Upchurch / IDEX Super Flangeless™ Fittings provide the highest pressure holding capability in a flat-bottom fitting system that we offer. Our unique design eliminates loosening of fittings due to tubing twist and holds tight even through vibration. Our high pressure fittings are excellent for tubing assemblies and those times when connections need to be broken frequently.
Upchurch Super Flangeless Nuts and Fittings

Item Name | Product Image | Price |
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Upchurch Scientific Super Flangeless Nut for 1/16 inch or 1/32 inch OD Tubing, 1/4-28 Flat Bottom, Standard Knurl, PFA, Natural, 10/pk - P-246XSuper Flangeless™ Nut for 1/16” or 1/32” OD Tubing, 1/4-28 Flat Bottom, Standard Knurl, PFA, Natural, 10 per pack Part Number: P-246X Categories: Fittings, Flat-Bottom Fittings, Fluidic Connections, Super Flangeless Fittings This... |
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£22.14![]() |
Upchurch Scientific Super Flangeless Nut for 1/16 inch or 1/32 inch OD Tubing, 1/4-28 Flat Bottom, Standard Knurl, PFA, Natural, Single - P-246Super Flangeless™ Nut for 1/16” or 1/32” OD Tubing, 1/4-28 Flat Bottom, Standard Knurl, PFA, Natural, Single Part Number: P-246 Categories: Fittings, Flat-Bottom Fittings, Fluidic Connections, Super Flangeless Fittings This... |
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£2.39![]() Min: 25 |
Upchurch Scientific Super Flangeless Nut for 1/16 inch or 1/32 inch OD Tubing, 1/4-28 Flat Bottom, Standard Knurl, PPS, Natural, 10/pk - P-281XSuper Flangeless™ Nut for 1/16” or 1/32” OD Tubing, 1/4-28 Flat Bottom, Standard Knurl, PPS, Natural, 10 per pack Part Number: P-281X Categories: Fittings, Flat-Bottom Fittings, Fluidic Connections, Super Flangeless Fittings This... |
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£28.35![]() |
Upchurch Scientific Super Flangeless Nut for 1/16 inch or 1/32 inch OD Tubing, 1/4-28 Flat Bottom, Standard Knurl, PPS, Natural, 100/pk - P-281CSuper Flangeless™ Nut for 1/16” or 1/32” OD Tubing, 1/4-28 Flat Bottom, Standard Knurl, PPS, Natural, 100 per pack Part Number: P-281C Categories: Fittings, Flat-Bottom Fittings, Fluidic Connections, Super Flangeless Fittings... |
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Live chat below or contact us for latest price. ... more info |
Upchurch Scientific Super Flangeless Nut for 1/16 inch or 1/32 inch OD Tubing, 1/4-28 Flat Bottom, Standard Knurl, PPS, Natural, Single - P-281Super Flangeless™ Nut for 1/16” or 1/32” OD Tubing, 1/4-28 Flat Bottom, Standard Knurl, PPS, Natural, Single Part Number: P-281 Categories: Fittings, Flat-Bottom Fittings, Fluidic Connections, Super Flangeless Fittings This... |
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£3.02![]() |
Upchurch Scientific Super Flangeless Nut for 1/16 inch or 1/32 inch OD Tubing, Short, 1/4-28 Flat Bottom, 1/4 inch Hex, Stainless Steel, 10/Pk - LT-105XSuper Flangeless™/LiteTouch®, Stainless Steel Nut, 1/4-28 Flat-Bottom, for 1/16" or 1-32" OD - 10 per pack Product Number: LT-105X Categories: Fittings, Flat-Bottom Fittings, Fluidic Connections, Super Flangeless Fittings This... |
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£334.84![]() |
Upchurch Scientific Super Flangeless Nut for 1/16 inch or 1/32 inch OD Tubing, Short, 1/4-28 Flat Bottom, 1/4 inch Hex, Stainless Steel, Single - LT-105Super Flangeless™/LiteTouch®, Stainless Steel Nut, 1/4-28 Flat-Bottom, for 1/16" or 1-32" OD - Single pack Product Number: LT-105 Categories: Fittings, Flat-Bottom Fittings, Fluidic Connections, Super Flangeless Fittings... |
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£33.24![]() |
Upchurch Scientific Super Flangeless Nut for 1/16 inch or 1/32 inch OD Tubing, Short, 1/4-28 Flat Bottom, Headless Knurl, PEEK, Natural, 10/pk - P-232XSuper Flangeless ™ Nut for 1/16” or 1/32” OD Tubing, Short, 1/4-28 Flat Bottom, Headless Knurl, PEEK, Natural, 10 per pack Part Number: P-232X Categories: Fittings, Flat-Bottom Fittings, Fluidic Connections, Super... |
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£33.66![]() |
Upchurch Scientific Super Flangeless Nut for 1/16 inch or 1/32 inch OD Tubing, Short, 1/4-28 Flat Bottom, Headless Knurl, PEEK, Natural, 100/pk - P-232CSuper Flangeless ™ Nut for 1/16” or 1/32” OD Tubing, Short, 1/4-28 Flat Bottom, Headless Knurl, PEEK, Natural, 100 per pack Part Number: P-232C Categories: Fittings, Flat-Bottom Fittings, Fluidic Connections, Super... |
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Live chat below or contact us for latest price. ... more info |
Upchurch Scientific Super Flangeless Nut for 1/16 inch or 1/32 inch OD Tubing, Short, 1/4-28 Flat Bottom, Headless Knurl, PEEK, Natural, Single - P-232Super Flangeless ™ Nut for 1/16” or 1/32” OD Tubing, Short, 1/4-28 Flat Bottom, Headless Knurl, PEEK, Natural, Single Part Number: P-232 Categories: Fittings, Flat-Bottom Fittings, Fluidic Connections, Super Flangeless... |
