Straight Line Clamps - 603 Series, 1-1/4

Straight Line Clamps - 603 Series, 1-1/4" (31.75 mm) Capacity, 600 lbs. Clamping Force

Marsoni

M251S

$117.29

Get it in 3 business days with 1 day shipping. Friday, May 29

Straight Line Clamps - 603 Series, 1-1/4" (31.75 mm) Capacity, 600 lbs. Clamping ForcePopular in assembly operations or used in conjunction with welding jigs. Straight line clamps provide quick, strong holding force. Most clamps lock in two positions allowing them to be used as a push or pull clamp. These models can be bolted or welded to a flat surface. Plungers extend out to clamp material against a fence or square surface. Model TN103 includes a 8 32 nylon spindle assembly (TN126). Model TN105 plunger is tapped for 5 16 18

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These are quite nice and also sturdy. Only complaint I have is that I bought a couple of these, and on one of them, only one of them, it was difficult to get the hidden mounts to go into the holes. I think it was probably a manufacturing defect thing. Also, on that particular one, it wasnt as level as the other. Not a show stopper, but if you need a perfectly level type of mounting situation, I would be careful here.

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Reviewed in the United States on September 14, 2025

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NatKenneally

Chelsea, US

★★★★★ 5

Great value/easy to install.

Size: 24x6 2Pcs, Color: Black, Size: 24x6 2Pcs, Color: Black

Great product and great value. Easy to install and adds a nice touch to a bathroom.

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Reviewed in the United States on March 21, 2026

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Betty D

Chelsea, US

★★★★★ 5

Easy hanging

Size: 31x7 2Pcs, Color: Black

Great size and easy to hang. Have purchased many for my home.

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Reviewed in the United States on May 20, 2026

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David S.

Massapequa, US

★★★★★ 5

Look great!

Size: 40x7 2Pcs, Color: Black

Love the way these turned out in my office! I connected 3 shelves in a row across the wall to make one long shelf and it looks great!

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Reviewed in the United States on April 16, 2026

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Chris snyder

Lake Worth, US

★★★★★ 3

Nice looking. Not very sturdy. Easy to install.

Size: 40x7 2Pcs, Color: White, Size: 40x7 2Pcs, Color: White

Update: The shelf slopes at about a 45° angle when you put anything more than about a pound on the outside edge of it. Perfectly fine up against the wall. Just seems like the braces inside aren't long enough to really give the stability needed. Bracket is nice and tight against the wall. Had to add braces underneath to hold a small plant, a photo and a small container. Wa sloping more and more each week The shelves look great and we're pretty easy to install. They have a single bracket that is very easy to mount to the wall and get nice and level.. The downside is that the bracket isn't long enough to go between studs. This seems like a pretty simple oversight. I mean why wouldn't you make it long enough to go stud to stud? Secondly and maybe more fatally the bars that go inside the shelf to support them coming out from the wall are significantly shorter than the depth of the shelf. Unfortunately this means the shelf is only supported the first few inches coming out from the wall so there is the potential for a slight lean forward.. The anchors they send are trash. Cheap soft plastic that just tears and bends with a screwdriver. I would suggest spending $2 and grabbing your own anchors from Ace or home Depot. The shelves are essentially made of a high grade cardboard kind of wood. They are not going to support much weight or last for years and years however there incredibly affordable and look nice and easy to install. Long as your expectations are right you'll be happy.

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Reviewed in the United States on October 23, 2023