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Taper Thread Grease Fittings

Taper Thread Grease Fittings are used on cars, trucks and many types of industrial machinery. It is recommended that SAE-LT taper threads (Society of Automotive Engineers Lubrication Threads) be installed into straight holes with a 1/4''-28 UNF-3B straight-threaded hole. The included angle of the thread for a 1/4"-28 taper thread grease zerk is 60º. Taper thread grease fittings include a dirt-excluding ball check. Taper thread grease fittings are also referred to as taper thread zerk fittings, taper thread grease zerks, or a taper thread zerk.

Several sizes available in both Stainless Steel and Monel.


*1/4"-28 TAPER THREAD GREASE FITTINGS 1/4"-28 TAPER THREAD GREASE FITTINGS * 1/4"-28 TAPER THREAD GREASE FITTINGS**
SAE Number	Grease Fitting Description	FIG	A	B	X	Alemite #	Lincoln #
H-100	1/4"-28 SAE STRAIGHT	1	35/64"	3/16"	5/16"	1641-B	5010
H-100-RLA	1/4"-28 SAE LONG THREAD	4	11/16"	23/64"	5/16"	1652-B	5013
H-100-LMA	1/4"-28 SAE MEDIUM LONG	4	31/32"	5/8"	5/16"	1680-B	5014
H-100-LA	1/4"-28 SAE LONG	4	1-1/8"	25/32"	5/16"	1698-B	5017
H-100-LLA	1/4"-28 STRAIGHT VERY LONG	4	1-5/8"	1"	5/16"	3014-B	N/A
H-145	1/4"-28 SAE 45 DEGREE	2	27/32"	7/32"	3/8"	1637-B1	5210
H-165	1/4"-28 SAE 65 DEGREE	2	3/4"	7/32"	3/8"	N/A	5311
H-165-RL	1/4"-28 65° LONG THREAD	2	13/16"	19/64"	3/8"	3010-B1	700396
H-190-A	1/4"-28 SAE 90 DEGREE	3	3/4"	7/32"	3/8"	1911-B1	5410

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Taper Thread Grease Fittings

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