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£3.61![]() |
Upchurch Scientific Super Flangeless Nut for 1/16 inch-1/32 inch OD Tubing, 1/4-28 Flat Bottom, Standard Knurl, PEEK, Natural, Single - P-251Super Flangeless™ Nut for 1/16" - 1/32" OD Tubing, 1/4-28 Flat Bottom, Standard Knurl, PEEK, Natural, Single Part Number: P-251 Categories: Fittings, Flat-Bottom Fittings, Fluidic Connections, Super Flangeless Fittings This... |
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Live chat below or contact us for latest price. ... more infoMin: 25 |
Upchurch Scientific Super Flangeless Nut for 1/16-1/32 inch OD Tubing, Short, 1/4-28 Flat-Bottom, Standard Knurl, PEEK, Black, 100/pk - LT-115BLKCSuper Flangeless™ Nut for 1/16" - 1/32" OD Tubing, Short, 1/4-28 Flat-Bottom, Standard Knurl, PEEK, Black, 100 per pack Part Number: LT-115BLKC Categories: Fittings, Flat-Bottom Fittings, Fluidic Connections, Super Flangeless... |
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Live chat below or contact us for latest price. ... more info |
Upchurch Scientific Super Flangeless Nut for 1/16-1/32 inch OD Tubing, Short, 1/4-28 Flat-Bottom, Standard Knurl, PEEK, Black, Single - LT-115BLKSuper Flangeless™ Nut for 1/16" - 1/32" OD Tubing, Short, 1/4-28 Flat-Bottom, Standard Knurl, PEEK, Black, Single Part Number: LT-115BLK Categories: Fittings, Flat-Bottom Fittings, Fluidic Connections, Super Flangeless Fittings... |
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£3.66![]() |
Upchurch Scientific Super Flangeless Nut for 1/16-1/32 inch OD Tubing, Short, 1/4-28 Flat-Bottom, Standard Knurl, PEEK, Blue, Single - LT-115BSuper Flangeless™ Nut for 1/16" - 1/32" OD Tubing, Short, 1/4-28 Flat-Bottom, Standard Knurl, PEEK, Blue, Single Part Number: LT-115B Categories: Fittings, Flat-Bottom Fittings, Fluidic Connections, Super Flangeless Fittings These... |
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£6.78![]() Min: 25 |
Upchurch Scientific Super Flangeless Nut for 1/16-1/32 inch OD Tubing, Short, 1/4-28 Flat-Bottom, Standard Knurl, PEEK, Green, Single - LT-115GSuper Flangeless™ Nut for 1/16" - 1/32" OD Tubing, Short, 1/4-28 Flat-Bottom, Standard Knurl, PEEK, Green, Single Part Number: LT-115G Categories: Fittings, Flat-Bottom Fittings, Fluidic Connections, Super Flangeless Fittings... |
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£6.73![]() Min: 25 |
Upchurch Scientific Super Flangeless Nut for 1/16-1/32 inch OD Tubing, Short, 1/4-28 Flat-Bottom, Standard Knurl, PEEK, Grey, 100/Pk- LT-115GYCSuper Flangeless™ Nut for 1/16" - 1/32" OD Tubing, Short, 1/4-28 Flat-Bottom, Standard Knurl, PEEK, Grey/Gray, 100 per pack Part Number: LT-115BLK Categories: Fittings, Flat-Bottom Fittings, Fluidic Connections, Super Flangeless... |
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Live chat below or contact us for latest price. ... more info |
Upchurch Scientific Super Flangeless Nut for 1/16-1/32 inch OD Tubing, Short, 1/4-28 Flat-Bottom, Standard Knurl, PEEK, Grey, Single - LT-115GYSuper Flangeless™ Nut for 1/16" - 1/32" OD Tubing, Short, 1/4-28 Flat-Bottom, Standard Knurl, PEEK, Gray/Grey, Single Part Number: LT-115GY Categories: Fittings, Flat-Bottom Fittings, Fluidic Connections, Super Flangeless Fittings... |
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£3.66![]() |
Upchurch Scientific Super Flangeless Nut for 1/16-1/32 inch OD Tubing, Short, 1/4-28 Flat-Bottom, Standard Knurl, PEEK, Natural, 10/pk - LT-115XSuper Flangeless™ Nut for 1/16" - 1/32" OD Tubing, Short, 1/4-28 Flat-Bottom, Standard Knurl, PEEK, Natural, 10 per pack Part Number: LT-115X Categories: Fittings, Flat-Bottom Fittings, Fluidic Connections, Super Flangeless... |
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£34.18![]() |
Upchurch Scientific Super Flangeless Nut for 1/16-1/32 inch OD Tubing, Short, 1/4-28 Flat-Bottom, Standard Knurl, PEEK, Natural, 100/pk - LT-115CSuper Flangeless™ Nut for 1/16" - 1/32" OD Tubing, Short, 1/4-28 Flat-Bottom, Standard Knurl, PEEK, Natural, 100 per pack Part Number: LT-115C Categories: Fittings, Flat-Bottom Fittings, Fluidic Connections, Super Flangeless... |
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£338.44![]() |
Upchurch Scientific Super Flangeless Nut for 1/16-1/32 inch OD Tubing, Short, 1/4-28 Flat-Bottom, Standard Knurl, PEEK, Natural, Single - LT-115Super Flangeless™ Nut for 1/16" - 1/32" OD Tubing, Short, 1/4-28 Flat-Bottom, Standard Knurl, PEEK, Natural, Single Part Number: LT-115 Categories: Fittings, Flat-Bottom Fittings, Fluidic Connections, Super Flangeless Fittings... |
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£3.66![]() |