FCH News

#4 Self-Sealing Screws

Self-Sealing Screws are usually special-purpose machine screws with a groove under the head of the screw, which, in association with a mating O-ring, forms a seal when the screw is tightened.

105 results, (click on any line for more information)

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SupplierLocTypeMaterialFinishSizeDescriptionQty 
TSFTXSelf-Sealing Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 1/8seal screw silicone o-ring stainless steel phillips pan head 4-40 x 1/85
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HayesCASelf-Sealing Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 1/84-40 x 1/8 p-pan seel scr sil-oring 18-8ss bk/ox67
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HayesCASelf-Sealing Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 1/84-40 x 1/8 p-pan seel scr sil-oring 18-8ss500
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YANKEENHSelf-Sealing ScrewSteelPlain#4-40 x 3/16phil pan m/s seal- stn stl200
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EndriesWISelf-Sealing Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 3/164-40 x 3/16 phillips flat 100dg m/s 18-8ss w/buna o-ring rohs31300
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FMPMASelf-Sealing Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 3/16phillips pan seal/s with silicon o-ring100
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OlanderCASelf-Sealing Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 3/164-40 x 3/16 ph pan seelskrew sst rohs ()655
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AbabaCASelf-Sealing ScrewSteelPlain#4-40 x 1/44-40 x 1/4 p-pan mach screw sealing w/viton o ring500
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OneMonroeNCSelf-Sealing Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 1/44-40 x 1/4 slotted pan hd seal screw t-s multi 18-8ss300
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YANKEENHSelf-Sealing Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 1/4phillips pan seal- 18-8 s/s w/buna-n o-ring400
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YANKEENHSelf-Sealing Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Black Oxide#4-40 x 1/4phillips pan seal- 18-8 s/s w/silicone (red/orng) o-ring3910
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ACFCASelf-Sealing ScrewSteelPlain#4-40 x 1/4screw machine pan cross recessed o ring self sealing MS3212-1890
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ACFCASelf-Sealing Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Passivated#4-40 x 1/44-40x1/4 s/s phil pan epr o-ring seal screw passivate100
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OlanderCASelf-Sealing Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 1/44-40 x 1/4 ph pan seelskrew sst rohs ()1586
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NAPPCOTXSelf-Sealing Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 1/4phil pan seal screw s/s 18-8 4-40x1/4 387
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EndriesWISelf-Sealing Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 1/44-40x1/4 phillips pan head seal screw stainless 18-8 silicone o-ring31
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HayesCASelf-Sealing Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 1/4ms3212-1 4-40 x 1/4 phil pan seel screw 18-847
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HayesCASelf-Sealing Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 1/44-40 x 1/4 p-pan seel scr sil-oring 18-8ss bk/ox60
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NAPPCOTXSelf-Sealing Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 1/4flat slotted seal screw s/s 18-8 4-40x1/4 432
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CenturyFLSelf-Sealing ScrewBlack Oxide#4-40 x 1/44-40 x 1/4 pan head machine screw 4-40 x 1/4 machine pan head screw assembled w/silicone o-ring black ox iaw mil-c-13924a cl2 l3 technologies l3 technologies50
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OlanderCASelf-Sealing Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 1/44-40 x 1/4 slot pan hd seelskrew sst ()332
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CenturyFLSelf-Sealing Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 1/44-40 x 1/4 phillips pan hd sealscrew 18-8100
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Global FaTXSelf-Sealing Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Black Oxide#4-40 x 1/4#4-40x1/4 ss phil/pan sealscrew with extra-light/vibratite black/oxide3500
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YANKEENHSelf-Sealing Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 5/164-40 x 5/16 phillips pan machine seal-screw stainless steel197
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YANKEENHSelf-Sealing Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 5/164-40 x 5/16 phil pan m/s seal-screw s/s1000
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CenturyFLSelf-Sealing ScrewSteelPlain#4-40 x .313ms3212-2 603
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EndriesWISelf-Sealing Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Black Oxide#4-40 x 5/164-40x5/16 phillips100 degree flat seel screw 18-8 blk ox silicon o-ring679
