M10 Grease Fittings | McMaster-Carr

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37 Products

Grease Fittings

Thread these fittings into motors, bearings, engine blocks, and other machinery to create a lubrication point. They’re also known as hydraulic grease fittings.

Zinc-plated steel fittings have mild corrosion resistance. Brass fittings resist corrosion better than zinc-plated steel fittings. 303 stainless steel fittings are more corrosion resistant than brass fittings and have good chemical resistance. 316 stainless steel fittings resist corrosion and chemicals better than 303 stainless steel fittings and can be used in saltwater environments.

Fittings with a check valve prevent grease from leaking when pressure causes backward flow. The valve stays closed when not in use to keep out dirt and other contaminants.

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

Straight with Male Threads

Straight with
Male
Threads

										Pkg.
Material	Overall Ht.	Thread Lg.	Shank Lg.	Hex Size	Max. Pressure, psi	Check Valve Type	Specifications Met	Pkg. Qty.		1-9	10-Up
M10 × 1 mm Metric Threads
Zinc-Plated Steel	15mm	5.9mm	5.9mm	11mm	8,000	Ball	DIN 71412	10	0000000	00000	00000
Brass	15mm	5.5mm	5.5mm	11mm	10,000	Ball	DIN 71412	5	0000000	00000	0000
303 Stainless Steel	15mm	5.8mm	5.8mm	11mm	8,000	Ball	__	1	0000000	0000	0000
316 Stainless Steel	15mm	5.5mm	5.5mm	11mm	1,450	Ball	DIN 71412	1	0000000	00000	0000
M10 × 1.25 mm Metric Threads
Zinc-Plated Steel	15mm	5.5mm	5.5mm	11mm	1,450	Ball	DIN 71412	10	00000000	0000	0000
M10 × 1.5 mm Metric Threads
Zinc-Plated Steel	15mm	5.9mm	5.9mm	11mm	8,000	Ball	DIN 71412	10	0000000	00000	0000
Brass	15mm	5.5mm	5.5mm	11mm	1,450	Ball	DIN 71412	5	00000000	00000	00000
303 Stainless Steel	15mm	5.5mm	5.5mm	11mm	1,450	Ball	DIN 71412	1	0000000	0000	0000
316 Stainless Steel	15mm	5.5mm	5.5mm	11mm	10,000	Ball	DIN 71412	1	0000000	00000	00000

90° Elbow with Male Threads

										Pkg.
Material	Overall Ht.	Thread Lg.	Shank Lg.	Hex Size	Max. Pressure, psi	Check Valve Type	Specifications Met	Pkg. Qty.		1-9	10-Up
M10 × 1 mm Metric Threads
Zinc-Plated Steel	19mm	5.6mm	5.6mm	11mm	8,000	Ball	DIN 71412	10	0000000	000000	000000
Brass	20mm	5.5mm	5.5mm	11mm	10,000	Ball	DIN 71412	3	0000000	00000	00000
303 Stainless Steel	19mm	5.6mm	5.6mm	11mm	8,000	Ball	__	1	0000000	0000	0000
M10 × 1.25 mm Metric Threads
Zinc-Plated Steel	20mm	5.5mm	5.5mm	11mm	1,450	Ball	DIN 71412	10	00000000	00000	00000
M10 × 1.5 mm Metric Threads
Zinc-Plated Steel	21mm	6.9mm	6.9mm	11mm	8,000	Ball	__	10	0000000	00000	00000
303 Stainless Steel	20mm	5.5mm	5.5mm	11mm	1,450	Ball	DIN 71412	1	0000000	0000	0000

67° Elbow with Male Threads

										Pkg.
Material	Overall Ht.	Thread Lg.	Shank Lg.	Hex Size	Max. Pressure, psi	Check Valve Type	Specifications Met	Pkg. Qty.		1-9	10-Up
M10 × 1 mm Metric Threads
Zinc-Plated Steel	25mm	5.5mm	5.5mm	11mm	1,450	Ball	DIN 71412	10	00000000	000000	000000

