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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. 400 nickel fittings are the most corrosion resistant and can be used in caustic environments, such as those involving salt water, sulfuric acid, and alkalies.
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-SAE 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. 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.
Pkg. | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Material | Overall Ht. | Thread Lg. | Shank Lg. | Hex Size | Max. Pressure, psi | Check Valve Type | Specifications Met | Pkg. Qty. | 1-9 | 10-Up | |
1/4"-28 UNF Threads | |||||||||||
| Brass | 45/64" | 7/32" | 7/32" | 11/32" | 10,000 | Ball | __ | 3 | 000000 | 000000 | 00000 |
5/16"-24 UNF Threads | |||||||||||
| Zinc-Plated Steel | 23/32" | 5/32" | 13/64" | 23/64" | 8,000 | Ball | __ | 10 | 00000000 | 00000 | 0000 |
3/8"-24 UNF Threads | |||||||||||
| Zinc-Plated Steel | 51/64" | 7/32" | 7/32" | 7/16" | 1,450 | Ball | __ | 10 | 00000000 | 0000 | 0000 |
1/2"-20 UNF Threads | |||||||||||
| Zinc-Plated Steel | 7/8" | 1/4" | 1/4" | 9/16" | 1,450 | Ball | __ | 3 | 00000000 | 00000 | 00000 |
1/4"-28 SAE-LT Threads | |||||||||||
| Zinc-Plated Steel | 3/4" | 5/32" | 13/64" | 3/8" | 10,000 | Ball | __ | 10 | 0000000 | 00000 | 00000 |
| Zinc-Plated Steel | 51/64" | 5/16" | 5/16" | 3/8" | 8,000 | Ball | __ | 10 | 0000000 | 00000 | 00000 |
303 Stainless Steel | 3/4" | 7/64" | 13/64" | 3/8" | 10,000 | Ball | __ | 1 | 0000000 | 0000 | 0000 |
| 400 Nickel | 3/4" | 13/64" | 13/64" | 3/8" | 10,000 | Ball | __ | 1 | 0000000 | 00000 | 00000 |
1/8 BSPT Threads | |||||||||||
| Zinc-Plated Steel | 20mm | 5.5mm | 5.5mm | 11mm | 10,000 | Ball | DIN 71412 | 10 | 0000000 | 00000 | 0000 |
| 303 Stainless Steel | 19mm | 5.5mm | 5.5mm | 11mm | 8,000 | Ball | __ | 1 | 0000000 | 0000 | 0000 |
1/4 BSPT Threads | |||||||||||
| Zinc-Plated Steel | 22mm | 6.5mm | 6.5mm | 14mm | 10,000 | Ball | DIN 71412 | 5 | 0000000 | 00000 | 00000 |
3/8 BSPT Threads | |||||||||||
| Zinc-Plated Steel | 20mm | 7mm | 7mm | 17mm | 1,450 | Ball | DIN 71412 | 5 | 00000000 | 00000 | 00000 |
1/4"-26 BSF Threads | |||||||||||
| Zinc-Plated Steel | 15mm | 5.5mm | 5.5mm | 7mm | 1,450 | Ball | DIN 71412 | 10 | 00000000 | 00000 | 00000 |
3/8"-20 BSF Threads | |||||||||||
| Zinc-Plated Steel | 20mm | 5.5mm | 5.5mm | 11mm | 1,450 | Ball | DIN 71412 | 10 | 00000000 | 0000 | 0000 |
M5 × 0.8 mm Metric Threads | |||||||||||
| Zinc-Plated Steel | 18mm | 5.5mm | 5.5mm | 9mm | 1,450 | Ball | DIN 71412 | 10 | 00000000 | 00000 | 00000 |
M6 × 0.75 mm Metric Threads | |||||||||||
| Zinc-Plated Steel | 18mm | 5.5mm | 5.5mm | 9mm | 10,000 | Ball | DIN 71412 | 10 | 0000000 | 00000 | 00000 |
M6 × 1 mm Metric Threads | |||||||||||
| Zinc-Plated Steel | 18mm | 5.5mm | 5.5mm | 9mm | 8,000 | Ball | DIN 71412 | 10 | 0000000 | 00000 | 00000 |
| Brass | 18mm | 5.5mm | 5.5mm | 9mm | 10,000 | Ball | DIN 71412 | 5 | 0000000 | 00000 | 00000 |
| 303 Stainless Steel | 18mm | 5.6mm | 5.6mm | 9mm | 8,000 | Ball | __ | 3 | 0000000 | 00000 | 00000 |
| 316 Stainless Steel | 18mm | 5.5mm | 5.5mm | 9mm | 1,450 | Ball | DIN 71412 | 1 | 0000000 | 00000 | 00000 |
M7 × 1 mm Metric Threads | |||||||||||