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EndriesWISelf-Sealing Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 5/164-40x5/16 phillips pan head seal screw stainless 18-8 silicone o-ring1714
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Future FastenerTXSelf-Sealing Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 5/164-40 x 5/16 slotted pan seal screw ss100
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DeltaTXSelf-Sealing Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 5/16phil pan seal screw 18-8 st #4-40 x 5/16113
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HayesCASelf-Sealing ScrewSteelPlain#4-40 x 5/16ms3212-2 4-40 x 5/16 phil pan seel screw 18-891
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OlanderCASelf-Sealing Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 5/164-40 x 5/16 ph pan seelskrew sst rohs ()195
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OlanderCASelf-Sealing ScrewSteelPlain#4-40 x 5/164-40 x 5/16 phil flat 100 deg seelskrew ()716
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AIHAZSelf-Sealing Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 5/164-40 x 5/16 sealing phil pan m/s s/s pass 304ss MS3213-238
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OlanderCASelf-Sealing ScrewSteelPlain#4-40 x 5/164-40 x 5/16 phil flat 100 deg seelskrew ()64
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YANKEENHSelf-Sealing Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 3/8military spec 4-40x3/8 phillips pan head sealing screw (silicone o ring) 18-8 304 steel25
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YANKEENHSelf-Sealing Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 3/84-40 x 3/8 phil pan m/s seal-screw stainless steel5
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OneMonroeNCSelf-Sealing Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 3/84-40 x 3/8 phillips flat hd seal sc t-sfr efi 18-8ss17
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YANKEENHSelf-Sealing ScrewSteelPlain#4-40 x 3/8phil pan m/s seal- stn stl black50
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OlanderCASelf-Sealing Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 3/84-40 x 3/8 ph pan seelskrew sst rohs ()350
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NAPPCOTXSelf-Sealing Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 3/8phil pan seal screw s/s 18-8 4-40x3/8 24
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EndriesWISelf-Sealing Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Black Oxide#4-40 x 3/84-40x3/8 phillips100 d eg countersink head seel screw 18-8 black ox silicon o-ring2518
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EndriesWISelf-Sealing Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 3/84-40x3/8 phillips100 d eg countersink head seel screw 18-8 silicon o-ring800
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SJS ProdCASelf-Sealing Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 3/8440 x 3/8 p/h phil m/s ss seal screw
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SJS ProdCASelf-Sealing Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 3/8440 x 3/8 p/h phil m/s ss seal screw
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DeltaTXSelf-Sealing Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 3/8phil pan seal screw 18-8 sst #4-40 x 3/8600
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DeltaTXSelf-Sealing Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 3/8slotted pan seal screw 18-8 sst #4-40 x 3/8300
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HayesCASelf-Sealing ScrewSteelPlain#4-40 x 3/8ms3212-3 4-40 x 3/8 phil pan seel screw 18-873
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HayesCASelf-Sealing Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 3/84-40 x 3/8 p-pan seel scr sil-oring 18-8ss bk/ox820
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HayesCASelf-Sealing Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 3/84-40 x 3/8 s-pan seel scr sil-oring 18-8ss100
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HayesCASelf-Sealing Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 3/84-40 x 3/8 p-100 flat seel scr sil-oring 18-8ss50
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NAPPCOTXSelf-Sealing Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 3/8flat slotted seal screw s/s 18-8 4-40x3/8 700
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NAPPCOTXSelf-Sealing Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 3/8phil flat seal sc s/s 18-8 4-40x3/8 667
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OlanderCASelf-Sealing Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 3/84-40 x 3/8 slot pan hd seelskrew sst ()90
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CenturyFLSelf-Sealing ScrewSteelPlain#4-40 x 3/8ms3212-3 nasm3212-3498
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CenturyFLSelf-Sealing Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 3/8apm hexseal r4-40x3/8-2701 4-40 x 3/8 phillips pan seal screw ss266
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OlanderCASelf-Sealing ScrewSteelPlain#4-40 x 3/84-40 x 3/8 phil flat 100 deg seelskrew ()1094
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BossardAZSelf-Sealing ScrewSteelPlainscrew-4-40x3/8 phillips pan head ms3213-3100
