greatest extent, and can increase friction, which has a high hardness, good confinement effect, strong bearing capacity.
GALVANIZED STEEL MATERIAL - Universal roof box u-bolt clamps using galvanized steel material, durable, alkali resistance, and has a clear thread, uniform force and not easy to slip to improve overall stability.
PACKAGE INCLUDED - Roof box rack mounting fitting U-Bolt clamp kits included 4pcs galvanized U bolts, 4pcs plastic backplane, 4pcs rubber gasket, 8pcs heavy lock nuts, 2pcs strap.

U-bolt Size: 1/2" D x 3-1/16" W x 4-5/16 L, thread length: 2-1/2" inches, suitable for 3" x 3" square beams and shafts, (order Please check the measurement size carefully before).
Tips: It is recommended to use lubricant during installation to prevent wear. Use a hand wrench or socket ratchet when installing the nut. Do not use a high-speed power tool or impact tool to tighten the nut..
304 stainless steel material: U-bolts are made of 304 stainless steel, strong and durable, each bolt can withstand 100LBS.
You can get: (4) U-bolts, (8) heavy hex stainless steel nylon lock nuts, (8) flat washers, (8) lock washers. These are only half the price of the hardware store, with these you can spend less time repairing and more time boating.
100 After-sales service: Our U-bolts provide a one-year warranty service. If you have any questions, please feel free to send us an email via Amazon. We will solve it for you within 24 hours. Do not worry..

Hex Nut Size: 10 x 5mm / 0.39" x 0.2"(Hex Width*H).
Frame Plate Size: 50 x 18 x 2mm/ 1.97" x 0.71" x 0.08"(L*W*T).
Round Washers Size: 18 x 6 x 1mm / 0.71" x 0.24" x 0.04"(OD*ID*T).
Package Content: 4 x U-Bolt, 8 x Nuts, 8 x Round Washers, 4 x Plates.
Material: Steel construct u bolt, galvanized surface treatment, bending forming processing technology with great performance in antirust and corrosion resistance, high hardness and good tensile strength..
Application: U-bolt is used to fasten or attach locking components to pipes, wood, etc. Just insert and tighten the nuts at both ends. It is suitable for the connection of boats, pipelines, trailers, and industrial steel structure conduits..

Inside Width/Compatible Pipe Diameter: 1 inch.
Used to secure pipe, conduit, cable or other cylindrical objects.
Requires pre-drilled holes (hole should be the same diameter as the threaded post).
Thread Type: Coarse, Thread Class: UNC-2A, Point Style: Blunt.

UHF or SO-239 Thread Trunk mount accepts Optional Antennas having a PL-259 " UHF , M or PO " base thread..
For Standard Sedan type Trunks. Includes 15ft RG-58A/U Coax cable with PL-259 Connector..
Great for Amateur radio & Two way mobile antennas having an UHF base thread..
Fits ANLI WH-713 and WH-717 DualBand antennas, & other " UHF" ( SO-239 ) type base thread antennas..
Heavy Duty with 4 Allen bolt connecton and Ability for slight angle Adjustment.

Material: Made of high quality 304 stainless steel, excellent corrosion resistance and rust resistance.
All thread: Threaded rods and studs are fasteners that screw into threaded nuts or tapped holes, allowing for assembly of components..
Applications: Perfect for anchor bolts, clamps, hangers and U-bolts and many more projects where a metal rod with continuous threading or no head or fashioned tip is required..
What you get - 20Pcs x Stainless Steel Threaded Rod. If you have any question about this product, please feel free to contact us !.

Material: Made of high quality 304 stainless steel, excellent corrosion resistance and rust resistance.
All thread: Threaded rods and studs are fasteners that screw into threaded nuts or tapped holes, allowing for assembly of components..
Applications: Perfect for anchor bolts, clamps, hangers and U-bolts and many more projects where a metal rod with continuous threading or no head or fashioned tip is required..
What you get - 10Pcs x Stainless Steel Threaded Rod. If you have any question about this product, please feel free to contact us !.