Best Pre drilled U bolt

(4) Stainless Steel Square U-Bolts Boat Trailer U Bolt Ubolt 1/2\ D x 3 1/16\ Inside Width x 5 5/16\ Inside Length

Overall Size: 100 x 64.2mm / 3.94 x 2.53"(L*W).
Perfectly Suitable for Square Tube Size: 50 x 50mm / 1.97"..
∪Product Features: Strong and durable, rust resistance, moisture resistance, and corrosion resistance. The surface without burr and thread good grip, u clamp still perform well in rainy and humid seaside environment..
∪Application: Square U-Bolt Used on fix or connect the locked parts to rectangular wood and metal objects, such as cars, RVs, sailboat trailers, pipe, tube, plumbing and other Industrial Applications..
∪Steps for Usage: 1. Choose the corresponding square U shaped bolt according to the size of the pipe. 2. Drill Holes in the Connection. 3. Lock Nut and Flat Washer..
∪Package Content: 4 x U bolts, 4 x plates, 8 x nuts, 8 x flat washers..

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).

PRE-DRILLED. U-channel sign posts have pre-drilled holes measuring 3/8” in diameter located at the top 30 inches of the post..
MOUNT MULTIPLE SIGNS. Holes are 1 inch on center enabling you to easily align and mount your signs that are 12" x 18" or smaller..
MEDIUM WEIGHT. U-Channel posts weigh 1.12 pounds per foot of length..
INSTALLATION. U-Channel posts have a tapered side for quick installation. Pack contains 3 posts..
PROTECTIVE COATING. Baked-on green enamel coating enhances outdoor life and prevents rusting of the steel post..

【FITMENT】This roof box u bolt clamps is suitable for most cars on the market, can be used for up 85mm(3.34 inch) width and 40mm(1.57 inch) thick luggage rack..
【HIGH-QUALITY MATERIAL】u-bolt clamps using galvanized steel material, durable, good alkali resistance, acid resistance, corrosion resistance, strong temperature resistance..
【FEATURE】This product has a rubber gasket and a plastic back plate，which can protect your car from scratches to the greatest extent, and can increase friction to improve overall stability..
【EASY TO INSTALL】: No need to drill and install directly. Accurate mounting size and long-enough bandages, suit your roof box and daily opening and closing box..
【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, 2 bandages，1 Hole Sealing Sticker..

2 Hour Fire Rated At 1850°F (1010°C)(5) 1 1/4” Chrome Plated Active Locking Bolt.
Glass Re-locking system to prevent drill attacks and Bolt Detent to engage locking bolts when door is closed--(2) Adjustable, Removable Shelf and....
(1) Pre-Drilled 1/2” Diameter Anchor Hole--Full Length Interlocking Channel on hinge Side and (2) Heavy Duty External Hinges - Door swings +180°.
PLEASE READ BEFORE PURCHASING: Undeliverable to New York with zip codes beginning in (100-104) & (110-119), some remote areas such as islands, areas....
SEE MORE IN-DEPTH DETAILS ON THIS PAGE BELOW ADVERTISEMENTS.

...ce your garage door. Different model garage doors have different outside center stiles. The pre-existing outside center stile holes in the strut may or may not line up with your door’s stiles..
Not to worry this is common and not a problem. The included self tappers will drill holes in the strut to attach it to your stiles no matter their placement..
Included is 2 - 8 foot door strut support braces, 1 Strut Support Brace Coupler, Assembly Hardware, and Mounting Hardware. Because it’s shipping length does not exceed 96” it can be shipped through standard shipping methods..

PRE-DRILLED. U-channel sign posts have pre-drilled holes measuring 3/8” in diameter located at the top 30 inches of the post..
MOUNT MULTIPLE SIGNS. Holes are 1 inch on center enabling you to easily align and mount your signs that are 12" x 18" or smaller..
MEDIUM WEIGHT. U-Channel posts weigh 1.12 pounds per foot of length..
INSTALLATION. Order with a portable sign base. Pack contains 4 posts..
PROTECTIVE COATING. Baked-on green enamel coating enhances outdoor life and prevents rusting of the steel post..

Inside Width/Compatible Pipe Diameter: 3/4 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.

...o assist with opening and closing. Besides, the tongue box has a cam lock and key mechanism to prevent thefts..
EASY TO ASSEMBLE - The trailer storage box is very easy to assemble with the mounting hardware(2 U-Bolts) and instructions. The trailer tongue box comes with pre-drilled holes. If they don't align with your trailer rails, please drill new mounting holes by yourself..
WARRANTY- 1-Year Guarantee! If the mounting hardware components or keys are missing or defective, please contact us for a free replacement..