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4 x M12 square U-bolts with nuts, washers, plate 3-1/16" wide

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$36 USD
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4 Sets Heavy Duty Square u Bolts 3 inch Wide,M12 Thread Size,304 Stainless Steel Square u-Bolts 3-1/16" W x 7-5/16" L,with Nuts,Bolt Plate and washers (4, M12 x 3-1/16" W x 7-5/16" L)

Square U-bolts in stainless steel with nuts, plate and washers. Durable and functional, designed for 3" x 6" square beams and shafts. One customer notes long-lasting quality, though thread cleanliness varies

Highlights

  • includes hardware kit
  • square U-bolt for 3x6 beams
  • stainless steel durability

Pros

  • heavy-duty stainless steel construction
  • includes nuts, bolt plate and washers
  • sizes match 3" x 6" square beams
  • contains 4 U-bolts for multiple mounting
  • clear sizing guidance on ID compatibility

Cons

  • thread cleanliness can be inconsistent

Best For

  • marine or outdoor railing installations
  • square beam mounting for machinery
  • equipment mounting on 3x6 inch frames
  • heavy equipment frame fastenings
  • support brackets on square shafts
  • DIY structural mounting projects

Features

  • U-bolts size: M12 diameter, 3-1/16" wide by 7-5/16" long
  • Includes 4 U-bolts, 4 frame plates, 8 flat washers, 8 lock washers, 8 nuts
  • Made of 304 stainless steel for corrosion resistance
  • Fits 3" x 6" square beams and shafts

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