303 Stainless Steel
Grease Fittings
303 is a free-machining grade of 304 stainless steel that contains added sulphur. The addition of the sulphur increases the machinability. Commonly referred to as A2, V2A or 1.4305 in Europe.
Its composition contains at minimum 17% Chromium, 8% nickel, and 0.15% Sulphur. The small addition of sulphur slightly reduces corrosion resistance but increases machineability which is why you will find its use in fasteners, bushings, bearings, and other smaller components.


Quality Grease Nipples, Made in Britain
At Kingfisher Lubrication, we manufacture our full range of grease fittings right here in Britain. From standard grease nipples to custom fittings, every part is made with care, using high-quality materials and strict quality checks.
Keeping our manufacturing in the UK means:
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Better consistency and reliability
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Faster turnaround times
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Easier traceability and accountability
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Support for British industry and jobs
We don’t cut corners or outsource key parts of the process. Our customers rely on us for products that last—and being made in Britain helps us deliver just that.
303 Stainless Steel - Standard Fittings
Below are our most common 303 Stainless Steel fittings. To view the product please click the product code.
Kingfisher Code | Description |
1/4 x 28 SAE-LT Straight | |
1/4 x 28 SAE-LT 45° | |
1/4 x 28 SAE-LT 90° | |
1/8 x 27 PTF Straight | |
1/8 x 27 PTF 45° | |
1/8 x 27 PTF 90° | |
1/8 x 28 BSPT (R1/8) Straight | |
1/8 x 28 BSPT (R1/8) 45° | |
1/8 x 28 BSPT (R1/8) 90° | |
M6 x 1 Straight | |
M6 x 1 45° | |
M6 x 1 90° | |
M8 x 1 Straight | |
M8 x 1 45° | |
M8 x 1 90° | |
M10 x 1 Straight | |
M10 x 1 45° | |
M10 x 1 90° |
Some fittings are also available in 316 stainless steel.
1/4″ x 28 SAE-LT Straight Grease Fitting 303 Stainless Steel
808025
Kategorie 303 Stainless, American, 1/4 x 28
1/4″ x 28 SAE-LT 45˚ Grease Fitting 303 Stainless Steel
812545
Kategorie 303 Stainless, American, 1/4 x 28
1/4″ x 28 SAE-LT 90˚ Grease Fitting 303 Stainless Steel
812590
Kategorie 303 Stainless, American, 1/4 x 28
1/4″ x 28 SAE-LT Straight Grease Fitting 303 Stainless Steel
808052
Kategorie 303 Stainless, American, 1/4 x 28
1/4″ x 28 SAE-LT Straight Grease Fitting 303 Stainless Steel
801680
Kategorie 303 Stainless, Product Long, American, 1/4 x 28
1/8″ x 27 PTF (NPT) Straight Grease Fitting 303 Stainless Steel (A2)
808082
Kategorie 303 Stainless, American, 1/8 x 27
1/8″ x 27 PTF 45˚ Grease Fitting 303 Stainless Steel
818245
Kategorie 303 Stainless, American, 1/8 x 27
1/8″ x 27 PTF 65˚ Grease Fitting 303 Stainless Steel
818267
Kategorie 303 Stainless, American, 1/8 x 27
1/8″ x 27 PTF 90˚ Grease Fitting 303 Stainless Steel
818290
Kategorie 303 Stainless, American, 1/8 x 27
1/4″ x 18 PTF Straight Grease Fitting 303 Stainless Steel
808126
Kategorie 303 Stainless, American
1/4″ x 18 PTF Special Extra Short 90˚ Grease Fitting 303 Stainless Steel
