What size thread is a Zerk fitting?

What size thread is a Zerk fitting?

1/4″
The most common standard grease fitting size is 1/4″‑28 SAE‑LT and is often used in automotive applications. They can also be found in agricultural environments as well as other various standard duty applications. For heavy duty applications, larger 1/8″‑27 PTF zerk fittings can be found.

Is grease Zerks pipe threaded?

SAE Products 1/8″ pipe thread grease fittings are commonly referred to as 1/8″ pipe thread zerk fittings. Below is an image and drawing of SAE Products H-200 1/8″ PTF grease fitting.

What size drill and tap for a grease fitting?

Grease Fitting Thread Size

Fitting Thread Size	Tap Drill Selection For Standard Thread Fittings	Drill Size Selection for Spin Drive Fittings
1/4″-28	#3 (for soft metal use #5)	“A” – .234″ Dia.
5/16″-32	9/32″ (for soft metal use “J”)	–
1/8″ Pipe	11/32″ (for soft metal use “R”)	3/8 – .375″ Dia.*
1/4″ Pipe	7/16″	–

Are all grease Zerks the same size?

There is effectively just one size. There are some other weird ones out there, the common being button head I believe, but if it looks like a standard grease zerk it is going to be the standard size.

What thread are grease nipples?

There are two grease fittings that are very common. These are the 1/4″-28 thread and the 1/8″ NPT thread. However, there are other less common grease fitting threads in use.

What is SAE-lt thread?

SAE-LT threads are a common taper thread which are used primarily on grease fittings. This thread form is a modification of the standard 1/4″-28 UNF thread and is intended to thread into a parallel 1/4″-28 UNF-3B hole with a maximum minor diameter of 0.215″ if a 75% minimum thread height is to be maintained.

What are the different types of grease fittings?

There are three major thread types for grease fittings: metric, taper or parallel, and unified. M5, M6, M7, M8, and M10 are common metric threads. British standard pipe (BSP), pipe thread fine (PTF), and national pipe thread fine (NPTF) fittings use tapered or parallel threads.

What is a button head grease fitting?

Button head grease fittings are a heavier duty fitting distinguished by its flat, low profile appearance. They are able to handle large grease volume due to their high flow rate and sturdy construction. Button head fittings feature a smooth working surface and allow for easier coupler attachment and removal.

What thread size are grease fittings?

1/4″-28
Grease fittings come in many different styles. There are two grease fittings that are very common. These are the 1/4″-28 thread and the 1/8″ NPT thread. However, there are other less common grease fitting threads in use.

What threads are used on grease Zerks?

SAE‑LT (Society of Automotive Engineers) threads possess SAE pipe thread dimension of 1/4″‑28 taper. Grease zerk fittings in the automotive industry as well as many other industrial machines and standard duty applications use SAE‑LT threads.

What thread is a standard grease fitting?

Grease fittings come in many different styles. There are two grease fittings that are very common. These are the 1/4″-28 thread and the 1/8″ NPT thread. However, there are other less common grease fitting threads in use.

What is PTF thread?

Pipe Threads (PTF) are larger in diameter than most UNF or SAE-LT threads and also provide additional strength. PTF threads have a taper like SAE-LT threads to provide a leakproof installation. These threads are designated by nominal pipe diameter.

What kind of thread is used for grease fittings?

There are two grease fittings that are very common. These are the 1/4″-28 thread and the 1/8″ NPT thread. However, there are other less common grease fitting threads in use.

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Where can I get a grease fitting thread gauge?

Grease fitting thread gauges are available from industrial equipment suppliers for around $50. Although convenient, you can identify your grease fitting thread without spending the money on this specialty tool.

What should be included in a caterpillar machine Handbook?

This Handbook is intended as an aid which, when coupled with experience and a good knowledge of local conditions, can assist in estimating true machine performance. Many sections of the Handbook include tables or curves showing cycle times or hourly production fig- ures for Caterpillar machines under certain con- ditions.