The housing and screw are plated carbon steel, so yes they will eventually rust. The band is stainless.

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Koehler Enterprises KE4BX 10 Piece Hose Clamp Box (Micro Size 4),silver

Q: What is the astm code for hose clamps?

Don't know that answer, but I do not recommend these clamps. They are not steel, and arrived totally rusted. I returned them. See my review on the Amazon site.

Q: Are they capable of opening up completely. There's wire in pipe i dont want to disturb

Yes, I ,had to open one that way and it worked fine.

Q: I need a clamp to fit a 3/16" fuel line hose. How many mm should I purchase?

Fuel line hose is usually designated according to its inside diameter, in this case 3/16". A hose clamp clamps on the outside diameter of the hose. Hence as the hose's wall thickness is not known to me, I also do not know the hose's outside diameter. Once that is known the required range of the clamp can be established. I can't answer because you have not provided sufficient information. One inch equals approximately 25.4 mm.

Product ID: 35745382

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Details

Material
Stainless
Brand
Koehler
Item dimensions L x W x H
3.9 x 2.4 x
Color
Silver
Style
Box
Item Weight
18.14 g

🔩300 lbs tensile strength

🌧️Corrosion-resistant stainless steel

🛠️Micro size 4 fits tight spots

Frequently Bought Together

Koehler Enterprises KE4BX 10 Piece Hose Clamp Box (Micro Size 4),silver

Koehler Enterprises KE6BX 10 Piece Hose Clamp Box (Micro Size 6),silver

Description

🔧 Secure every connection with micro precision and mega strength!

COMPACT CONVENIENT - Comes in a sleek 10-piece box, lightweight and easy to store, so you’re always ready for the next fix.
UNMATCHED DURABILITY - Crafted from premium 300 series stainless steel for long-lasting strength and reliability.
VERSATILE APPLICATION - Ideal for radiator hoses, plumbing, automotive repairs, and more—your all-in-one clamp solution.
PRECISION FIT FOR MICRO SIZE 4 - Designed to clamp securely within a 1/4 to 5/8 inch range—perfect for those hard-to-reach, tight spaces.
CORROSION RESISTANT PERFORMANCE - Engineered to withstand moisture and rust, ensuring flawless function in home, auto, and industrial settings.

The Koehler Enterprises KE4BX 10 Piece Hose Clamp Box features micro size 4 clamps made from corrosion-resistant 300 series stainless steel, offering a tensile strength of 300 pounds. With a clamping range of 1/4 to 5/8 inch, these durable clamps are engineered for tight-fitting and hard-to-reach applications across home, automotive, and industrial uses.

Specifications

Material	Stainless Steel
Brand	Koehler
Item dimensions L x W x H	3.9 x 2.4 x 0.2 inches
Color	Silver
Style	Box
Item Weight	18.14 g
Tensile Strength	300 Pounds
UPC	660243300376
Global Trade Identification Number	00660243300376
Manufacturer	Koehler Enterprises
Model	KE4BX
Item Weight	0.64 ounces
Product Dimensions	3.9 x 2.4 x 0.2 inches
Item model number	KE4BX
Manufacturer Part Number	KE4BX

Have a Question? See What Others Asked

Will these rust?

What is the astm code for hose clamps?

Are they capable of opening up completely. There's wire in pipe i dont want to disturb

I need a clamp to fit a 3/16" fuel line hose. How many mm should I purchase?

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