1/4"-28 Taper Thread Fittings

Used on most cars and trucks and many industrial machines. It is recommended that SAE-LT taper threads be assembled into 1/4"-28 UNF, Class 3B, straight-threaded holes having a modified maximum minor diameter of 0.2151 in. to insure 75% minimum thread height.

FEATURES:

• Maximum pressure: 8,000 psi
• Exceeds 48-hour salt-spray test
• Dirt-excluding ball check
   

1/4"-28 Straight Thread Fittings

Used on most cars and trucks and many industrial machines.

FEATURES:

• Dirt-excluding ball check
• Maximum pressure: 8,000 psi
• Exceeds 48-hour salt-spray test
   

1/8" PTF Fittings

Used on many industrial machines and heavy equipment.

FEATURES:

• Dirt-excluding ball check
• Maximum Pressure: 8,000 psi
• Exceeds 48-hour salt-spray test
• 1958 has specialty cap providing a second seal for dust-proof applications
   

1/4" PTF Fittings

Widely used for larger bearings on heavy machinery. Recommended for use with heavy lubrications for cold weather applications.

FEATURES:

• Dirt-excluding ball check
• Maximum pressure: 8,000 psi
• Dry seal eliminates need for sealant
• Exceeds 48-hour salt-spray test
   

1/4"-28 and 1/8" Thread-Forming Fittings

Thread-forming fittings have special tapered drive threads to reshape the material in an untapped hole to provide a leakproof seal. They are most effectively installed by spinning into the untapped hole, but may be driven straight into the untapped hole. Thread-forming fittings can be replaced by any standard threaded fitting or by another thread-forming fitting.

FEATURES:

• Threads provide strong seal
• Exceeds 72-hour salt-spray test
• Maximum pressure: 8,000 psi
   

Drive Fittings

Used to avoid tapping costs for a wide variety of applications. Recommended for low- and medium-pressure applications only. Choose tool for straight-type drive fittings or tool for angle-type drive fittings.

FEATURES:

• Used for untapped holes
• Avoids tapping costs
• Serrated shank provides secure, lasting grip
• Simplifies replacement of damaged fittings in old or oversized holes

Metric Fittings

Taper metric thread.

FEATURE:

• Maximum pressure: 8,000 psi
   

British Standard Pipe Thread Fittings

BSP threads come in two types of threads: BSPP (British Standard Pipe Parallel) and BSPT (British Standard Pipe Taper). The BSPP requires a sealing ring and the BSPT achieves pressure tight joints by the threads alone. Alemite is happy to offer BSPT thread fittings.

Monel Fittings

Alemite Monel Fittings withstand the most severe marine and industrial corrosive environments. Monel is a nickel/copper alloy that is highly resistant to corrosion. All Monel fittings have a single notch on the hex for easy identification.

FEATURES:

• Monel fittings offer even greater corrosion resistance than stainless steel
• Fittings can withstand extreme temperatures ranging from sub-zero to 480°C (896°F)
• Ideal for use in harsh chemical environments and marine applications

Stainless Steel Fittings

Alemite Stainless Steel Fittings withstand severe marine and industrial corrosive environments. All stainless steel fittings have two notches for easy identification.

FEATURES:

• Stainless steel fittings offer greater corrosion resistance than traditional carbon steel
• Fittings can withstand extreme temperatures ranging from sub-zero to 480°C (896°F)
• Ideal for use in harsh chemical environments and marine applications
• Stainless steel fittings are comprised of Type 303 stainless for fitting bodies, Type 440 stainless for balls and Type 302 stainless for tempered springs
   

Standard Button Head Fittings

Use in rugged applications such as heavy machinery or construction/off-road equipment.

FEATURES:

• Head size helps to minimize breakage
• Helps to reduce dirt contamination
• Maximum pressure: 6,000 psi
   

Giant Button Head Fittings

Largest head fitting available for extreme applications.

FEATURES:

• Head size helps to minimize breakage
• Maximum pressure: 15,000 psi
• Check valve helps to reduce contamination
   

Relief Fittings

Use on gearbox housings and bearings (such as king pins, universal joints, etc.) where excessive lubrication pressure is not desirable.

FEATURES:

• Fittings open at pre-determined pressures as shown
• Fittings can be used with either grease or oil
• 321839 is a drive fitting (3/8" drill)
• 338382 is leakproof (1/8" PTF)
   

Flush Type Fittings

Use for applications where protruding fittings cannot be used, such as line shafting pulleys or revolving bearings.

FEATURES:

• Fittings sit flush
• Flush-mounting reduces potential for damage\
• Fittings can be installed in hard-to-reach areas
• 1814 is a drive-type oiler fitting for use with a standard oil can
   

Flush Type Fittings

Use for applications where protruding fittings cannot be used, such as line shafting pulleys or revolving bearings.

FEATURES:

• Fittings sit flush
• Flush-mounting reduces potential for damage
• Fittings can be installed in hard-to-reach areas\
• 1814 is a drive-type oiler fitting for use with a standard oil can
   

Hydraulic Shut-Off Fittings

Fittings positively shutoff at pressures specified, preventing over-lubrication and blowing out of bearing seals.

Leakproof Fittings

Leakproof fittings have a Buna-N seal instead of a ball check to provide a leakproof seal. To improve reliability of the check valve, keep input passages free of foreign particles. Redundancy of seal should be provided in critical applications where back pressure must be maintained.

FEATURES:

• Uses a Buna-N seal instead of a ball check to provide leakproof seal
• Use with light oils and other fluids up to 3,000 psi
• 1634 has a steel ball check and brass insert seats for grease, heavy and medium oils for up to 10,000 psi
• 1634-B has a steel ball check and brass insert seats and includes a dirt-excluding surface ball check up to 10,000 psi
   

Vents

Use with transmissions, differentials, speed reducers, axles, gear housings, etc. Fitting is placed above normal lubrication level to allow air to escape when internal pressures rise.

FEATURES:

• Vent opens at designated pressure
• Helps to prevent fluid leakage
• Special cap prevents water or dirt from entering
   

Breathers

Use with transmissions, differentials, speed reducers, axles, gear housings, etc. Breathers help to maintain proper pressures.

FEATURES:

• No airflow restrictions
• Breather with felt filters helps reduce dirt contamination
   

Special Thread Fittings

Special threads and sizes for special lubrication purposes. All have high-pressure ball check unless otherwise specified.

Rivet Fitting

Recommended for special applications where threaded or drive fittings cannot be used. Commonly used for king pin applications.

Assortments

A range of Alemite’s most popular fittings are available in convenient assortments and blister packages. Boxes and blister packages are ideal for display or for storage shelves.
 

Header Blocks

Hard-to-reach machine bearings requiring lubrication can be connected to central points by tubing or whip hose leading from the bearings to header blocks. Blocks come equipped with hydraulic fittings (1612-B) and are available for three or six bearings. Includes compression fitting connections for 1/4" tubing.