45° Elbow with Male Threads

										Pkg.
Material	Overall Ht.	Thread Lg.	Shank Lg.	Hex Size	Max. Pressure, psi	Check Valve Type	Specifications Met	Pkg. Qty.		1-9	10-Up
M10 × 1 mm Metric Threads
Zinc-Plated Steel	24mm	5.6mm	5.6mm	11mm	8,000	Ball	DIN 71412	10	0000000	000000	000000
Brass	25mm	5.5mm	5.5mm	11mm	10,000	Ball	DIN 71412	3	0000000	00000	00000
303 Stainless Steel	23mm	5.6mm	5.6mm	11mm	8,000	Ball	__	1	0000000	0000	0000
M10 × 1.25 mm Metric Threads
Zinc-Plated Steel	25mm	5.5mm	5.5mm	11mm	1,450	Ball	DIN 71412	10	00000000	0000	0000
M10 × 1.5 mm Metric Threads
Zinc-Plated Steel	26mm	6.9mm	6.9mm	11mm	8,000	Ball	__	10	0000000	00000	00000
303 Stainless Steel	25mm	5.5mm	5.5mm	11mm	1,450	Ball	DIN 71412	1	0000000	00000	00000

90° Wye with Male Threads

										Pkg.
Material	Overall Ht.	Thread Lg.	Shank Lg.	Square Size	Max. Pressure, psi	Check Valve Type	Specifications Met	Pkg. Qty.		1-9	10-Up
M10 × 1 mm Metric Threads
Zinc-Plated Steel	18mm	5.5mm	5.5mm	11mm	1,450	Ball	DIN 71412	5	00000000	000000	000000

Button-Head Grease Fittings

Often used on earth movers, mining equipment, and other heavy machinery, these fittings have a T-shaped top that holds the dispensing tip in place so it won’t pop off when adding grease. They're best for machinery requiring high volumes of grease because they let more grease pass through than standard grease fittings, thanks to a larger opening. An integral check valve prevents grease from leaking when pressure causes backward flow. The valve stays closed when not in use to keep out dirt and other contaminants.

Zinc-plated steel fittings have mild corrosion resistance. 303 stainless steel fittings are more corrosion resistant than zinc-plated steel fittings and have good chemical resistance.

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

Straight with Male Threads

										Each
Material	Overall Ht.	Thread Lg.	Shank Lg.	Hex Size	Head Dia.	Max. Pressure, psi	Check Valve Type	Specifications Met		1-9	10-Up
M10 × 1 mm Metric Threads
Zinc-Plated Steel	14mm	6mm	6mm	11mm	10mm	1,450	Ball	DIN 3404	0000000	00000	00000
Zinc-Plated Steel	17mm	6mm	6mm	17mm	16mm	10,000	Ball	DIN 3404	0000000	0000	0000
303 Stainless Steel	17mm	6mm	6mm	17mm	16mm	10,000	Ball	DIN 3404	0000000	00000	00000
M10 × 1.5 mm Metric Threads
Zinc-Plated Steel	17mm	6mm	6mm	17mm	16mm	1,450	Ball	DIN 3404	0000000	0000	0000

Flush-Style Grease Fittings

The nipple doesn't stick out, so these fittings fit in tight spaces and won't be damaged if something knocks into them. An integral check valve prevents grease from leaking when pressure causes backward flow. The valve stays closed when not in use to keep out dirt and other contaminants.

Zinc-plated steel fittings have mild corrosion resistance.

Install Styles A, B, and D with a slotted screwdriver. Install Style C with a hex wrench.

