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Thread Type Thread Type | Hide |
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System of Measurement System of Measurement |
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Cap Type Cap Type |
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 | Screw On |
Check Valve Type Check Valve Type |
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Gender Gender |
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Shank Type Shank Type |
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For Shape For Shape |
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 | Round |
Color Color |
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 | Red |
For Connection Type For Connection Type |
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Finish Finish |
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Profile Profile |
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Flexibility Flexibility |
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Maximum Temperature Maximum Temperature |
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About Oil Fittings and Oil Cups
More
About Grease Fitting Threads
More
Threaded Caps
Protect externally threaded components from contaminants during fabrication and storage.
Plastic caps resist corrosion better than aluminum caps.
For technical drawings and 3-D models, click on a part number.
Thread | ||||||||
|---|---|---|---|---|---|---|---|---|
| Size | Type | For OD | Inside Ht. | Max. Temp., °F | Color | Pkg. Qty. | Pkg. | |
Plastic | ||||||||
For Straight-Thread Pipe | ||||||||
| 5/8"-24 | UNEF | 5/8" | 13/32" | 150° | Red | 100 | 00000000 | 00000 |
| 3/4"-20 | UNEF | 3/4" | 1/2" | 150° | Red | 100 | 00000000 | 0000 |
| 7/8"-20 | UNEF | 7/8" | 23/32" | 150° | Red | 100 | 00000000 | 00000 |
| 1 1/8"-18 | UNEF | 1 1/8" | 15/32" | 150° | Red | 100 | 00000000 | 00000 |
| 1 1/4"-18 | UNEF | 1 1/4" | 15/32" | 150° | Red | 100 | 00000000 | 00000 |
| 1 3/8"-18 | UNEF | 1 3/8" | 15/32" | 150° | Red | 50 | 00000000 | 0000 |
Grease Fittings
These fittings are 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.
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.
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 | Pkg. Qty. | 1-9 | 10-Up | |
5/16"-32 UNEF Threads | ||||||||||
| Zinc-Plated Steel | 21/32" | 15/64" | 9/64" | 3/8" | 10,000 | Ball | 10 | 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 | |
5/16"-32 UNEF Threads | ||||||||||
| Zinc-Plated Steel | 51/64" | 7/32" | 7/32" | 3/8" | 10,000 | Ball | 10 | 0000000 | 000000 | 000000 |
Oil Fittings
Zinc and zinc-plated steel fittings have mild corrosion resistance. Zinc-plated brass fittings have good corrosion resistance. Fitting with a check valve prevents oil from leaking when pressure causes backward flow. The valve stays closed when not in use to keep out dirt and other contaminants. 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. | Shank Lg. | Thread Lg. | Installation Clearance | 1-9 | 10-Up | |
1/4"-32 Male UNEF Threads | |||||||
| Zinc-Plated Brass | 7/16" | 7/32" | 7/32" | 3/8" | 000000 | 00000 | 00000 |
Each | |||||||
|---|---|---|---|---|---|---|---|
| Material | Overall Ht. | Shank Lg. | Thread Lg. | Installation Clearance | 1-9 | 10-Up | |
1/4"-32 Male UNEF Threads | |||||||
| Zinc-Plated Steel | 9/16" | 5/32" | 5/32" | 11/16" | 0000000 | 000000 | 000000 |
| Zinc-Plated Steel | 9/16" | 3/16" | 3/16" | 3/4" | 0000000 | 00000 | 00000 |
| Zinc-Plated Steel | 3/4" | 1/4" | 1/4" | 3/4" | 0000000 | 00000 | 00000 |
5/16"-32 Male UNEF Threads | |||||||
| Zinc-Plated Steel | 27/32" | 1/4" | 1/4" | 13/16" | 0000000 | 00000 | 00000 |
Shoulder Screws
