Grease Fittings

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1/8" PTF Fittings
Part Number Style Hex Overall Shank
1644 Straight 7/16 9/16 15/64
1610 Straight 7/16 11/16 19/64
1607 Straight 7/16 1-1/4 25/32
1669 Straight 7/16 1-3/4 1-17/64
1684 Straight 3/8 2-5/8 2-3/16
1618 Straight 1/2 1 9/32
1958 Straight 7/16 31/32 1/4
1611 30 7/16 29/32 19/64
1638 30 7/16 2-3/32 1-1/4
1688 45 7/16 57/64
1620 45 7/16 1-1/8
1612 65 7/16 27/32
1623 65 7/16 1-7/32
1649 65 3/8 2-3/4
1613 90 7/16 27/32
1606 90 7/16 1-13/16
369599 Straight 7/16 2-5/8
369608 65 7/16 29/32
36957 Double 70 1/2 27/32
Alemite 1/8" PTF Fittings are used on industrial machines and heavy equipment
1/4-28" and 1/8" Thread Forming Fittings
Part Number Style Hex Hole Size (recommended)
3038 Straight 5/16 .230 - .235
3053 45 3/8 .230 - .235
3054 90 3/8 .230 - .235
1720 Straight 7/16 .373 - .380
1723 90 7/16 .373 - .380
1724 45 7/16 .373 - .380
369582 Straight 9/32 .230 - .235
Alemite Thread Forming Fittings have special tapered drive threads which reshape the material in an untapped hole to provide a leak proof 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.
1/4-28" Taper Thread Fittings
Part Number Style Hex Overall Shank
1641 Straight 5/16 35/64 3/16
1652 Straight 5/16 11/16 23/64
1680 Straight 5/16 31/32 5/8
1698 Straight 5/16 1-1/8 25/32
3014 Straight 5/16 1-5/8 1
1637 45° 3/8 13/16 13/64
3010 65° 3/8 25/32 19/64
1911 90° 3/8 3/4 13/64
Alemite 1/4"-28 Taper Thread Fittings are used on most cars and trucks, as well as 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", to ensure 75% minimum thread height
1/4-28" PTF Fittings
Part Number Style Hex Overall Shank
1627 Straight 9/16 7/8 27/64
1629 67.5 9/16 31/32 11/32
Alemite 1/4" PTF Fittings are widely used for larger bearings on farm machinery and heavy industrial equipment. Recommended for heavy lubricants in cold weather.

Disclaimer: The dimensions listed are for reference only. Sizes not listed may be available off the shelf or can be manufactured to customer requirements.