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Grease Fitting Style Grease Fitting Style |
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Overall Height Overall Height |
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Maximum Pressure Maximum Pressure |
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Shank Length Shank Length |
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About Grease Fitting Threads
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Grease Fittings
These fittings are also known as hydraulic grease fittings.
303 stainless steel fittings are more corrosion resistant than brass fittings and have good chemical resistance. 316 stainless steel fitting is more corrosion and chemical resistant 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.
PTF and NPTF (Dryseal) threads are compatible with NPT threads. UNF and UNEF threads are similar to threads on a machine screw or bolt. They require a sealant, such as an O-ring, to minimize leakage. SAE-LT threads are tapered but designed to be installed into a 1/4"-28 straight-thread UNF hole.
For technical drawings and 3-D models, click on a part number.
Male
Threads
Pkg. | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Material | Overall Ht. | Shank Lg. | Thread Lg. | Hex Size | Max. Pressure, psi | Check Valve Type | Specifications Met | Pkg. Qty. | 1-9 | 10-Up | |
1/8 PTF Threads | |||||||||||
| 303 Stainless Steel | 3/4" | 5/16" | 3/16" | 7/16" | 10,000 | Ball | __ | 5 | 0000000 | 000000 | 00000 |
1/4 PTF Threads | |||||||||||
| 303 Stainless Steel | 53/64" | 23/64" | 23/64" | 9/16" | 8,000 | Ball | __ | 1 | 0000000 | 0000 | 0000 |
| 303 Stainless Steel | 7/8" | 27/64" | 25/64" | 19/32" | 10,000 | Ball | __ | 1 | 0000000 | 00000 | 0000 |
5/16"-24 UNF Threads | |||||||||||
| 303 Stainless Steel | 19/32" | 7/32" | 7/32" | 11/32" | 10,000 | Ball | __ | 3 | 0000000 | 0000 | 0000 |
3/8"-24 UNF Threads | |||||||||||
| 303 Stainless Steel | 19/32" | 7/32" | 7/32" | 7/16" | 10,000 | Ball | __ | 3 | 0000000 | 00000 | 0000 |
1/4"-28 SAE-LT Threads | |||||||||||
| 303 Stainless Steel | 17/32" | 3/16" | 7/64" | 5/16" | 10,000 | Ball | __ | 5 | 0000000 | 00000 | 0000 |
| 303 Stainless Steel | 19/32" | 7/32" | 7/32" | 9/32" | 10,000 | Ball | __ | 3 | 0000000 | 0000 | 0000 |
1/8 BSPT Threads | |||||||||||
| 303 Stainless Steel | 15mm | 5.8mm | 5.8mm | 11mm | 8,000 | Ball | DIN 71412 | 5 | 0000000 | 00000 | 00000 |
1/4 BSPT Threads | |||||||||||
| 303 Stainless Steel | 20mm | 8.4mm | 8.4mm | 14mm | 8,000 | Ball | DIN 71412 | 1 | 0000000 | 0000 | 0000 |
M5 × 0.8 mm Metric Threads | |||||||||||
| 303 Stainless Steel | 15mm | 5.5mm | 5.5mm | 7mm | 10,000 | Ball | DIN 71412 | 1 | 0000000 | 0000 | 0000 |
M6 × 0.75 mm Metric Threads | |||||||||||
| 303 Stainless Steel | 15mm | 5.5mm | 5.5mm | 7mm | 10,000 | Ball | DIN 71412 | 1 | 0000000 | 0000 | 0000 |
M6 × 1 mm Metric Threads | |||||||||||
