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.
M6 x 1 Taper Short Straight Grease Fitting 303 Stainless Steel (A2)
808611
分类 303 Stainless, Metric
M6 x 0.75 Taper Straight Grease Fitting 303 Stainless Steel (A2)
808675
分类 303 Stainless, Metric
M8 x 1.25 Straight Parallel Grease Fitting 303 Stainless Steel
808056
分类 303 Stainless, Metric
3/16” Drive Fit No Ball Check Straight Grease Fitting 303 Stainless Steel
803008
分类 303 Stainless, Drive
3/16” Drive Fit No Ball Check Straight Grease Fitting 303 Stainless Steel
808009
分类 303 Stainless, Drive
6mm Drive Fit Cup Type Grease Fitting 303 Stainless Steel
816601
分类 303 Stainless, Drive, Cup Type
8mm Drive Fit Cup Type Grease Fitting 303 Stainless Steel
818001
分类 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.

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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!
