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.
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.
Zinc-plated steel fittings have mild corrosion resistance. 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.
Pkg. | ||||||||
|---|---|---|---|---|---|---|---|---|
| Material | Overall Ht. | Shank Lg. | Head Dia. | Check Valve Type | Pkg. Qty. | 1-9 | 10-Up | |
For 1/8" Hole Dia. | ||||||||
| Zinc-Plated Steel | 15/32" | 5/32" | 5/16" | Without Valve | 10 | 0000000 | 00000 | 00000 |
| Zinc-Plated Steel | 9/16" | 1/4" | 5/16" | Without Valve | 10 | 0000000 | 0000 | 0000 |
For 3/16" Hole Dia. | ||||||||
| Zinc-Plated Steel | 13/32" | 3/32" | 5/16" | Ball | 10 | 0000000 | 0000 | 0000 |
| Zinc-Plated Steel | 15/32" | 11/64" | 5/16" | Without Valve | 10 | 0000000 | 0000 | 0000 |
| Zinc-Plated Steel | 31/64" | 7/32" | 9/32" | Without Valve | 10 | 0000000 | 0000 | 0000 |
| Zinc-Plated Steel | 33/64" | 1/4" | 9/32" | Ball | 10 | 0000000 | 0000 | 0000 |
| Zinc-Plated Steel | 5/8" | 1/4" | 5/16" | Without Valve | 10 | 0000000 | 0000 | 0000 |
303 Stainless Steel | 1/2" | 7/32" | 5/16" | Ball | 5 | 0000000 | 0000 | 0000 |
For 1/4" Hole Dia. | ||||||||
| Zinc-Plated Steel | 15/32" | 1/8" | 11/32" | Without Valve | 10 | 0000000 | 0000 | 0000 |
| Zinc-Plated Steel | 35/64" | 1/4" | 11/32" | Ball | 10 | 0000000 | 0000 | 0000 |
| Zinc-Plated Steel | 9/16" | 17/64" | 11/32" | Without Valve | 10 | 0000000 | 0000 | 0000 |
| 303 Stainless Steel | 1/2" | 7/32" | 5/16" | Ball | 5 | 0000000 | 0000 | 0000 |
For 5/16" Hole Dia. | ||||||||
| Zinc-Plated Steel | 9/16" | 1/4" | 3/8" | Ball | 10 | 0000000 | 0000 | 0000 |
| Zinc-Plated Steel | 5/8" | 7/32" | 3/8" | Without Valve | 10 | 0000000 | 0000 | 0000 |
For 3/8" Hole Dia. | ||||||||
| Zinc-Plated Steel | 21/32" | 1/4" | 7/16" | Ball | 10 | 0000000 | 0000 | 0000 |
Pkg. | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Material | Overall Ht. | Shank Lg. | Head Dia. | Check Valve Type | Specifications Met | Pkg. Qty. | 1-9 | 10-Up | |
For 5mm Hole Dia. | |||||||||
| Zinc-Plated Steel | 15mm | 5.5mm | 8mm | Ball | DIN 71412 | 10 | 0000000 | 00000 | 00000 |
For 6mm Hole Dia. | |||||||||
| Zinc-Plated Steel | 15mm | 5.5mm | 8mm | Ball | DIN 71412 | 10 | 0000000 | 0000 | 0000 |
| 303 Stainless Steel | 14mm | 4mm | 8mm | Ball | DIN 71412 | 1 | 0000000 | 0000 | 0000 |
For 8mm Hole Dia. | |||||||||
| Zinc-Plated Steel | 15mm | 5.5mm | 10mm | Ball | DIN 71412 | 10 | 0000000 | 0000 | 0000 |
For 10mm Hole Dia. | |||||||||
| Zinc-Plated Steel | 15mm | 5.5mm | 12mm | Ball | DIN 71412 | 10 | 0000000 | 0000 | 0000 |
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 |
Pkg. | ||||||||
|---|---|---|---|---|---|---|---|---|
| Material | Overall Ht. | Shank Lg. | Hex Size | Check Valve Type | Pkg. Qty. | 1-9 | 10-Up | |
For 3/16" Hole Dia. | ||||||||
| Zinc-Plated Steel | 53/64" | 7/32" | 7/16" | Ball | 10 | 0000000 | 000000 | 000000 |
Flush-Style Grease Fittings for Unthreaded Holes
Since they don’t protrude, these fittings avoid damage from impact and fit in tight spaces. Use a hammer and grease fitting installation tool (not included) to drive them into unthreaded holes. 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.