| 303 Stainless Steel | 13mm | 5.2mm | 5.2mm | 7mm | 8,000 | Ball | DIN 71412 | 3 | 0000000 | 0000 | 0000 |
M8 × 1 mm Metric Threads | |||||||||||
| 303 Stainless Steel | 15mm | 5.8mm | 5.8mm | 9mm | 8,000 | Ball | DIN 71412 | 1 | 0000000 | 0000 | 0000 |
M8 × 1.25 mm Metric Threads | |||||||||||
| 303 Stainless Steel | 15mm | 5.8mm | 5.8mm | 9mm | 8,000 | Ball | DIN 71412 | 1 | 0000000 | 0000 | 0000 |
M10 × 1 mm Metric Threads | |||||||||||
| 303 Stainless Steel | 15mm | 5.8mm | 5.8mm | 11mm | 8,000 | Ball | DIN 71412 | 1 | 0000000 | 0000 | 0000 |
M10 × 1.5 mm Metric Threads | |||||||||||
| 316 Stainless Steel | 15mm | 5.5mm | 5.5mm | 11mm | 10,000 | Ball | DIN 71412 | 1 | 0000000 | 0000 | 0000 |
Pkg. | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Material | Overall Ht. | Thread Lg. | Shank Lg. | Hex Size | Max. Pressure, psi | Check Valve Type | Specifications Met | Pkg. Qty. | 1-9 | 10-Up | |
1/8 PTF Threads | |||||||||||
| 303 Stainless Steel | 7/8" | 7/32" | 11/32" | 7/16" | 10,000 | Ball | __ | 1 | 0000000 | 00000 | 00000 |
1/4 PTF Threads | |||||||||||
| 303 Stainless Steel | 15/16" | 11/32" | 11/32" | 9/16" | 8,000 | Ball | __ | 1 | 0000000 | 00000 | 00000 |
1/4"-28 SAE-LT Threads | |||||||||||
| 303 Stainless Steel | 3/4" | 7/64" | 13/64" | 3/8" | 10,000 | Ball | __ | 1 | 0000000 | 0000 | 0000 |
1/8 BSPT Threads | |||||||||||
| 303 Stainless Steel | 19mm | 5.5mm | 5.5mm | 11mm | 8,000 | Ball | DIN 71412 | 1 | 0000000 | 0000 | 0000 |
M6 × 1 mm Metric Threads | |||||||||||
| 303 Stainless Steel | 18mm | 5.6mm | 5.6mm | 9mm | 8,000 | Ball | DIN 71412 | 3 | 0000000 | 00000 | 00000 |
M8 × 1 mm Metric Threads | |||||||||||
| 303 Stainless Steel | 18mm | 5.6mm | 5.6mm | 9mm | 8,000 | Ball | DIN 71412 | 1 | 0000000 | 0000 | 0000 |
M8 × 1.25 mm Metric Threads | |||||||||||
| 303 Stainless Steel | 18mm | 5.5mm | 5.5mm | 9mm | 8,000 | Ball | DIN 71412 | 1 | 0000000 | 0000 | 0000 |
M10 × 1 mm Metric Threads | |||||||||||
| 303 Stainless Steel | 19mm | 5.6mm | 5.6mm | 11mm | 8,000 | Ball | DIN 71412 | 1 | 0000000 | 0000 | 0000 |
Pkg. | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Material | Overall Ht. | Thread Lg. | Shank Lg. | Hex Size | Max. Pressure, psi | Check Valve Type | Pkg. Qty. | 1-9 | 10-Up | |
1/8 PTF Threads | ||||||||||
| 303 Stainless Steel | 61/64" | 11/32" | 11/32" | 7/16" | 10,000 | Ball | 1 | 0000000 | 00000 | 00000 |
Pkg. | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Material | Overall Ht. | Thread Lg. | Shank Lg. | Hex Size | Max. Pressure, psi | Check Valve Type | Specifications Met | Pkg. Qty. | 1-9 | 10-Up | |
1/8 PTF Threads | |||||||||||
| 303 Stainless Steel | 63/64" | 17/64" | 17/64" | 7/16" | 8,000 | Ball | __ | 1 | 0000000 | 00000 | 00000 |
1/4 PTF Threads | |||||||||||
| 303 Stainless Steel | 1 7/64" | 11/32" | 11/32" | 9/16" | 8,000 | Ball | __ | 1 | 0000000 | 00000 | 00000 |
5/16"-24 UNF Threads | |||||||||||
| 303 Stainless Steel | 59/64" | 7/32" | 7/32" | 11/32" | 10,000 | Ball | __ | 1 | 0000000 | 0000 | 0000 |
