can 2 of them be deployed in tandem for an 8" duct?

Yes, I’m sure that they could. They open completely up and should be able to be linked together just like most hose clamps. I’m using all of mine on 4 inch hoses now or I’d try it for you, but I’m pretty sure it will work.

I think I've overtightened the fastener and need to get a new or better one. What's max torque allowance recommended?

I don't know what the max torque is but I know I've exceeded it several times. I really do not like these. I switched to the kind you tighten with a screwdriver and I find them to be much much better.

Where are these clamps manufactured?

I don't know for sure, but probably China, like everything else these days. I will say they are pretty good clamps and I haven't had any problem with cranking on them with sufficient force.

How much weight does a hose clamp support?

I have used them as part of a dust collection system where they are not supporting anything more than 5 or 6 feet of 4” hose.

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4 Inch Thumb Screw Key Adjustable Stainless Steel Hose Clamps 5 Pack

4 Inch Thumb Screw Key Adjustable Stainless Steel Hose Clamps 5 Pack

Product ID: 115409504

Details

Brand
Fulton Tools
Color
Silver
Item Weight
0.15 kg
Manufacturer
Fulton Tools
Material
Steel
Outside Diameter
4 inches

🔧Tool-free quick adjust

🔵Ergonomic blue polymer key

🛡️304 stainless steel durability

72.63 DT

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Description

🔧 Tighten with ease, secure with confidence—upgrade your clamp game today!

MULTI INDUSTRY READY - Perfect for automotive, marine, agriculture, HVAC, and home projects—be the pro with the right clamp.
VERSATILE SIZE RANGE - Adjusts smoothly from 3.4” to 4.7” diameter, fitting a wide variety of hoses and ducts.
ERGONOMIC BLUE KEY DESIGN - Large, easy-to-turn polymer key protects your knuckles and speeds up installation.
EFFORTLESS TOOL FREE ADJUSTMENT - Say goodbye to screwdrivers—tighten or loosen clamps with a simple thumb turn.
PREMIUM 304 STAINLESS STEEL BUILD - Rust-resistant and ultra-durable for indoor and outdoor heavy-duty use.

This 5-pack of 4-inch adjustable hose clamps features a tool-free thumb screw key made from durable polymer for easy tightening. Crafted from premium 304 stainless steel, these clamps resist rust and corrosion, ensuring long-lasting performance across automotive, industrial, and household applications. Their flexible size range fits hoses from approximately 3.4 to 4.7 inches in diameter, making them a versatile and reliable choice for professionals and DIYers alike.

Specifications

ASIN	B07PDS9HG3
Best Sellers Rank	#59,897 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #18 in Vacuum & Dust Collector Hose Clamps #85 in Commercial Wet-Dry Vacuum Accessories
Brand Name	Fulton Woodworking Tools
Color	Silver
Customer Reviews	4.5 4.5 out of 5 stars (2,545)
Included Components	5 Hose Clamps
Item Type Name	Hose Clamps
Item Weight	0.15 kg
Manufacturer	Fulton Woodworking Tools and Accessories
Material Type	Steel
Outside Diameter	4 inches
UPC	817918022099
Unit Count	5 Count

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72.63 DT

Duties & taxes included

In stock

Sold byAmazon TunisiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Tunisia.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Rajesh P.

Customer service was outstanding when I had questions about the product.

2 days ago

Anjali K.

The product quality is outstanding. Exactly what I needed for my work.

1 month ago

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