812690
Kategorie 303 Stainless, American
3/8″ x 18 PTF Straight Grease Fitting 303 Stainless Steel
803818
Kategorie 303 Stainless, American
1/8″ x 28 BSPT (R1/8″) Straight Grease Fitting 303 Stainless Steel
808014
Kategorie 303 Stainless, British, BSP Threads
1/8″ x 28 BSPT (R1/8″) 45˚ Grease Fitting 303 Stainless Steel
811445
Kategorie 303 Stainless, British, BSP Threads
1/8″ x 28 BSPT (R1/8″) 90˚ Grease Fitting 303 Stainless Steel
811490
Kategorie 303 Stainless, British, BSP Threads
1/4″ x 19 BSPT (R1/4″) Straight Grease Fitting 303 Stainless Steel
808103
Kategorie 303 Stainless, British, BSP Threads
1/4″ x 19 BSPT (R1/4″) 45˚ Grease Fitting 303 Stainless Steel
810345
Kategorie 303 Stainless, British, BSP Threads
1/4″ x 19 BSPT (R1/4″) 90˚ Grease Fitting 303 Stainless Steel
810390
Kategorie 303 Stainless, British, BSP Threads
3/8″ x 19 BSP (R3/8″) Straight Grease Fitting 303 Stainless Steel
801758
Kategorie 303 Stainless, British, BSP Threads
M5 x 0.8 Taper Straight Grease Fitting 303 Stainless Steel
805181
Kategorie 303 Stainless, Metric
M6 x 1 Taper Straight Grease Fitting 303 Stainless Steel (A2)
808036
Kategorie 303 Stainless, Metric
M6 x 1 Taper 45˚ Grease Fitting 303 Stainless Steel (A2)
813645
Kategorie 303 Stainless, Metric
M6 x 1 Taper 90˚ Grease Fitting 303 Stainless Steel (A2)
813690
Kategorie 303 Stainless, Metric
M6 x 1 Taper Short Straight Grease Fitting 303 Stainless Steel (A2)
808611
Kategorie 303 Stainless, Metric
M6 x 1 30mm Long Straight Grease Fitting 303 Stainless Steel (A2)
808661
Kategorie 303 Stainless, Metric, Product Long
M6 x 1 40mm Long Straight Grease Fitting 303 Stainless Steel
808640
Kategorie 303 Stainless, Metric, Product Long
M6 x 1 40mm Long 90° Grease Fitting 303 Stainless Steel
81864090
Kategorie 303 Stainless, Metric, Product Long
M6 x 0.75 Taper Straight Grease Fitting 303 Stainless Steel (A2)
808675
Kategorie 303 Stainless, Metric
M8 x 1 Taper Straight Grease Fitting 303 Stainless Steel (A2)
808058
Kategorie 303 Stainless, Metric
M10 x 1 Taper Straight Grease Fitting 303 Stainless Steel
808071
Kategorie 303 Stainless, Metric
M8 x 1.25 Taper Straight Grease Fitting 303 Stainless Steel
808057
Kategorie 303 Stainless, Metric
M8 x 1.25 Straight Parallel Grease Fitting 303 Stainless Steel
808056
Kategorie 303 Stainless, Metric
M10 x 1.5 Taper Straight Grease Fitting 303 Stainless Steel
808073
Kategorie 303 Stainless, Metric
M12 x 1.5 Taper Straight Grease Fitting 303 Stainless Steel
804301
Kategorie 303 Stainless, Metric
M12 x 1.5 Taper 90˚ Grease Fitting 303 Stainless Steel (A2)
814390
Kategorie 303 Stainless, Metric
M12 x 1.75 Taper Straight Grease Fitting 303 Stainless Steel
804501
Kategorie 303 Stainless, Metric
M14 x 1.5 Taper Straight Grease Fitting 303 Stainless Steel
801415
Kategorie 303 Stainless, Metric
M16 x 1.5 Taper Straight Grease Fitting 303 Stainless Steel
801615
Kategorie 303 Stainless, Metric
1/4″ x 26 BSF Straight Grease Fitting 303 Stainless Steel
801901
Kategorie 303 Stainless, British
5/16” x 24 UNF Straight Grease Fitting 303 Stainless Steel
801711
Kategorie 303 Stainless, American
3/8″ x 24 UNF Straight Grease Fitting 303 Stainless Steel