| Zinc-Plated Steel | 18mm | 5.5mm | 5.5mm | 9mm | 1,450 | Ball | DIN 71412 | 10 | 00000000 | 00000 | 00000 |
M8 × 0.75 mm Metric Threads | |||||||||||
| Zinc-Plated Steel | 18mm | 5.5mm | 5.5mm | 9mm | 1,450 | Ball | DIN 71412 | 10 | 00000000 | 00000 | 00000 |
M8 × 1 mm Metric Threads | |||||||||||
| Zinc-Plated Steel | 18mm | 5.5mm | 5.5mm | 9mm | 8,000 | Ball | DIN 71412 | 10 | 0000000 | 00000 | 00000 |
| Brass | 18mm | 5.5mm | 5.5mm | 9mm | 10,000 | Ball | DIN 71412 | 1 | 0000000 | 0000 | 0000 |
| 303 Stainless Steel | 18mm | 5.6mm | 5.6mm | 9mm | 8,000 | Ball | __ | 1 | 0000000 | 0000 | 0000 |
M8 × 1.25 mm Metric Threads | |||||||||||
| Zinc-Plated Steel | 18mm | 5.6mm | 5.6mm | 9mm | 8,000 | Ball | __ | 10 | 0000000 | 00000 | 00000 |
| Brass | 18mm | 5.5mm | 5.5mm | 9mm | 10,000 | Ball | DIN 71412 | 3 | 0000000 | 00000 | 0000 |
| 303 Stainless Steel | 18mm | 5.5mm | 5.5mm | 9mm | 8,000 | Ball | __ | 1 | 0000000 | 0000 | 0000 |
M10 × 1 mm Metric Threads | |||||||||||
| Zinc-Plated Steel | 19mm | 5.6mm | 5.6mm | 11mm | 8,000 | Ball | DIN 71412 | 10 | 0000000 | 00000 | 00000 |
| 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 |
M12 × 1 mm Metric Threads | |||||||||||
| Zinc-Plated Steel | 22mm | 6.5mm | 6.5mm | 14mm | 10,000 | Ball | DIN 71412 | 5 | 0000000 | 00000 | 0000 |
M12 × 1.5 mm Metric Threads | |||||||||||
| Zinc-Plated Steel | 22mm | 6.5mm | 6.5mm | 14mm | 10,000 | Ball | DIN 71412 | 5 | 0000000 | 00000 | 00000 |
M12 × 1.75 mm Metric Threads | |||||||||||
| Zinc-Plated Steel | 22mm | 6.5mm | 6.5mm | 14mm | 1,450 | Ball | DIN 71412 | 5 | 00000000 | 00000 | 00000 |
M14 × 1.5 mm Metric Threads | |||||||||||
| Zinc-Plated Steel | 22mm | 6.5mm | 6.5mm | 14mm | 1,450 | Ball | DIN 71412 | 5 | 00000000 | 00000 | 00000 |
M14 × 2 mm Metric Threads | |||||||||||
| Zinc-Plated Steel | 22mm | 6.5mm | 6.5mm | 14mm | 1,450 | Ball | DIN 71412 | 5 | 00000000 | 00000 | 00000 |
1/8 PTF-SAE Threads | |||||||||||
| Zinc-Plated Steel | 27/32" | 1/4" | 19/64" | 7/16" | 10,000 | Ball | __ | 10 | 0000000 | 00000 | 00000 |
| Zinc-Plated Steel | 1 13/16" | 5/16" | 1 1/4" | 7/16" | 10,000 | Ball | __ | 3 | 0000000 | 0000 | 0000 |
| 303 Stainless Steel | 7/8" | 7/32" | 11/32" | 7/16" | 10,000 | Ball | __ | 1 | 0000000 | 0000 | 0000 |
| 400 Nickel | 7/8" | 11/32" | 11/32" | 7/16" | 10,000 | Ball | __ | 1 | 0000000 | 00000 | 00000 |
1/4 PTF-SAE Threads | |||||||||||
| Zinc-Plated Steel | 15/16" | 11/32" | 11/32" | 9/16" | 8,000 | Ball | __ | 10 | 0000000 | 00000 | 00000 |
| 303 Stainless Steel | 15/16" | 11/32" | 11/32" | 9/16" | 8,000 | Ball | __ | 1 | 0000000 | 00000 | 00000 |
3/8 PTF-SAE Threads | |||||||||||
| Zinc-Plated Steel | 51/64" | 9/32" | 9/32" | 43/64" | 10,000 | Ball | __ | 3 | 0000000 | 00000 | 00000 |
Leakproof Grease Fittings
Keep thin grease from leaking out—the check valve in these fittings has a Buna-N seat that creates a tighter seal than check valves in other grease fittings. The valve stays closed when not in use to keep out dirt and other contaminants. Fittings are zinc-plated steel, which has mild corrosion resistance. They're also known as hydraulic grease fittings. They have PTF-SAE and NPTF (Dryseal) threads, which are compatible with NPT threads.
