4Pack Square U-Bolts 3-1/16" W x 5-5/16" L, 304 Stainless Steel U Bolts M12 with Washers & Nuts for Replacement Parts and Accessories for Ski Boat, Fishing Boat or Sailboat Trailer

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Management number 218171154 Release Date 2026/05/03 List Price $10.00 Model Number 218171154
Category

4 Pack 304 Stainless Steel Square U-Bolts Suitable for boats, plumbing, and other home and industrial applications. Features 304 Stainless Steel Material, strong and durable, rust resistance, moisture resistance, and corrosion resistance. Designed for fastening products to pipe, wood, etc. Suitable for automotive, plumbing and other home and industrial applications Specification: Material: 304 stainless steel Thread Dia. : M12 Square Rod Size: 102mm / 4" Rod Diameter: 12mm / 0.4" Total Length: 145mm / 5.7" Washer ID: 25mm / 0.9" Hex Nut: 21mm / 0.8"(Hex Width) Frame Plate: 130 x 25 x 2mm / 2.36" x 0.8" x 0.08"(L*W*T) Package include: 4 x Square U-BoltsNOTICE: 1. Reduce friction coefficient: a. It is recommended to apply water wax or add lubricant (such as 40# oil) on the surface. b. Clean thread surface (no ash sand, blasting slag, debris). 2. Correct operation method: a. Must be perpendicular to the axis of the thread, do not tilt. b. In the tightening process, the force must be uniform, and the tightening torque must not exceed the safe torque. c. Use torque wrenches or socket wrenches whenever possible and avoid adjustable wrenches or electric wrenches. d. Avoid using at high temperature, do not rotate quickly when using, to avoid a rapid rise in temperature.

  • U-Bolts SIZE: Thread Dia. : M12; Fit Square Rod Size: 102mm / 4"; Rod Diameter: 12mm / 0.4"; Total Length: 145mm / 5.7";Hex Nut: 21mm / 0.8" (Hex Width); Frame Plate: 130 x 25 x 2mm / 2.36" x 0.8" x 0.08"(L*W*T); Washer ID: 25mm / 0.9"
  • Square U-Bolts Material: Made of 304 stainless steel, strong and durable, have great performance in rust resistance, moisture resistance, and corrosion resistance.
  • Feature: 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.
  • Package Content: 4 x U-Bolt, 8 x Nuts, 16 x Round Washers, 4 x Plates.
UPC 618202444289
Brand ZIQI
Model ZQUS-UBolts-4pcs-silver
Set Name 4 Pack
Head Type Square, Hex
Size Name 3-1/16" W x 5-5/16" L
Unit Count 4.0 Count
Part Number ZQUS-UBolts-4pcs-silver
Thread Size M12
Thread Type Metric
Finish Types Glossy
Grade Rating Grade 304
Manufacturer ZIQI
Thread Style Right Hand, Standard
Fastener Size 3-1/16" W x 5-5/16" L
Fastener Type U-Bolt
Item Diameter 12 Millimeters
Item Hardness Grade 2
Material Type Stainless Steel
Exterior Finish Stainless Steel
Thread Coverage Double End Threaded
Number of Pieces 4
Screw Head Style Hex, Round, Square, U-Bolt
Manufacturer Grade Grade 304
Set Screw Thread Type Metric Coarse
Compatible Groove Diameter 3.94 Inches

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