U-bolts 1/2in x 2-1/16in x 4-3/4in stainless steel square with plates and nuts (5 pack) vs 4 x M12 square U-bolts with nuts, washers, plate 3-1/16" wide

Overall winner: U-bolts 1/2in x 2-1/16in x 4-3/4in stainless steel square with plates and nuts (5 pack)

Key Differences

LIONMAX (A) is a 1/2" diameter U-bolt with a 2-1/16" ID and 4-3/4" length, sold as a 5-pack and includes plates and nuts; SRZTXU (B) is sold as 4 sets of M12 square U-bolts ~3-1/16" wide, includes nuts, plates and washers and is noted to fit 3x6 beams. Choose LIONMAX if you need the specific 1/2" x 2-1/16" dimensions and a higher-rated listing; choose SRZTXU if you need square M12 U-bolts sized for 3x6 beams and the included washers

U-bolts 1/2in x 2-1/16in x 4-3/4in stainless steel square with plates and nuts (5 pack)

U-bolts 1/2in x 2-1/16in x 4-3/4in stainless steel square with plates and nuts (5 pack)

LIONMAX • ★ 3.9/5 • Budget

Stainless steel square U-bolts set with plates and nuts for automotive and trailer use. Durable, heavy-duty construction with precise dimensions for a tight fit. Customer notes suitability for boat trailers

Pros

  • stainless steel construction
  • heavy-duty design
  • includes plates and nuts
  • sized for 1/2in diameter bolts

Cons

  • dimensions may require verification against project
  • no OD sizing listed beyond ID width
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4 x M12 square U-bolts with nuts, washers, plate 3-1/16" wide

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

SRZTXU • ★ 3.7/5 • Budget

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

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

Cons

  • thread cleanliness can be inconsistent
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Head-to-Head

CriteriaWinner
Price LIONMAX
Durability Tie
Versatility SRZTXU
User Reviews LIONMAX