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.
Zinc-plated steel fittings have mild corrosion resistance. 303 stainless steel fittings are more corrosion resistant than zinc-plated steel fittings and have good chemical resistance.
Pkg. | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Material | Overall Ht. | Shank Lg. | Head Dia. | Max. Pressure, psi | Check Valve Type | Pkg. Qty. | 1-9 | 10-Up | |
For 3/16 " Hole Dia. | |||||||||
| Zinc-Plated Steel | 3/8" | 5/16" | 1/4" | 8,000 | Ball | 5 | 0000000 | 00000 | 00000 |
Pkg. | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Material | Overall Ht. | Shank Lg. | Head Dia. | Max. Pressure, psi | Check Valve Type | Specifications Met | Pkg. Qty. | 1-9 | 10-Up | |
For 1/8" Hole Dia. | ||||||||||
| Zinc-Plated Steel | 5/32" | 1/8" | 5/32" | 1,500 | Ball | __ | 5 | 0000000 | 000000 | 00000 |
For 1/4" Hole Dia. | ||||||||||
| Zinc-Plated Steel | 9/32" | 15/64" | 5/16" | Not Rated | Ball | __ | 5 | 0000000 | 0000 | 0000 |
For 5/16" Hole Dia. | ||||||||||
| Zinc-Plated Steel | 11/32" | 9/32" | 3/8" | Not Rated | Ball | __ | 5 | 0000000 | 0000 | 0000 |
For 5mm Hole Dia. | ||||||||||
| Zinc-Plated Steel | 7.5mm | 5.5mm | 8mm | Not Rated | Ball | __ | 5 | 0000000 | 0000 | 0000 |
For 6mm Hole Dia. | ||||||||||
| Zinc-Plated Steel | 7.5mm | 5.5mm | 8mm | 10,000 | Ball | DIN 3405 | 5 | 0000000 | 00000 | 00000 |
| 303 Stainless Steel | 7.5mm | 5.5mm | 8mm | 1,450 | Ball | DIN 3405 | 1 | 0000000 | 00000 | 0000 |
For 8mm Hole Dia. | ||||||||||
| Zinc-Plated Steel | 9.5mm | 6.5mm | 10mm | 10,000 | Ball | DIN 3405 | 5 | 0000000 | 00000 | 00000 |
For 10mm Hole Dia. | ||||||||||
| Zinc-Plated Steel | 9.5mm | 6.5mm | 12mm | 10,000 | Ball | DIN 3405 | 3 | 0000000 | 0000 | 0000 |
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.
