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. 303 stainless steel fittings are more corrosion resistant than brass fittings and have good chemical resistance. 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.
SAE-LT threads are tapered but designed to be installed into a 1/4"-28 straight-thread UNF hole.
Male
Threads
Pkg. | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Material | Overall Ht. | Thread Lg. | Shank Lg. | Hex Size | Max. Pressure, psi | Check Valve Type | Pkg. Qty. | 1-9 | 10-Up | |
1/4"-28 SAE-LT Threads | ||||||||||
| Zinc-Plated Steel | 17/32" | 1/8" | 3/16" | 5/16" | 10,000 | Ball | 10 | 0000000 | 00000 | 00000 |
| Zinc-Plated Steel | 11/16" | 13/64" | 23/64" | 5/16" | 10,000 | Ball | 10 | 0000000 | 0000 | 0000 |
| Zinc-Plated Steel | 31/32" | 13/64" | 5/8" | 5/16" | 10,000 | Ball | 10 | 0000000 | 0000 | 0000 |
| Zinc-Plated Steel | 1 1/8" | 13/64" | 25/32" | 5/16" | 10,000 | Ball | 10 | 0000000 | 00000 | 00000 |
| Zinc-Plated Steel | 1 5/8" | 1/4" | 1" | 5/16" | 10,000 | Ball | 5 | 0000000 | 0000 | 0000 |
303 Stainless Steel | 17/32" | 7/64" | 3/16" | 5/16" | 10,000 | Ball | 5 | 0000000 | 00000 | 00000 |
| 303 Stainless Steel | 19/32" | 7/32" | 7/32" | 9/32" | 10,000 | Ball | 3 | 0000000 | 00000 | 0000 |
| 400 Nickel | 17/32" | 3/16" | 3/16" | 5/16" | 10,000 | Ball | 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 | |
1/4"-28 SAE-LT Threads | ||||||||||
| Zinc-Plated Steel | 3/4" | 5/32" | 13/64" | 3/8" | 10,000 | Ball | 10 | 0000000 | 000000 | 000000 |
| 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 |
Pkg. | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Material | Overall Ht. | Thread Lg. | Shank Lg. | Hex Size | Max. Pressure, psi | Check Valve Type | Pkg. Qty. | 1-9 | 10-Up | |
1/4"-28 SAE-LT Threads | ||||||||||
| Zinc-Plated Steel | 13/16" | 5/32" | 13/64" | 3/8" | 10,000 | Ball | 10 | 0000000 | 00000 | 00000 |
| Zinc-Plated Steel | 63/64" | 5/16" | 5/16" | 3/8" | 8,000 | Ball | 10 | 0000000 | 00000 | 00000 |
| 303 Stainless Steel | 15/16" | 13/64" | 13/64" | 3/8" | 10,000 | Ball | 3 | 0000000 | 00000 | 00000 |
Grease Fitting Assortments
Keep a variety of grease fitting shapes, styles, and sizes on hand. These fittings are also known as hydraulic grease fittings.
Fittings with a serrated shank are for unthreaded holes. Drive them in with a hammer and grease fitting installation tool (not included). The serrated shank creates a tight grip.
Zinc-plated steel fittings have mild corrosion resistance. 303 stainless steel fittings are more corrosion resistant than steel fittings.
134-piece assortments include tools to remove worn fittings and repair threaded holes.
