About Grease Fitting Threads
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About Oil Fittings and Oil Cups
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About Nuts, Materials, and Finishes
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Caps for Mil. Spec. Screw-Together Connectors
Protect Mil. Spec. connectors when not in use.
For technical drawings and 3-D models, click on a part number.
Thread | |||||
---|---|---|---|---|---|
Size | Type | Material | Temp. Range, °F | Each | |
External Thread | |||||
5/8"-24 | UNEF | Cadmium-Plated Aluminum | -65° to 255° | 0000000 | 000000 |
7/8"-20 | UNEF | Cadmium-Plated Aluminum | -65° to 255° | 0000000 | 00000 |
1"-20 | UNEF | Cadmium-Plated Aluminum | -65° to 255° | 0000000 | 00000 |
1 1/8"-18 | UNEF | Cadmium-Plated Aluminum | -65° to 255° | 0000000 | 00000 |
1 1/4"-18 | UNEF | Cadmium-Plated Aluminum | -65° to 255° | 0000000 | 00000 |
Internal Thread | |||||
5/8"-24 | UNEF | Cadmium-Plated Aluminum | -65° to 255° | 0000000 | 00000 |
7/8"-20 | UNEF | Cadmium-Plated Aluminum | -65° to 255° | 0000000 | 00000 |
1"-20 | UNEF | Cadmium-Plated Aluminum | -65° to 255° | 0000000 | 00000 |
1 1/8"-18 | UNEF | Cadmium-Plated Aluminum | -65° to 255° | 0000000 | 00000 |
1 1/4"-18 | UNEF | Cadmium-Plated Aluminum | -65° to 255° | 0000000 | 00000 |
Round Coupling Nuts
With a smooth rounded body for a finished look, use these nuts to connect and extend threaded rods.
Black-oxide steel coupling nuts have mild corrosion resistance.
18-8 stainless steel coupling nuts have good chemical resistance.
For technical drawings and 3-D models, click on a part number.
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.
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. | 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 | 21/32" | 9/64" | 15/64" | 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" | 11/64" | 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. Nickel-plated brass fittings are more corrosion resistant than zinc-plated brass fittings.
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 | 000000 | 000000 |
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 |