DIN 3861 Nuts | McMaster-Carr

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	Specifications Met Specifications Met	Show

DIN

DIN 3861

	Specifications Met Specifications Met	Hide

Warning: Products have one, but not necessarily all, of the selected characteristics.

	System of Measurement System of Measurement

Metric

	For Tube OD For Tube OD

	For Tube Material For Tube Material

Stainless Steel

Steel

	Connection Style Connection Style

Compression

	Type Type

	Nut

	For Use With For Use With

	Shape Shape

	Straight

	Length Length

	For Tube Fabrication For Tube Fabrication

Seamless

	Connection Type Connection Type

	Tube

	Nut Material Nut Material

Stainless Steel

Steel

	REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration, Evaluation, Authorization and Restriction of Chemicals)

REACH Compliant

	RoHS (Restriction of Hazardous Substances) RoHS (Restriction of Hazardous Substances)

RoHS Compliant

RoHS Compliant with
Exemptions

	Maximum Pressure Maximum Pressure

4,500 psi @ 72° F

5,800 psi @ 72° F

7,200 psi @ 72° F

	Maximum Vacuum Maximum Vacuum

Not Rated

	DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense Acquisition Regulations Supplement)

DFARS Specialty Metals
COTS-Exempt

	Minimum Temperature Minimum Temperature

-49° to 0° F

	Maximum Temperature Maximum Temperature

250° to 499° F

	For Tube Wall Thickness For Tube Wall Thickness

1mm

1.5mm

2 mm

	Sleeve Material Sleeve Material

Rubber

	Nut Finish Nut Finish

Zinc Plated

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How to Identify and Measure Fittings

Pipe size is an industry designation, not the actual size. View information about how to measure threaded and unthreaded pipe and pipe fittings.

Nut

For Use With: Acetylene, Air, Butane, Diesel Fuel, Compressed Air, Cutting Oil, Fuel Oil, Gasoline, Hydraulic Fluid (Petroleum Base), Kerosene, Mineral Oil, Natural Gas, Helium, Nitrogen, Propane, Soap Solutions
Temperature Range: -10° to 400° F
Tubing: Use with seamless 316Ti or 321 stainless steel
Specifications Met: DIN 3861

Pair these nuts with vibration-resistant compression sleeves and fittings for a strong seal on stainless steel tubing. Made of 316 stainless steel, they have excellent corrosion resistance. All meet DIN 3861, which is an international standard for compression tube fitting specifications.

For technical drawings and 3-D models, click on a part number.

For Tube
OD, mm	Wall Thickness, mm	Nut Material	Sleeve Material	Maximum Pressure		Each
6	1	316 Stainless Steel	Fluoroelastomer Rubber	4,500 psi @ 72° F	00000000	000000
8	1	316 Stainless Steel	Fluoroelastomer Rubber	4,500 psi @ 72° F	00000000	00000
10	1	316 Stainless Steel	Fluoroelastomer Rubber	4,500 psi @ 72° F	00000000	00000
12	1.5	316 Stainless Steel	Fluoroelastomer Rubber	4,500 psi @ 72° F	00000000	00000
15	1.5	316 Stainless Steel	Fluoroelastomer Rubber	4,500 psi @ 72° F	00000000	00000
18	2	316 Stainless Steel	Fluoroelastomer Rubber	4,500 psi @ 72° F	00000000	00000

Nuts for Vibration-Resistant Compression Fittings for Steel Tubing

For Use With: Cutting Oil, Diesel Fuel
Temperature Range: -30° to 250° F
Tubing: Use with seamless steel
Specifications Met: DIN 3861

Use these nuts with vibration-resistant compression sleeves and fittings to create a strong seal on steel tubing. They are zinc-plated steel for fair corrosion resistance.

For technical drawings and 3-D models, click on a part number.

For Tube OD, mm	Nut Material	Max. Pressure		Each
6	Zinc-Plated Steel	7,200 psi @ 72° F	0000000	00000
8	Zinc-Plated Steel	7,200 psi @ 72° F	0000000	0000
10	Zinc-Plated Steel	7,200 psi @ 72° F	0000000	0000
12	Zinc-Plated Steel	5,800 psi @ 72° F	0000000	0000

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How to Identify and Measure Fittings

Nuts for Vibration-Resistant Compression
Fittings for Stainless Steel Tubing

Nuts for Vibration-Resistant Compression Fittings for Steel Tubing

How to Identify and Measure Fittings

Nuts for Vibration-Resistant CompressionFittings for Stainless Steel Tubing

Nuts for Vibration-Resistant Compression Fittings for Steel Tubing

Nuts for Vibration-Resistant Compression
Fittings for Stainless Steel Tubing