Drive-In Grease Fittings

	System of Measurement System of Measurement

Inch

Metric

	For Hole Diameter For Hole Diameter

	Shape Shape


45° Elbow	65° Elbow

90° Elbow	Straight

	Grease Fitting Style Grease Fitting Style


Standard	Flush

	Shank Type Shank Type

Serrated

Smooth

Threaded

	Material Material

Steel

Stainless Steel

	Check Valve Type Check Valve Type

Ball

Without Valve

	Shank Length Shank Length

	Overall Height Overall Height

	Maximum Pressure Maximum Pressure

8,000 psi

10,000 psi

Not Rated

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

DFARS Specialty Metals
COTS-Exempt

	Thread Size Thread Size

1/4"-28

M10

	Thread Type Thread Type

Metric

PTF

SAE-LT

	Hex Size Hex Size

	Head Diameter Head Diameter

	Thread Length Thread Length

	For Grease Fitting Shape For Grease Fitting Shape

Elbow

Straight

	Square Size Square Size

9 mm

11 mm

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52 Products

About Grease Fitting Threads

Grease Fittings for Unthreaded Holes

Drive these fittings into unthreaded holes with a hammer and grease fitting installation tool (sold separately). They're also known as hydraulic grease fittings.

Fittings with a serrated shank have a tighter grip than those with a smooth shank for a more secure fit in old or oversized holes.

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.

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 Serrated Shank

						Pkg.
Material	Overall Ht.	Shank Lg.	Check Valve Type	Pkg. Qty.		1-9	10-Up
For 1/8" Hole Dia.
Zinc-Plated Steel	15/32"	5/32"	Without Valve	10	0000000	00000	00000
Zinc-Plated Steel	9/16"	1/4"	Without Valve	10	0000000	0000	0000
For 3/16" Hole Dia.
Zinc-Plated Steel	25/64"	3/32"	Without Valve	10	0000000	0000	0000
Zinc-Plated Steel	15/32"	11/64"	Without Valve	10	0000000	0000	0000
Zinc-Plated Steel	31/64"	7/32"	Without Valve	10	0000000	0000	0000
Zinc-Plated Steel	33/64"	1/4"	Ball	10	0000000	0000	0000
Zinc-Plated Steel	5/8"	1/4"	Without Valve	10	0000000	0000	0000
303 Stainless Steel	1/2"	7/32"	Ball	5	0000000	00000	00000
For 1/4" Hole Dia.
Zinc-Plated Steel	15/32"	1/8"	Without Valve	10	0000000	0000	0000
Zinc-Plated Steel	35/64"	1/4"	Ball	10	0000000	0000	0000
Zinc-Plated Steel	9/16"	17/64"	Without Valve	10	0000000	0000	0000
303 Stainless Steel	1/2"	7/32"	Ball	5	0000000	00000	00000
For 5/16" Hole Dia.
Zinc-Plated Steel	35/64"	1/4"	Ball	10	0000000	0000	0000
Zinc-Plated Steel	5/8"	7/32"	Without Valve	10	0000000	0000	0000
For 3/8" Hole Dia.
Zinc-Plated Steel	21/32"	1/4"	Ball	10	0000000	0000	0000

Straight with Smooth Shank

						Pkg.
Material	Overall Ht.	Shank Lg.	Check Valve Type	Pkg. Qty.		1-9	10-Up
For 7/16" Hole Dia.
Zinc-Plated Steel	55/64"	9/32"	Ball	1	0000000	00000	00000
For 6mm Hole Dia.
Zinc-Plated Steel	15mm	5.5mm	Ball	10	0000000	0000	0000
For 8mm Hole Dia.
Zinc-Plated Steel	15mm	5.5mm	Ball	10	0000000	0000	0000
For 10mm Hole Dia.
Zinc-Plated Steel	15mm	5.5mm	Ball	10	0000000	0000	0000

65° Elbow with Serrated Shank

							Pkg.
Material	Overall Ht.	Shank Lg.	Hex Size	Check Valve Type	Pkg. Qty.		1-9	10-Up
For 3/16" Hole Dia.
Zinc-Plated Steel	45/64"	7/32"	7/16"	Ball	10	0000000	000000	000000
For 1/4" Hole Dia.
Zinc-Plated Steel	49/64"	9/32"	7/16"	Ball	10	0000000	00000	00000
For 5/16" Hole Dia.
Zinc-Plated Steel	45/64"	7/32"	3/8"	Ball	10	0000000	00000	00000

45° Elbow with Serrated Shank

							Pkg.
Material	Overall Ht.	Shank Lg.	Hex Size	Check Valve Type	Pkg. Qty.		1-9	10-Up
For 3/16" Hole Dia.
Zinc-Plated Steel	53/64"	7/32"	7/16"	Ball	10	0000000	000000	000000

Self-Tapping Grease Fittings for Unthreaded Holes

Ensure a secure fit in unthreaded holes—these fittings cut threads as they’re installed. 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. 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.

PTF (Dryseal) threads are compatible with NPT threads. SAE-LT threads are tapered.

