U.S. Customers: Orders shipped from Canada may be subject to U.S. import duties, taxes, and/or tariffs as assessed by U.S. Customs and your carrier. These charges are not included in our product prices or shipping rates. You are responsible for any duties/tariffs/fees due on delivery or prior to delivery.
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Original & OEM Quality Parts

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Sq U-Bolt-3 1/16X4 5/16 - 57451 - 50-57451F1
Sq U-Bolt-3 1/16X4 5/16 - 57451 - 50-57451F1
Sq U-Bolt-3 1/16X4 5/16 - 57451 - 50-57451F1
Sq U-Bolt-3 1/16X4 5/16 - 57451 - 50-57451F1
Seachoice

Sq U-Bolt-3 1/16X4 5/16 - 57451 - 50-57451F1

LSN 50-57451 MPN 57451 UPC 719249574516 MFR Seachoice
Express
ON, Warehouse

"Express" items are automated and typically shipped out next available business day and delivered within 4 day.
In Stock
$13.29
Canadian Dollars
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Back to: Seachoice
Solid galvanized steel u-bolts with nuts and lock washers. Covers most U-Bolt applications. One per card.

Part #:50-57451
Manufacturer:SEACHOICE
Manufacturer Part #:57451
UPC:719249574516
Order In Multiples Of:1
Thread1/2"-13
A3-1/16"
B4-5/16"
C2"
TypeSQ
For-
Case12
Plate-
Threads1/2"-13

Variations
50-57200Sq U-Bolt-1 9/16X3 9/16(Bulk)
50-57201Sq U-Bolt-1 9/16X3 9/16
50-57210Sq U-Bolt-2 1/16X2 13/16(Bulk)
50-57211Sq U-Bolt-2 1/16 X2 13/16
50-57220Sq U-Bolt-3 1/16X2 13/16(Bulk
50-57221Sq U-Bolt-3 1/16X2 13/16
50-57230Sq U-Bolt-3 1/16X4 5/16-(Bulk
50-57231Sq U-Bolt-3 1/16X4 5/16
50-57240Sq U-Bolt-4 1/16X2 13/16(Bulk
50-57241Sq U-Bolt-4 1/16X2 13/16
50-57300Rd U-Bolt-1 3/4X4 3/8-(Bulk)
50-57301Rd U-Bolt-1 3/4X4 3/8
50-57310Rd U-Bolt-1 3/8X4 5/16-(Bulk)
50-57311Rd U-Bolt-1 3/8X4 5/16
50-57320Sq U-Bolt-1 5/8X3 9/16-(Bulk)
50-57321Sq U-Bolt-1 5/8X3 9/16
50-57330Sq U-Bolt-2 1/16X3 3/8-(Bulk)
50-57331Sq U-Bolt-2 1/16X3 3/8
50-57340Sq U-Bolt-2 1/16X7 7/8-(Bulk)
50-57341Sq U-Bolt-2 1/16X7 7/8
50-57350Sq U-Bolt-3 1/16X3 7/8-(Bulk)
50-57351Sq U-Bolt-3 1/16X3 7/8
50-57360Sq U-Bolt-3 1/16X4 7/8-(Bulk)
50-57361Sq U-Bolt-3 1/16X4 7/8
50-57400Sq U-Bolt-1 9/16X4 1/16-(Bulk
50-57401Sq U-Bolt-1 9/16X4 1/16
50-57410Sq U-Bolt-2 1/16X4 13/16-(Bul
50-57411Sq U-Bolt-2 1/16X4 13/16
50-57420Rd U-Bolt-2 3/8X5 3/8-(Bulk)
50-57421Rd U-Bolt-2 3/8X5 3/8
50-57430Sq U-Bolt-3 1/16X3 13/16(Bulk
50-57431Sq U-Bolt-3 1/16X3 13/16
50-57440Sq U-Bolt-3 1/16X3 5/16-(Bulk
50-57441Sq U-Bolt-3 1/16X3 5/16
50-57450Sq U-Bolt-3 1/16X4 5/16-(Bulk
50-57460Sq U-Bolt-3 1/16X5 5/16-(Bulk
50-57461Sq U-Bolt-3 1/16X5 5/16
50-57470Sq U-Bolt-3 1/16X6 5/16-(Bulk
50-57471Sq U-Bolt-3 1/16X6 5/16
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Our products are shipped from Canada!
Parts Warehouse:
Toronto, Ontario, Canada
Head Office:
Kingston, Ontario

About Us

Northern Marine is a Canadian supplier of OEM and premium aftermarket marine and RV parts and accessories. We focus on quality, accurate listings, and dependable fulfillment so you can maintain, repair, and outfit your boat or RV with confidence.

Our goal is simple: get you the right parts, shipped fast, with straightforward service you can count on.

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