For technical drawings and 3-D models, click on a part number.
Pkg. | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Material | Overall Ht. | Shank Lg. | Thread Lg. | Hex Size | Max. Pressure, psi | Check Valve Type | Pkg. Qty. | 1-9 | 10-Up | |
1/8 NPTF Threads | ||||||||||
| Zinc-Plated Steel | 31/32" | 25/64" | 17/64" | 7/16" | 5,000 | Disc | 1 | 0000000 | 00000 | 00000 |
Grease Fittings for Unthreaded Holes
Drive these fittings into unthreaded holes with a hammer and grease fitting installation tool (not included). They're also known as hydraulic grease fittings.
Zinc-plated steel fittings have mild corrosion 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.
Pkg. | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Material | Overall Ht. | Shank Lg. | Square Size | Check Valve Type | Specifications Met | Pkg. Qty. | 1-9 | 10-Up | |
For 6mm Hole Dia. | |||||||||
| Zinc-Plated Steel | 18mm | 5.5mm | 9mm | Ball | DIN 71412 | 10 | 0000000 | 000000 | 000000 |
For 8mm Hole Dia. | |||||||||
| Zinc-Plated Steel | 18mm | 5.5mm | 9mm | Ball | DIN 71412 | 10 | 0000000 | 00000 | 00000 |
For 10mm Hole Dia. | |||||||||
| Zinc-Plated Steel | 18mm | 5.5mm | 11mm | Ball | DIN 71412 | 5 | 0000000 | 00000 | 00000 |
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.
PTF-SAE (Dryseal) threads are compatible with NPT threads. SAE-LT threads are tapered.
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 | 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 | 3/4" | 13/64" | 13/64" | 3/8" | __ | 10,000 | Ball | 10 | 0000000 | 000000 | 00000 |
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 | 00000 | 00000 |
1/8 PTF-SAE Threads | ||||||||||||
| 0.373-0.38" | Zinc-Plated Steel | 49/64" | 13/64" | 13/64" | 7/16" | __ | 10,000 | Ball | 10 | 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. 303 stainless steel adapters are more corrosion resistant than brass adapters and have good chemical resistance.
PTF-SAE 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.
Oil Fittings
Zinc and zinc-plated steel fittings have mild corrosion resistance. Nickel-plated brass fittings are more corrosion resistant than zinc-plated brass fittings.
Fittings with a self-closing hinged cover block contaminants from entering equipment.
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.
Note: Fittings do not hold oil; any oil dispensed into the fittings passes into the part to be lubricated.
Each | ||||||||
|---|---|---|---|---|---|---|---|---|
| Material | Overall Ht. | Overall Wd. | Shank Lg. | Thread Lg. | Installation Clearance | 1-9 | 10-Up | |
1/8 Male NPT Threads | ||||||||
| Zinc | 25/32" | 1 3/32" | 1/4" | 1/4" | 1 5/16" | 0000000 | 000000 | 000000 |
10-32 Male UNF Threads | ||||||||
| Zinc | 19/32" | 3/4" | 5/32" | 5/32" | 1 1/16" | 0000000 | 00000 | 00000 |
1/4"-32 Male UNEF Threads | ||||||||
| Zinc | 19/32" | 3/4" | 3/16" | 3/16" | 1 1/16" | 0000000 | 00000 | 00000 |
5/16"-32 Male UNEF Threads | ||||||||
| Zinc | 25/32" | 1 3/32" | 3/16" | 3/16" | 1 5/16" | 0000000 | 00000 | 00000 |
Oil Fittings for Unthreaded Holes
Drive these fittings into unthreaded holes.
Zinc and zinc-plated steel fittings have mild corrosion resistance.
Fittings with a self-closing hinged cover block contaminants from entering equipment.
Note: Fittings do not hold oil; any oil dispensed into the fittings passes into the part to be lubricated.
For technical drawings and 3-D models, click on a part number.
Swivels for Container-Mount Grease Dispenser Nozzles
Move grease-dispensing guns in any direction without kinking the outlet hose.
For technical drawings and 3-D models, click on a part number.