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
1/8 PTF Threads
0.373-0.38"	Zinc-Plated Steel	5/8"	15/64"	15/64"	7/16"	10,000	Ball	10	0000000	00000	00000
1/4"-28 SAE-LT Threads
0.23-0.235"	Zinc-Plated Steel	1/2"	5/64"	5/64"	9/32"	10,000	Ball	10	0000000	0000	0000
0.23-0.235"	Zinc-Plated Steel	37/64"	13/64"	13/64"	5/16"	10,000	Ball	10	0000000	0000	0000
M6 × 1 mm Metric Threads
5.6-5.7mm	Zinc-Plated Steel	14mm	5.5mm	5.5mm	7mm	8,000	Ball	10	0000000	0000	0000
5.6-5.7mm	Zinc-Plated Steel	15mm	5.5mm	5.5mm	7mm	10,000	Ball	10	0000000	0000	0000
M8 × 1 mm Metric Threads
7.6-7.7mm	Zinc-Plated Steel	15mm	5.5mm	5.5mm	9mm	10,000	Ball	10	0000000	0000	0000
M10 × 1 mm Metric Threads
9.6-9.7mm	Zinc-Plated Steel	15mm	5.5mm	5.5mm	11mm	10,000	Ball	10	0000000	0000	0000

90° Elbow with Male Threads

											Pkg.
For Hole Dia.	Material	Overall Ht.	Shank Lg.	Thread Lg.	Hex Size	Square Size	Max. Pressure, psi	Check Valve Type	Pkg. Qty.		1-9	10-Up
1/8 PTF Threads
0.373-0.38"	Zinc-Plated Steel	49/64"	13/64"	13/64"	7/16"	__	10,000	Ball	10	0000000	00000	00000
1/4"-28 SAE-LT Threads
0.23-0.235"	Zinc-Plated Steel	3/4"	13/64"	13/64"	3/8"	__	10,000	Ball	10	0000000	0000	0000
M6 × 1 mm Metric Threads
5.6-5.7mm	Zinc-Plated Steel	18mm	5.5mm	5.5mm	__	9mm	10,000	Ball	10	0000000	00000	00000
M8 × 1 mm Metric Threads
7.6-7.7mm	Zinc-Plated Steel	18mm	5.5mm	5.5mm	__	9mm	10,000	Ball	5	0000000	0000	0000
M10 × 1 mm Metric Threads
9.6-9.7mm	Zinc-Plated Steel	18mm	5.5mm	5.5mm	__	11mm	10,000	Ball	5	0000000	0000	0000

65° Elbow 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
1/8 PTF Threads
0.373"-0.38"	Zinc-Plated Steel	3/4"	13/64"	13/64"	7/16"	10,000	Ball	10	0000000	00000	00000

45° Elbow with Male Threads

											Pkg.
For Hole Dia.	Material	Overall Ht.	Shank Lg.	Thread Lg.	Hex Size	Square Size	Max. Pressure, psi	Check Valve Type	Pkg. Qty.		1-9	10-Up
1/4"-28 SAE-LT Threads
0.23-0.235"	Zinc-Plated Steel	13/16"	13/64"	13/64"	3/8"	__	10,000	Ball	10	0000000	00000	00000
M6 × 1 mm Metric Threads
5.6-5.7mm	Zinc-Plated Steel	20mm	5.5mm	5.5mm	__	9mm	10,000	Ball	10	0000000	00000	00000
M8 × 1 mm Metric Threads
7.6-7.7mm	Zinc-Plated Steel	20mm	5.5mm	5.5mm	__	9mm	10,000	Ball	5	0000000	0000	0000
M10 × 1 mm Metric Threads
9.6-9.7mm	Zinc-Plated Steel	20mm	5.5mm	5.5mm	__	11mm	10,000	Ball	5	0000000	0000	0000

Flush-Style Grease Fittings for Unthreaded Holes

Use these fittings in tight spaces where protruding fittings won’t work. Drive them into unthreaded holes with a hammer and grease fitting installation tool (sold separately). 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.

Straight with Serrated Shank

									Pkg.
For Hole Dia.	Material	Overall Ht.	Shank Lg.	Head Dia.	Max. Pressure	Check Valve Type	Pkg. Qty.		1-9	10-Up
3/16"	Zinc-Plated Steel	3/8"	5/16"	1/4"	Not Rated	Ball	5	0000000	00000	00000

Straight with Smooth Shank

										Pkg.
For Hole Dia.	Material	Overall Ht.	Shank Lg.	Head Dia.	Max. Pressure, psi	Check Valve Type	Specifications Met	Pkg. Qty.		1-9	10-Up
1/4"	Zinc-Plated Steel	9/32"	15/64"	5/16"	Not Rated	Ball	__	5	0000000	000000	000000
5/16"	Zinc-Plated Steel	11/32"	9/32"	3/8"	Not Rated	Ball	__	5	0000000	0000	0000
5mm	Zinc-Plated Steel	7.5mm	5.5mm	5mm	Not Rated	Ball	__	5	0000000	0000	0000
6mm	Zinc-Plated Steel	7.5mm	5.5mm	8mm	10,000	Ball	DIN 3405	5	0000000	0000	0000
8mm	Zinc-Plated Steel	9.5mm	6.5mm	10mm	10,000	Ball	DIN 3405	5	0000000	0000	0000
10mm	Zinc-Plated Steel	9.5mm	6.5mm	12mm	10,000	Ball	DIN 3405	3	0000000	0000	0000

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
M6 × 1 mm Metric Threads
5.6-5.7 mm	Zinc-Plated Steel	8.5 mm	5.5 mm	5.5 mm	7 mm	10,000	Ball	DIN 3405	5	0000000	00000	00000
M8 × 1 mm Metric Threads
7.6-7.7 mm	Zinc-Plated Steel	8.5 mm	5.5 mm	5.5 mm	9 mm	10,000	Ball	DIN 3405	3	0000000	0000	0000
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	0000	0000

Grease Fitting Tools for Unthreaded Holes

For Straight Fittings

For Elbow Fittings

Tap these tools once or twice with a hammer to install fittings.

For Grease Fitting Shape	Material	Lg.		Each
Straight	Steel	4"	0000000	000000
Elbow	Steel	4"	0000000	00000