PTF-SAE (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 | Container Type | Gender | Max. Pressure, psi | Each | |
Threaded Shank | |||||||
|---|---|---|---|---|---|---|---|
| 8 | Zinc-Plated Steel | 4 Each 1/4"-28 SAE-LT Straight Grease Fittings 2 Each 1/4"-28 SAE-LT 45° Elbow Grease Fittings 2 Each 1/4"-28 SAE-LT 90° Elbow Grease Fittings | __ | Male | 7,000 | 000000 | 00000 |
| 48 | Zinc-Plated Steel | 12 Each 1/8 PTF-SAE Straight Grease Fittings 6 Each 1/8 PTF-SAE 45° Elbow Grease Fittings 6 Each 1/8 PTF-SAE 90° Elbow Grease Fittings 12 Each 1/4"-28 SAE-LT Straight Grease Fittings 6 Each 1/4"-28 SAE-LT 45° Elbow Grease Fittings 6 Each 1/4"-28 SAE-LT 90° Elbow Grease Fittings | Plastic Case | Male | 10,000 | 000000 | 00000 |
| 50 | Zinc-Plated 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 | 00000 |
| 50 | 303 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 |
| 100 | Zinc-Plated Steel | 30 Each 1/8 PTF-SAE Straight Grease Fittings 10 Each 1/8 PTF-SAE 45° Elbow Grease Fittings 10 Each 1/8 PTF-SAE 90° Elbow Grease Fittings 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 | 5,000 | 000000 | 00000 |
| 134 | Zinc-Plated Steel | 36 Each 1/8 PTF-SAE Straight Grease Fittings 12 Each 1/8 PTF-SAE 30° Elbow Grease Fittings 12 Each 1/8 PTF-SAE 45° Elbow Grease Fittings 12 Each 1/8 PTF-SAE 65° Elbow Grease Fittings 12 Each 1/8 PTF-SAE 90° Elbow Grease Fittings 1 Each 1/8 PTF-SAE Grease Fitting Tool for Threaded Holes 24 Each 1/4"-28 SAE-LT Straight Grease Fittings 12 Each 1/4"-28 SAE-LT 45° Elbow Grease Fittings 12 Each 1/4"-28 SAE-LT 90° Elbow Grease Fittings 1 Each 1/4"-28 SAE-LT Grease Fitting Tool for Threaded Holes | Metal Case | Male | 8,000 | 0000000 | 000000 |
| 136 | Zinc-Plated Steel | 40 Each 1/8 PTF-SAE Straight Grease Fittings 8 Each 1/8 PTF-SAE 45° Elbow Grease Fittings 8 Each 1/8 PTF-SAE 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 | 00000 |
| 136 | 303 Stainless Steel | 40 Each 1/8 PTF-SAE Straight Grease Fittings 8 Each 1/8 PTF-SAE 45° Elbow Grease Fittings 8 Each 1/8 PTF-SAE 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 |
| 375 | Zinc-Plated Steel | 55 Each 1/8 PTF-SAE Straight Grease Fittings 25 Each 1/8 PTF-SAE 30° Elbow Grease Fittings 25 Each 1/8 PTF-SAE 45° Elbow Grease Fittings 25 Each 1/8 PTF-SAE 65° Elbow Grease Fittings 25 Each 1/8 PTF-SAE 90° Elbow Grease Fittings 25 Each 1/4 PTF-SAE Straight Grease Fittings 25 Each 1/4 PTF-SAE 67.5° Elbow Grease Fittings 120 Each 1/4"-28 SAE-LT Straight Grease Fittings 25 Each 1/4"-28 SAE-LT 45° Elbow Grease Fittings 25 Each 1/4"-28 SAE-LT 90° Elbow Grease Fittings | Plastic Case | Male | 10,000 | 0000000 | 000000 |
Threaded and Serrated Shank | |||||||
| 50 | 303 Stainless Steel | 10 Each 1/8 PTF-SAE Straight Grease Fittings—Threaded Shank 5 Each 1/8 PTF-SAE 45° Elbow Grease Fittings—Threaded Shank 5 Each 1/8 PTF-SAE 90° Elbow Grease Fittings—Threaded Shank 5 Each 1/4 PTF-SAE Straight Grease Fittings—Threaded Shank 10 Each 1/4"-28 SAE-LT Straight Grease Fittings—Threaded Shank 5 Each 1/4"-28 SAE-LT 45° Elbow Grease Fittings—Threaded Shank 5 Each 1/4"-28 SAE-LT 90° Elbow Grease Fittings—Threaded Shank 5 Each Straight Grease Fittings for 3/16" Hole Diameter—Serrated Shank | Plastic Case | Male | 5,000 | 0000000 | 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.
SAE-LT threads are tapered.
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 | |
1/4"-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 |
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 | |
1/4"-28 SAE-LT Threads | |||||||||||
| 0.23-0.235" | Zinc-Plated Steel | 13/16" | 13/64" | 13/64" | 3/8" | 10,000 | Ball | 10 | 0000000 | 000000 | 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.
Connection | |||||
|---|---|---|---|---|---|
| Male | Female | Material | Pkg. Qty. | Pkg. | |
Adapters | |||||
| SAE-LT 1/4"-28 | UNF 1/4"-28 | Zinc-Plated Steel | 5 | 0000000 | 00000 |
Grease Dispensers
A spring delivers a constant, low-pressure flow of grease to your lubrication point, so it never runs dry. They’re best for applications with consistent temperatures, so the viscosity of the grease won’t change how quickly it flows. However, they shouldn’t be used in precision applications because the tension of the spring may change, causing the dispensing rate to change. Mount them close to the lubrication point. They have a standard grease fitting, so you can choose what grease to use, unlike prefilled dispensers. The grease fitting helps close the system to keep out dust and contaminants in dirty environments such as mills. Use grease fitting adapters to match your lubrication point.
Dispensers with a clear plastic bowl make it easy to see how much grease is left and whether the dispenser is working properly. These dispensers come with three different adjustment springs to fit your dispensing needs.
