1/4-28 SAE-LT

The 1/4-28 thread fitting is used on cars, light trucks, and industrial machinery. The SAE-LT thread conforms to the Society of Automotive Engineers Lubrication Threads specifications. Requires a tapped hole for installation. Maximum Pressure is 8,000 PSI. All zinc dichromate fittings minimum 96 hours to red rust. All zinc fittings case hardened to Vickers HV1 or 83 min Rockwell 15N. All stainless steel fittings are type 303 stainless.

 
 

 

Steel - Zinc Dichromate Plated

Equivalents
GF&D Part Numbers        
Premium # Standard # House # Description Alemite Umeta Lincoln
201641 GFD1641 G1641 1/4-28 Straight 1641-B 5546030 5010
201652 GFD1652 G1652 1/4-28 Straight 11/16" O/A 1652-B 5546032 5013
201680 GFD1680 G1680 1/4-28 Straight 15/16" O/A 1680-B 5546034 5014
1698 NA NA 1/4-28 Straight 1 1/8" O/A 1698-B 5546036 5017
211637 GFD1637 G1637 1/4-28 45' Angle 1637-B 5546040 5210
211636 GFD1637L NA 1/4-28 45' Angle Long 1636-B 5546043 5212
211665 GFD1665 NA 1/4-28 65' Angle 3010-B1 5546042 5311
211911 GFD1911 G1911 1/4-28 90' Angle 1911-B1 5546044 5410
211914 GFD1911L NA 1/4-28 90' Angle Long 1790 - 5412
 

Steel - Zinc Clear Plated

Equivalents
GF&D Part Numbers        
Premium # Standard # House # Description Alemite Umeta Lincoln
221641 GFD1641C NA 1/4-28 Straight 1641-B 5546030 5010
221652 GFD1652C NA 1/4-28 Straight 11/16" O/A 1652-B 5546032 5013
221680 GFD1680C NA 1/4-28 Straight 15/16" O/A 1680-B 5546034 5014
221698 NA NA 1/4-28 Straight 1 1/8" O/A 1698-B 5546036 5017
231637 GFD1637C NA 1/4-28 45' Angle 1637-B 5546040 5210
231636 GFD1637LC NA 1/4-28 45' Angle Long 1636-B 5546043 5212
231665 GFD1665C NA 1/4-28 65' Angle 3010-B1 5546042 5311
231911 GFD1911C NA 1/4-28 90' Angle 1911-B1 5546044 5410
 

Stainless Steel Fittings

Equivalents
GF&D Part Numbers        
Premium # Standard # House # Description Alemite Umeta Lincoln
808025 GFD1966S G1966S 1/4-28 Straight 1966-S 5546087 5010-9
812545 GFD1637S NA 1/4-28 45' Angle 1968-S 5546085 5210-9
812590 GFD1911S NA 1/4-28 90' Angle 1969-S 5546089 5410-9

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