1/4"-28 SAE-LT Threads | |||||||||||
| 303 Stainless Steel | 13/16" | 13/64" | 13/64" | 3/8" | 10,000 | Ball | __ | 3 | 0000000 | 00000 | 00000 |
1/8 BSPT Threads | |||||||||||
| 303 Stainless Steel | 23mm | 5.5mm | 5.5mm | 11mm | 8,000 | Ball | DIN 71412 | 1 | 0000000 | 0000 | 0000 |
M6 × 1 mm Metric Threads | |||||||||||
| 303 Stainless Steel | 23mm | 5.6mm | 5.6mm | 9mm | 8,000 | Ball | DIN 71412 | 3 | 0000000 | 00000 | 00000 |
M8 × 1 mm Metric Threads | |||||||||||
| 303 Stainless Steel | 22mm | 5.6mm | 5.6mm | 9mm | 8,000 | Ball | DIN 71412 | 3 | 0000000 | 00000 | 00000 |
M8 × 1.25 mm Metric Threads | |||||||||||
| 303 Stainless Steel | 22mm | 5.5mm | 5.5mm | 9mm | 8,000 | Ball | DIN 71412 | 1 | 0000000 | 0000 | 0000 |
M10 × 1 mm Metric Threads | |||||||||||
| 303 Stainless Steel | 23mm | 5.6mm | 5.6mm | 11mm | 8,000 | Ball | DIN 71412 | 1 | 0000000 | 0000 | 0000 |
Pkg. | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Material | Overall Ht. | Thread Lg. | Shank Lg. | Hex Size | Max. Pressure, psi | Check Valve Type | Pkg. Qty. | 1-9 | 10-Up | |
1/8 PTF Threads | ||||||||||
| 303 Stainless Steel | 29/32" | 19/64" | 19/64" | 7/16" | 10,000 | Ball | 1 | 0000000 | 00000 | 00000 |
Grease Fitting Assortments
Assortments contain straight, 45° elbow, and 90° elbow fittings. These fittings are also known as hydraulic grease fittings.
18-8 stainless steel fittings are more corrosion resistant than steel fittings.
PTF (Dryseal) threads are compatible with NPT threads. SAE-LT threads are tapered but designed to be installed into a 1/4"-28 straight-thread UNF hole.
| Number of Pieces | Material | Includes | Gender | Max. Pressure, psi | Each | |
| 44 | 18-8 Stainless Steel | 10 Each M6 × 1 mm Straight Grease Fittings 6 Each M6 × 1 mm 45° Elbow Grease Fittings 6 Each M6 × 1 mm 90° Elbow Grease Fittings 6 Each M8 × 1 mm Straight Grease Fittings 6 Each M8 × 1 mm 90° Elbow Grease Fittings 10 Each M10 × 1 mm Straight Grease Fittings Plastic Case | Male | 10,000 | 00000000 | 0000000 |
| 50 | 18-8 Stainless Steel | 30 Each 1/8 PTF Straight Grease Fittings 10 Each 1/8 PTF 45° Elbow Grease Fittings 10 Each 1/8 PTF 90° Elbow Grease Fittings Plastic Case | Male | 10,000 | 0000000 | 000000 |
| 50 | 18-8 Stainless Steel | 30 Each 1/4"-28 SAE-LT Straight Grease Fittings 10 Each 1/4"-28 SAE-LT 45° Elbow Grease Fittings 10 Each 1/4"-28 SAE-LT 90° Elbow Grease Fittings Plastic Case | Male | 10,000 | 0000000 | 000000 |
| 136 | 18-8 Stainless Steel | 40 Each 1/8 PTF Straight Grease Fittings 8 Each 1/8 PTF 45° Elbow Grease Fittings 8 Each 1/8 PTF 90° Elbow Grease Fittings 60 Each 1/4"-28 SAE-LT Straight Grease Fittings 10 Each 1/4"-28 SAE-LT 45° Elbow Grease Fittings 10 Each 1/4"-28 SAE-LT 90° Elbow Grease Fittings Plastic Case | Male | 10,000 | 0000000 | 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. 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.