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 | 35/64" | 3/16" | 3/32" | 5/16" | 8,000 | Ball | 10 | 0000000 | 00000 | 00000 |
| 0.23-0.235" | Zinc-Plated Steel | 37/64" | 13/64" | 13/64" | 5/16" | 10,000 | Ball | 10 | 0000000 | 0000 | 0000 |
M6 × 1 mm Metric Threads | |||||||||||
| 5.6-5.7mm | Zinc-Plated Steel | 14mm | 5.5mm | 5.5mm | 7mm | 8,000 | Ball | 10 | 0000000 | 0000 | 0000 |
| 5.6-5.7mm | Zinc-Plated Steel | 15mm | 5.5mm | 5.5mm | 7mm | 10,000 | Ball | 10 | 0000000 | 0000 | 0000 |
M8 × 1 mm Metric Threads | |||||||||||
| 7.6-7.7mm | Zinc-Plated Steel | 15mm | 5.5mm | 5.5mm | 9mm | 10,000 | Ball | 10 | 0000000 | 0000 | 0000 |
M10 × 1 mm Metric Threads | |||||||||||
| 9.6-9.7mm | Zinc-Plated Steel | 15mm | 5.5mm | 5.5mm | 11mm | 10,000 | Ball | 10 | 0000000 | 0000 | 0000 |
1/8 PTF-SAE Threads | |||||||||||
| 0.373-0.38" | Zinc-Plated Steel | 5/8" | 15/64" | 15/64" | 7/16" | 10,000 | Ball | 10 | 0000000 | 0000 | 0000 |
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 |
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 | |
1/8 PTF-SAE Threads | |||||||||||
| 0.373-0.38" | Zinc-Plated Steel | 3/4" | 13/64" | 13/64" | 7/16" | 10,000 | Ball | 10 | 0000000 | 000000 | 000000 |
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 | 13/16" | 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 | 20mm | 5.5mm | 5.5mm | __ | 9mm | 10,000 | Ball | 10 | 0000000 | 00000 | 00000 |
M8 × 1 mm Metric Threads | ||||||||||||
| 7.6-7.7mm | Zinc-Plated Steel | 20mm | 5.5mm | 5.5mm | __ | 9mm | 10,000 | Ball | 5 | 0000000 | 00000 | 0000 |
M10 × 1 mm Metric Threads | ||||||||||||
| 9.6-9.7mm | Zinc-Plated Steel | 20mm | 5.5mm | 5.5mm | __ | 11mm | 10,000 | Ball | 5 | 0000000 | 00000 | 00000 |
1/8 PTF-SAE Threads | ||||||||||||
| 0.373-0.38" | Zinc-Plated Steel | 55/64" | 5/16" | 1/4" | 7/16" | __ | 8,000 | Ball | 10 | 0000000 | 00000 | 00000 |
Self-Tapping Flush-Style Grease Fittings for Unthreaded Holes
Ensure a secure fit in unthreaded holes—these fittings cut threads as they’re installed. Use them in tight spaces where protruding fittings won't work. Install with a hex wrench. Fittings can be driven in, but then are not pressure rated. They’re zinc-plated steel for mild corrosion resistance. 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.
Pkg. | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| For Hole Dia. | Material | Overall Ht. | Shank Lg. | Thread Lg. | Hex Size | Max. Pressure, psi | Check Valve Type | Specifications Met | Pkg. Qty. | 1-9 | 10-Up | |
Straight with Male Threads | ||||||||||||
M6 × 1 mm Metric Threads | ||||||||||||
| 5.6-5.7 mm | Zinc-Plated Steel | 8.5 mm | 5.5 mm | 5.5 mm | 7 mm | 10,000 | Ball | DIN 3405 | 5 | 0000000 | 000000 | 000000 |
M8 × 1 mm Metric Threads | ||||||||||||
| 7.6-7.7 mm | Zinc-Plated Steel | 8.5 mm | 5.5 mm | 5.5 mm | 9 mm | 10,000 | Ball | DIN 3405 | 3 | 0000000 | 0000 | 0000 |
M10 × 1 mm Metric Threads | ||||||||||||
| 9.6-9.7 mm | Zinc-Plated Steel | 8.5 mm | 5.5 mm | 5.5 mm | 11 mm | 10,000 | Ball | DIN 3405 | 1 | 0000000 | 0000 | 0000 |
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.
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 | |
Serrated Shank | |||||||
|---|---|---|---|---|---|---|---|
| 48 | Zinc-Plated Steel | 12 Each Straight Grease Fittings for 3/16" Hole Diameter 6 Each 45° Elbow Grease Fittings for 3/16" Hole Diameter 6 Each 65° Elbow Grease Fittings for 3/16" Hole Diameter 12 Each Straight Grease Fittings for 1/4" Hole Diameter 6 Each Straight Grease Fittings for 5/16" Hole Diameter 6 Each Straight Grease Fittings for 3/8" Hole Diameter | Plastic Case | Male | 1,450 | 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 |
