1/4英寸 x 28英寸
黄油嘴
¼” x 28 threads include ¼” x 28 SAE-LT, Special Taper (Thread Forming) and ¼” x 28 UNF.
SAE-LT stands for Society of Automotive Engineers – Lubrication Thread.
Grease fittings or zerks with ¼” x 28 SAE-LT threads have a UNF thread form but with a 1:16 taper to ensure an optimal seal in a ¼” x 28 UNF tapped hole. Reference SAE J534.
The tapered thread is preferred as it negates the need for additional sealant and is less likely to become loose under vibration.
The self-forming version has a 90° thread form and a 10° diametral taper. Both these threads are unique to grease fittings.
UNF has a 60° thread form and is parallel.
These grease fittings are designed and manufactured from high quality materials at our site in Leeds.


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:
-
Better consistency and reliability
-
Faster turnaround times
-
Easier traceability and accountability
-
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.
1/4" x 28 - Standard Grease Fittings
Below are our most common 1/4″ x 28 fittings. To view the product please click the product code.
翠鸟代码 | 翠鸟代码 | 描述 |
White Trivalent. RoHS, REACH Compliant. | Yellow Chromate. Limited Availability. | |
1/4 x 28 SAE-LT Straight | ||
1/4 x 28 SAE-LT 45° | ||
1/4 x 28 SAE-LT 65° | ||
1/4 x 28 SAE-LT 90° | ||
1/4 x 28 SAE-LT 11/16 Long | ||
1/4 x 28 SAE-LT 15/16 Long | ||
1/4 x 28 SAE-LT 1.1/8 Long | ||
1/4 x 28 Self Form Straight | ||
1/4 x 28 Self Form 45° | ||
1/4 x 28 Self Form 45° Short | ||
1/4 x 28 Self Form 90° | ||
1/4 x 28 UNF Straight Short |
Looking for something else? Head back to our product homepage to view our full range of grease fittings 这里.
