4 Set Stainless Steel Square U Bolt Kit for Boat Trailer, Heavy Duty U-Bolt with Nuts and Frame Plate for Automobiles Trailer, Ski Boat, and Sailboat Trailer (1/2" D x 3-1/16"W x 5-5/16"L)

★★★★☆ 4.0 27 reviews

$29.99
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$29.99
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Free shipping Free 30-day returns

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Product details

Management number 218115474 Release Date 2026/05/03 List Price $12.00 Model Number 218115474
Category
  • U-bolt size: 1/2"D x 3-1/16"W x 5-5/16"L (D x W x L), thread length: 2-1/2 inches, suitable for 3 x 3 inch square beams and shafts
  • Our u-bolt is made of 304 stainless steel, which is effective against corrosion and oxidation, and is extremely hard and durable. It’s ideal for long-term outdoor use.
  • Our products are made of high quality stainless steel materials and installation is very convenient, find the corresponding size of the beam and shaft, and use the tool to fix it. A single u bolt can support 4000lb of pull.
  • Package includes: 4*square U-bolts, 8*nuts, 8*flat washers, and 8*lock washers.
  • Widely Applications: It is suitable for fixing and connecting rectangular wood and metal parts. Such as boat trailers, Trailer axle leaf springs, mast, industrial projects, construction, etc.
UPC 639394776989
Brand MOOKEERF
Set Name 4 Set
Head Type Square
Size Name 1/2"D x 3-1/16"W x 5-5/16"L
Unit Count 4.0 Count
Part Number SUQARE-BOLTS-135X78
Thread Size 1/2-13 UNC
Thread Type Unc
Finish Types Passivated
Grade Rating industrial
Manufacturer Shenzhenshi Maoke Keji Youxiangongsi
Thread Class 3A
Thread Style Right Hand, Partial
Fastener Size 1/2 inch
Fastener Type U-Bolt
Item Diameter 0.5 Inches
Item Hardness Grade 8.8
Material Type Stainless Steel
Number Of Items 4
Thread Coverage Single End Threaded
Number of Pieces 4
Screw Head Style Square
Manufacturer Grade Grade 5
Set Screw Thread Type Unified National Coarse (UNC)
Maximum Shear Strength >=1666.67
Compatible Groove Diameter 0.5 Inches

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4 out of 5
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27 ratings | 11 reviews
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