12 Pack - 6" inch Spring Clamp Large Super Heavy Duty Spring Metal Black - 3 inch Jaw opening

These have a good clamping strength. Have placed multiple orders as they have so many uses. If they open wide enough for what you would use them for then they are fine. Have used them to hold tarps in place over the winter without issue. A little oxidation but no rust at all.

Just what I needed, good size, well made, and holds tightly in place.

These 6" strong spring metal clamp works great. Strong spring provides a good grip for this size. You can use them for a lot of things and they will stay in place, even in windy weather. The rubber tips do fall off very easy, so be careful you don't lose them. You can use them to hold your greenhouse skin down and they work well.

I've had these clamps for over a year now, using them in photo and film shoots. They are sturdy and heavy-duty. This was a solid purchase until the rubber ends of the clamp started falling off ALL THE TIME from the first or two times. It didn't bother me for the most part, but sometimes a grip from the rubber ends is needed either for a better grip or not to scratch the surface I'm using it on. I try not to lose them to glue them back, but you can't always keep track of them during a shoot.

These small clamps are valuable in my shop for a number of uses. Nice firm hold.

I have a two piece tv stand, my tv is attached to a separate stand and is very heavy. I bought these clamps to clamp the tv stand at the separate pieces to move it with the tv on it. Worked like a champ. They have plenty of clamping pressure and not difficult to open the jaws. My next stand move will be just as easy.

Do you have children who love a good blanket fort? Do you have children who are known to break said blanket fort roughly five minutes after you constructed it? These clamps are for you. I'm serious. I purchased these clamps for a good old-fashioned blanket fort and I am glad that I did. They make it super easy to clamp that blanket onto the back of your wooden dining room chair and that blanket isn't going anywhere. I've even clamped them to the tiny lip on a piece of furniture. It doesn't take much. But these are guaranteed to give you more than a five-minute break because your kids won't be breaking their blanket fort. Do yourself a favor and buy them. I plan to use them this summer to clamp a tarp to tree limbs for the kids to have a makeshift tent in the yard. I'll find any way to get my kids outside or to encourage creative play in a fort or tent and these are wonderful.

The clamping function works as designed. Flaw #1 The PVC tips and grips. The PVC is black, very soft and not permanently attached to the clamp. When the clamp is engaged, the PVC tips seem to adhere to whatever is being clamped....bare wood and painted wood. So while working on a home project, I clamped applied Alex Flex to my beadboard, placed it and reached for my new clamps to hold while I get my nail gun. After nailing, I left the clamps in place for maybe 25 to 30 minutes to allow for the Alex Flex to set. I removed the clamps and was surprised to find black PVC where ever the clamp touched.....marring the surface of my project. I tested the clamps on other surfaces with the same result. Flaw #2 - As sticky as the tips and grips are, neither will stay on my clamps. So, when I attempted to removed the clamps the tips stuck to my project and one of the grips came off. Further inspection revealed that none of the grips or tips would stay on if I even tried to slide them off with little to no manipulation. My fix - I applied superglue to the exterior clamping surfaces of the tips and gorilla glued the tips and grips inside. Now, the clamping surface is slick and will release when the clamp is released as well as both staying on the clamps. Buy them again? No.

Very well made with a strong grip. Used them to hold a tarp to my carport. The plastic ones are garbage for this purpose. A couple of the grips slid off, but not a big deal. A heat gun will solve that issue. They are just as good as the expensive ones at Home Depot.

Good quality, exactly what I required for clamping a 17ft stitch and glue kayak together while the glue dried. Stronger grip then the plastic versions. Plastic grip covers can work loose but not a big problem to put the back again

I was half expecting a semi weak clamp with the cuts and fabrication deformations, but the clamping force although not arthritis inducing as I recall from those solid steel clamps used on the car-boots, these have a very strong clamping force that exceeds my dad's plastic 6" clamps, so win win!. The rubber tips will come off when force is applied towards the handle as expected, use hot glue to stop that. The four turn spring is 3 mm diameter and is loose in its fixing so breakage repairable. The securing pin is under spec for my liking may require a bolt replacement in the future. The rubber is neither stiff nor soft. 55/65 mm jaw width hilt/tip. Made in china engraved on each handle inline with the rubber grip. I bought these to hold together wood when gluing and these will do an excellent job. Good Quality and excellent price!

Plastic tips do slip off but great otherwise.

Las pinzas se sienten sólidas. Preferí comprar estas metálicas porque son más duraderas. El problema es que son un poco más pesadas que las de plástico pero no tengo problema con ello. Las uso para estirar una pantalla verde. Excelente compra.