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 Fittings MS Fittings NAS Fittings Assortment BACF Grease Fittings Brass British BSF British BSP British BSPP British BSPT Buttonhead Grease Fittings Drive Grease Fittings Grease Fittings Feedline Flush Grease Fittings Hydraulic Grease Fittings Junction Block Leakproof Metric Grease Fittings Monel Grease Fittings Pin Type Grease Fittings Relief Grease Fittings Rivet Grease Fittings Safety Vents Self Threading Grease Fittings Shut-off Special Thread Stainless Accessories Extensions Metric-English Adapters Elbows 45° - 90° Plugs Bushings Lock Nut Male to Female Adapters Male to Male Adapters Female to Female Adapters Couplers Grease Guns Swivels Hoses Plastic Caps Tools