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G.L. Huyett Grease Fitting CatalogG.L. Huyett has developed the most comprehensive guide to Grease Fittings (Zerks) and threads the world has ever known. Inside you'll find to scale illustrations of every fitting known to man, technical and educational information, complete part number cross-referencing, design standards, manufacturing guidelines, quality control, and more related to Imperial, Metric, Nonferrous, Heritage®, Alemite®, and Lincoln® fittings. You'll also find detailed specifications and examples of SAE-LT, PTF, and UNF Grease Fittings, Thread Forming and Drive Type, Special Use Fittings, Pressure Control, Flow Control, Connecting Parts, Grease Guns, and Accessories.

Reference Pages:
G.L. Huyett Thread design Guide
G.L. Huyett SAE J534 Grease Fittings
G.L. Huyett Heritage Grease Fittings
G.L. Huyett Euro Metric Grease Fittings
G.L. Huyett Vanguard Nonferrous Grease Fittings
G.L. Huyett Alemite Grease Fitting Offering
G.L. Huyett Aerospace Grease Fitting Offering
G.L. Huyett Lincoln Grease Fitting Offering
Automatic Installation Thread Forming Drive Grease Fittings
Special Use Flush Button Head Pin Type Grease Fittings
Flow Control Safety Vent Leak Proof Flow Stop Grease Fittings
Pressure Control Vent Breather Relief Vent Grease Fittings
Connecting Parts Adapters Elbows extensions bushings
Grease Guns and Accessories
O-Rings
Pipe Plugs
Taper Threads
Taper threads run diagonal to mating material.


Grease Fittings
Grease Fittings
Parallel Threads
Parallel threads run parallel to mating material.


Grease Fittings
Grease Fittings
Bushing
Bushings are threaded on both the inside and outside and are used for joining parts with different diameters together.


Grease Fittings Bushings
Connecting Parts
Extension
This part is used to extend a grease fitting to a more accessible service area using the same thread pitch.


Grease Fittings Extensions
Connecting Parts
Button Head Fittings
Button Head fittings are designed to withstand repetitive abuse from harsh environments.


Button Head
Special Use Grease Fittings
Flush Type Fittings
Flush Type Fittings are ideal for applications with hard to lubricate areas and/or in low clearance areas.


Flush Type
Special Use Grease Fittings
Button Head: Plunger Check
Fittings with plunger checks are more tolerant of high back pressures than those with ball checks and allow larger volumes of lubricant to flow into the assembly.


Button Head
Special Use Grease Fittings
Button Head: Ball Check
Fittings with ball checks are cost-effective and still provide adequate back pressure protection in most applications.


Button Head
Special Use Grease Fittings