808010
Kategorie 303 Stainless, American
3/8″ x 20 BSF Straight Grease Fitting 303 Stainless Steel
804701
Kategorie 303 Stainless, British
3/16″ Drive Fit Straight Grease Fitting 303 Stainless Steel
808028
Kategorie 303 Stainless, Drive
1/4″ Drive Fit Straight Grease Fitting 303 Stainless Steel
808043
Kategorie 303 Stainless, Drive
3/16” Drive Fit No Ball Check Straight Grease Fitting 303 Stainless Steel
803008
Kategorie 303 Stainless, Drive
3/16” Drive Fit No Ball Check Straight Grease Fitting 303 Stainless Steel
808009
Kategorie 303 Stainless, Drive
6mm Hydraulic Drive Fit Grease Fitting 303 Stainless Steel
809601
Kategorie 303 Stainless, Drive
1/8″ x 28 BSP (G1/8″) British Button Head 303 Stainless Steel
824001
Kategorie 303 Stainless, Button Head Grease Fitting, British, BSP Threads
1/4″ BSP (G1/4″) British Button Head 303 Stainless Steel
825201
Kategorie 303 Stainless, Button Head Grease Fitting, British, BSP Threads
1/8″ x 28 BSP (G1/8″) Industrial Button Head 303 Stainless Steel
827101
Kategorie 303 Stainless, Button Head Grease Fitting, British, BSP Threads
1/4″ x 19 BSP (G1/4″) Industrial Button Head 303 Stainless Steel
827501
Kategorie 303 Stainless, Button Head Grease Fitting, British, BSP Threads
1/8″ x 28 BSP (G1/8″) 16mm DIN 3404 Button Head 303 Stainless Steel
828101
Kategorie 303 Stainless, Button Head Grease Fitting, British, BSP Threads
1/4″ x 19 BSP (G1/4″) 16mm DIN3404 Button Head 303 Stainless Steel
828501
Kategorie 303 Stainless, Button Head Grease Fitting, British, BSP Threads
M10 x 1 16mm DIN 3404 Button Head 303 Stainless Steel
828601
Kategorie 303 Stainless, Metric, Button Head Grease Fitting
M8 x 1.25 16mm DIN 3404 Button Head 303 Stainless Steel
828801
Kategorie 303 Stainless, Metric, Button Head Grease Fitting
1/8 x 27 PTF 303 Stainless Steel American Button Head
82331184
Kategorie 303 Stainless, Button Head Grease Fitting, American, 1/8 x 27
1/4″ x 18 PTF 303 Stainless Steel American Button Head
82331186
Kategorie 303 Stainless, Button Head Grease Fitting, American
M4 x 0.7 DIN 3405 Cup Type 303 Stainless Steel
814071
Kategorie 303 Stainless, Metric, Cup Type
M6 x 1 Long Thread Cup Type 303 Stainless Steel
816101
Kategorie 303 Stainless, Metric, Product Long, Cup Type
M10 x 1 DIN 3405 Cup Type 303 Stainless Steel
816010
Kategorie 303 Stainless, Metric, Cup Type
1/8″ x 28 BSP G1/8 10mm Long Shank Cup Type 303 Stainless Steel
8161418
Kategorie 303 Stainless, British, BSP Threads, Cup Type
6mm Drive Fit Cup Type Grease Fitting 303 Stainless Steel
816601
Kategorie 303 Stainless, Drive, Cup Type
8mm Drive Fit Cup Type Grease Fitting 303 Stainless Steel
818001
Kategorie 303 Stainless, Drive, Cup Type
Looking for something else? View our full range of grease fittings and other fittings on our dedicated product page here.

Not found whatyou're looking for?
Use the bar below to search the whole site, or if you still can’t find what you need, just give us a call! +44 (0)113 209 8989
Not found what you're looking for?
Use the bar below to search the whole site, or if you still can’t find what you need, just give us a call!