Plastic housings are an economical choice when there's minimal vibration. Aluminum housings withstand vibration, shock, and impact. Nickel-chrome-plated aluminum housings resist corrosion better than plastic and aluminum dispensers.
Remote-mount springs (sold separately) provide extra pressure when using thick grease at a distance.
Remote-mount kits include a mounting bracket, tubing, and fittings.
Grease Dispensers | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Grease Outlet | Each | Remote-Mount Springs | |||||||||||||
| Cap., fl. oz. | For NLGI Viscosity Grade | Max. Grease Outlet Pressure, psi | Bowl Dia. | Overall Ht. | Thread Type | Pipe Size | Gender | Max. Distance from Lubrication Point, ft. | Loading Method | Temp. Range, °F | 1-5 | 6-Up | Each | ||
Plastic Bowl—Clear | |||||||||||||||
Plastic Housing | |||||||||||||||
| 1 | 0, 1, 2, 3, 4 | 5 | 1 3/4" | 3 5/8" | NPT | 1/8 | Male | 6 | Grease Gun | -10° to 250° | 0000000 | 000000 | 000000 | 0000000 | 00000 |
| 2 | 0, 1, 2, 3, 4 | 5 | 2 3/8" | 4 5/8" | NPT | 1/8 | Male | 6 | Grease Gun | -10° to 250° | 0000000 | 00000 | 00000 | 0000000 | 0000 |
| 6 | 0, 1, 2, 3, 4 | 5 | 3" | 6" | NPT | 1/8 | Male | 6 | Grease Gun | -10° to 250° | 0000000 | 000000 | 00000 | 0000000 | 00000 |
Anodized Aluminum Housing | |||||||||||||||
| 1 | 0, 1, 2, 3, 4 | 5 | 1 3/4" | 3 5/8" | NPT | 1/8 | Male | 6 | Grease Gun | -10° to 250° | 0000000 | 00000 | 00000 | 0000000 | 0000 |
| 2 | 0, 1, 2, 3, 4 | 5 | 2 3/8" | 4 5/8" | NPT | 1/8 | Male | 6 | Grease Gun | -10° to 250° | 0000000 | 000000 | 000000 | 0000000 | 0000 |
| 6 | 0, 1, 2, 3, 4 | 5 | 3" | 6" | NPT | 1/8 | Male | 6 | Grease Gun | -10° to 250° | 0000000 | 000000 | 000000 | 0000000 | 00000 |
Nickel-Chrome-Plated Aluminum Housing | |||||||||||||||
| 1 | 0, 1, 2, 3, 4 | 5 | 1 3/4" | 3 5/8" | NPT | 1/8 | Male | 6 | Grease Gun | -10° to 250° | 0000000 | 000000 | 000000 | 0000000 | 0000 |
| 2 | 0, 1, 2, 3, 4 | 5 | 2 3/8" | 4 5/8" | NPT | 1/8 | Male | 6 | Grease Gun | -10° to 250° | 0000000 | 000000 | 000000 | 0000000 | 0000 |
| 6 | 0, 1, 2, 3, 4 | 5 | 3" | 6" | NPT | 1/8 | Male | 6 | Grease Gun | -10° to 250° | 0000000 | 000000 | 000000 | 0000000 | 00000 |
Grease Outlet | Grease Inlet | Tube | Mounting | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Thread Type | Thread Size | Gender | Thread Type | Inlet Pipe Size | Gender | Lg., ft. | OD | Material | Hole Dia. | No. of Holes | Fasteners Included | Each | |
| SAE-LT | 1/4"-28 | Male | NPT | 1/8 | Female | 10 | 1/4" | Nylon Plastic | 3/8" | 2 | No | 00000000 | 000000 |
Grease Fitting Size Identifiers
Take the guesswork out of determining the thread type and size of a grease fitting. Screw the shank of a grease fitting into the labeled holes of these identifiers until you find the one that fits.
| For Thread Type | For Thread Location | For Thread Size | For Screw Size | For Pipe Size | Wd. | Ht. | Thick. | Each | |
Inch, Metric | |||||||||
|---|---|---|---|---|---|---|---|---|---|
Aluminum | |||||||||
| NPT, SAE-LT, BSW, UNF, BSPT, BSF, Metric | External | 3/16"-32, 1/4"-20, 1/4"-26, 1/4"-28, 5/16"-18, 5/16"-22, 5/16"-24, 3/8"-20, 3/8"-24, 1/2"-12, M6 × 0.75 mm, M6 × 1 mm, M8 × 1 mm, M8 × 1.25 mm, M10 × 1 mm, M10 × 1.5 mm | 1/8", 1/4" | 1/8, 1/4, 3/8 | 8 1/2" | 3" | 1/4" | 0000000 | 000000 |