Self-Tapping Grease Fittings

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21 Products

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.

Straight with Male Threads

										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

90° Elbow with Male Threads

											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

65° Elbow with Male Threads

										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

45° Elbow with Male Threads

											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