UNF Threads

United Fine Straight threads (UNF) are parallel, and are like the threads on a machine screw or bolt. They require a tapped hole for installation. Most commonly used on trucks, cars, and industrial machines. 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.

 
 

 

Zinc Dichromate Plated Equivalents
GF&D Part Numbers        
Premium # Standard # House # Description Alemite Umeta Lincoln
201792 GFD1792 G1792 1/4 x 28 UNF Straight 1792-B 5546106 5042
201711 GFD1711 NA 5/16 x 24 UNF Straight 1711-B 1100938 5061
201710 GFD1710 NA 3/8 x 24 UNF Straight 1710-B 1101139 5062
312245 NA NA 5/16 x 24 UNF 45' Angle - 1200938 -
312267 NA NA 5/16 x 24 UNF 67' Angle - 1400938 -
312290 NA NA 5/16 x 24 UNF 90' Angle - 1300938 -
313645 NA NA 3/8 x 24 UNF 45' Angle - 1201139 -
313667 NA NA 3/8 x 24 UNF 67' Angle - 1401139 -
313690 NA NA 3/8 x 24 UNF 90' Angle - 1301139 -

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