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

												Pkg.
Style	Material	Overall Ht.	Thread Lg.	Shank Lg.	Slot Lg.	Hex Size	Max. Pressure, psi	Check Valve Type	Specifications Met	Pkg. Qty.		1-9	10-Up
Straight with Male Threads
M10 × 1 mm Metric Threads
D	Zinc-Plated Steel	10mm	10mm	10mm	10mm	__	1,450	Ball	DIN 3405	5	00000000	000000	000000
C	Zinc-Plated Steel	9.5mm	6.5mm	6.5mm	__	11mm	10,000	Ball	DIN 3405	5	0000000	0000	0000
M10 × 1.5 mm Metric Threads
C	Zinc-Plated Steel	9.5mm	6.5mm	6.5mm	__	11mm	1,450	Ball	DIN 3405	5	00000000	0000	0000

Self-Tapping Grease Fittings for Unthreaded Holes

To fit securely in unthreaded holes, these fittings cut threads as they’re installed. Use a hex wrench to install. Fittings can be driven in, but then are not pressure rated. They're zinc-plated steel for mild corrosion resistance. All have an integral check valve that prevents grease from leaking when pressure causes backward flow. The valve stays closed when not in use to keep out dirt and other contaminants. These fittings are also known as hydraulic grease fittings.

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

Straight with Male Threads

										Pkg.
For Hole Dia.	Material	Overall Ht.	Shank Lg.	Thread Lg.	Hex Size	Max. Pressure, psi	Check Valve Type	Pkg. Qty.		1-9	10-Up
M10 × 1 mm Metric Threads
9.6-9.7mm	Zinc-Plated Steel	15mm	5.5mm	5.5mm	11mm	10,000	Ball	10	0000000	00000	00000

90° Elbow with Male Threads

										Pkg.
For Hole Dia.	Material	Overall Ht.	Shank Lg.	Thread Lg.	Square Size	Max. Pressure, psi	Check Valve Type	Pkg. Qty.		1-9	10-Up
M10 × 1 mm Metric Threads
9.6-9.7mm	Zinc-Plated Steel	18mm	5.5mm	5.5mm	11mm	10,000	Ball	5	0000000	000000	000000

45° Elbow with Male Threads

										Pkg.
For Hole Dia.	Material	Overall Ht.	Shank Lg.	Thread Lg.	Square Size	Max. Pressure, psi	Check Valve Type	Pkg. Qty.		1-9	10-Up
M10 × 1 mm Metric Threads
9.6-9.7mm	Zinc-Plated Steel	20mm	5.5mm	5.5mm	11mm	10,000	Ball	5	0000000	000000	000000

Self-Tapping Flush-Style Grease Fittings for Unthreaded Holes

Ensure a secure fit in unthreaded holes—these fittings cut threads as they’re installed. Use them in tight spaces where protruding fittings won't work. Install with a hex wrench. Fittings can be driven in, but then are not pressure rated. They’re zinc-plated steel for mild corrosion resistance. An integral check valve prevents grease from leaking when pressure causes backward flow. The valve stays closed when not in use to keep out dirt and other contaminants.

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

											Pkg.
For Hole Dia.	Material	Overall Ht.	Shank Lg.	Thread Lg.	Hex Size	Max. Pressure, psi	Check Valve Type	Specifications Met	Pkg. Qty.		1-9	10-Up
Straight with Male Threads
M10 × 1 mm Metric Threads
9.6-9.7 mm	Zinc-Plated Steel	8.5 mm	5.5 mm	5.5 mm	11 mm	10,000	Ball	DIN 3405	1	0000000	00000	00000

Grease Fitting Adapters

When the size or thread type of a fitting doesn't match an existing opening, use these adapters to make the connection.

Zinc-plated steel adapters have mild corrosion resistance. Brass adapters resist corrosion better than zinc-plated steel adapters. UNF threads are similar to threads on a machine screw or bolt. They require a sealant, such as an O-ring, to minimize leakage.

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

Straight

Adapter

Connection
Male	Female	Material		Each
Adapters
Metric M10 × 1 mm	UNF 1/4"-28	Zinc-Plated Steel	0000000	00000
Metric M10 × 1 mm	NPT 1/8	Steel	00000000	00000
Metric M10 × 1.5 mm	NPT 1/8	Brass	00000000	0000