Self Threading Grease Fittings
These fittings have special tapered drive threads to reshape the material in an untapped hole to provide a leak proof seal. They are most effectively installed by spinning into the untapped hole or by driving straight into the untapped hole. They can be replaced by a standard threaded fitting or another thread forming fitting.

MB Part # Description
Angle
Height
Shank
Hex
Hole Size
Alemite #
Lincoln #
MB1641-st 1/4-28" Special Taper
Str.
9/16"
7/32"
5/16"
.230-.235
3038-B
205010
MB1637-st 1/4-28" Special Taper
45°
13/16"
13/64"
3/8"
.230-.235
3053-B
205210
MB1911-st 1/4-28" Special Taper
90°
23/32"
13/64"
3/8"
.230-.235
3054-B
205410
MB1720 1/8" Special Taper
Str.
39/64"
13/64"
7/16"
.373-.380
1720-B
205000
MB1724 1/8" Special Taper
45°
53/64"
13/64"
7/16"
.373-.380
1724-B
205200
MB1722 1/8" Special Taper
65°
49/64"
13/64"
7/16"
.373-.380
1722-B
205300
MB1723 1/8" Special Taper
90°
49/64"
9/64"
7/16"
.373-.380
1723-B
205400
MB369584 1/4-28" Special Taper
Str.
31/32"
13/64"
7/16"
.230-.235
369584
n/a
MB369582 1/4-28" Special Taper
Str.
39/64"
9/64"
7/16"
.230-.235
369582
n/a
MB369607 1/4-28" Special Taper
Str.
9/16"
13/64"
7/16"
.230-.235
369607
n/a
MB369579 1/8-27" Special Taper
Str.
39/64"
13/64"
7/16"
.373-.380
369579
n/a
AS FittingsMS FittingsNAS FittingsAssortmentBACF Grease FittingsBrassBritish BSFBritish BSPBritish BSPPBritish BSPTButtonhead Grease FittingsDrive Grease FittingsGrease Fittings FeedlineFlush Grease FittingsHydraulic Grease FittingsJunction BlockLeakproofMetric Grease FittingsMonel Grease FittingsPin Type Grease FittingsRelief Grease FittingsRivet Grease FittingsSafety VentsSelf Threading Grease FittingsShut-off Special ThreadStainlessAccessoriesExtensionsMetric-English AdaptersElbows 45° - 90°PlugsBushingsLock NutMale to Female AdaptersMale to Male AdaptersFemale to Female AdaptersCouplersGrease GunsSwivelsHosesPlastic CapsTools