303 stainless steel fittings are more corrosion resistant than zinc-plated steel fittings and have good chemical resistance.
PTF and NPTF (Dryseal) threads are compatible with NPT threads.
For technical drawings and 3-D models, click on a part number.
Each | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Material | Overall Ht. | Shank Lg. | Thread Lg. | Hex Size | Head Dia. | Max. Pressure, psi | Check Valve Type | Specifications Met | 1-9 | 10-Up | |
1/8 NPTF Threads | |||||||||||
| 303 Stainless Steel | 45/64" | 9/32" | 3/16" | 43/64" | 5/8" | 10,000 | Ball | __ | 0000000 | 000000 | 000000 |
1/4 NPTF Threads | |||||||||||
| 303 Stainless Steel | 53/64" | 13/32" | 1/4" | 43/64" | 5/8" | 10,000 | Ball | __ | 0000000 | 00000 | 00000 |
3/8 NPTF Threads | |||||||||||
| 303 Stainless Steel | 59/64" | 1/2" | 1/2" | 3/4" | 5/8" | 10,000 | Ball | __ | 0000000 | 00000 | 00000 |
1/8 BSPP Threads | |||||||||||
| 303 Stainless Steel | 17mm | 6mm | 6mm | 17mm | 16mm | 10,000 | Ball | DIN 3404 | 0000000 | 00000 | 0000 |
1/4 BSPP Threads | |||||||||||
| 303 Stainless Steel | 17mm | 6mm | 6mm | 17mm | 16mm | 10,000 | Ball | DIN 3404 | 0000000 | 00000 | 0000 |
M6 × 1 mm Metric Threads | |||||||||||
| 303 Stainless Steel | 17mm | 6mm | 6mm | 17mm | 16mm | 10,000 | Ball | DIN 3404 | 0000000 | 00000 | 0000 |
M8 × 1 mm Metric Threads | |||||||||||
| 303 Stainless Steel | 17mm | 6mm | 6mm | 17mm | 16mm | 10,000 | Ball | DIN 3404 | 0000000 | 00000 | 00000 |
M10 × 1 mm Metric Threads | |||||||||||
| 303 Stainless Steel | 17mm | 6mm | 6mm | 17mm | 16mm | 10,000 | Ball | DIN 3404 | 0000000 | 00000 | 00000 |
M12 × 1.5 mm Metric Threads | |||||||||||
| 303 Stainless Steel | 17mm | 6mm | 6mm | 17mm | 16mm | 10,000 | Ball | DIN 3404 | 0000000 | 00000 | 00000 |
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. 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.
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.
303 stainless steel adapters are more corrosion resistant than zinc-plated steel adapters and have good chemical resistance.
PTF and NPTF (Dryseal) threads are compatible with NPT threads. SAE-LT threads are tapered but designed to be installed into a 1/4"-28 straight-thread UNF hole.
For technical drawings and 3-D models, click on a part number.
Connection | ||||
|---|---|---|---|---|
| Male | Female | Material | Each | |
| SAE-LT 1/4"-28 | NPTF 1/8 | 303 Stainless Steel | 0000000 | 000000 |
Grease Fitting Manifolds
Lubricate multiple points from a single location. Dispense grease into the grease fittings. Use the compression fittings on the outlets to connect tubing (not included) between the grease fittings and lubrication points.
303 stainless steel manifolds are more corrosion resistant than zinc-plated steel manifolds and have good chemical resistance.
For technical drawings and 3-D models, click on a part number.