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OlanderCASelf-Sealing Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 3/84-40 x 3/8 ph pan seelskrew sst rohs ()571
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OlanderCASelf-Sealing ScrewSteelBlack Oxide#4-40 x .404-40 x .40 ph pan seelskrewsst blk ()500
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YANKEENHSelf-Sealing Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 7/16military spec 4-40x7/16 phillips pan head sealing screw (silicone o ring) 18-8 304 steel25
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YANKEENHSelf-Sealing Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 7/164-40 x 7/16 phil pan m/s seal-screw s/s352
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DeltaTXSelf-Sealing Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 7/16slotted pan seal screw 18-8 st #4-40 x 7/1659
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MAINSOURCNHSelf-Sealing Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 7/16phil pan sealing sc 18-8 ss blk2907
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NAPPCOTXSelf-Sealing Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 7/16pan slotted seal screw s/s 18-8 4-40x7/16 138
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DeltaTXSelf-Sealing Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 7/16phil pan seal screw 18-8 st #4-40x7/16 (WITH SILICONE O-RING)120
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OneMonroeNCSelf-Sealing Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 1/24-40 x 1/2 phillips flat hd seal sc t-sfr multi 18-8ss250
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OneMonroeNCSelf-Sealing Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 1/24-40 x 1/2 ph pan seal screw t-r viton 18-8ss bkps15
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HayesCASelf-Sealing Screw316, 317, A4 StainlessPlain#4-40 x 1/24-40x1/2 phil pan seel screw w/buna oring 316ss24
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YANKEENHSelf-Sealing Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Black Oxide#4-40 x 1/2phillips pan sealing 18-8 s/s w/ buna-n oring82
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Future FastenerTXSelf-Sealing Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 1/24-40x1/2 phil pan seal screw ss633
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Bryce FastenerAZSelf-Sealing Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 1/24-40x1/2 button head seal rex ss{0gp6-198.2
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Irwin IndOntSelf-Sealing Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 1/24-40 x 1/2 ss 18-8 phil pan seelscrew with silicone oring183
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NAPPCOTXSelf-Sealing Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 1/2pan slotted seal screw s/s 18-8 4-40x1/2 383
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EndriesWISelf-Sealing Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 1/24-40x1/2 phillips pan head seal screw 18-8 buna-n o-ring4929
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EndriesWISelf-Sealing Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 1/24-40x1/2 phillips pan head seal screw stainless 18-82856
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DeltaTXSelf-Sealing Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 1/2phil pan seal screw 18-8 sst #4-40 x 1/2307
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DeltaTXSelf-Sealing Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 1/2slotted pan seal screw 18-8 sst #4-40 x 1/261
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HayesCASelf-Sealing ScrewSteelPlain#4-40 x 1/2ms3212-5 4-40 x 1/2 phil pan seel screw 18-82056
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HayesCASelf-Sealing Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 1/24-40 x 1/2 p-pan seel scr sil-oring 18-8ss bk/ox2185
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HayesCASelf-Sealing Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 1/24-40 x 1/2 p-100 flat seel scr sil-oring 18-8ss100
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NAPPCOTXSelf-Sealing Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 1/2flat slotted seal screw s/s 18-8 4-40x1/2 1850
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AIHAZSelf-Sealing ScrewSteelPlain#4-40 x 1/2MS3212-556
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OlanderCASelf-Sealing ScrewSteelPlain#4-40 x 1/24-40 x 1/2 phil flat 100 deg seelskrew ()54
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CenturyFLSelf-Sealing ScrewPlain#4-40 x 1/2apm # s4-40x1/2 2615 seal screw 4-40 x 1/2 slotten pan head seal screw w/fluoro silicone o-ring apm hexseal25
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OlanderCASelf-Sealing ScrewSteelPlain#4-40 x 1/24-40 x 1/2 phil flat 100 deg seelskrew ()749
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CenturyFLSelf-Sealing Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 1/24-40 x 1/2 phillips pan seal screw viton o ring 18/8500
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CenturyFLSelf-Sealing ScrewPlain#4-40 x 1/2apm r4-40x1/2 2701-tp 4-40 x 1/2 phillips pam head seal screw silicone o-ring w/nylon patch200
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DeltaTXSelf-Sealing Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 9/16phil pan seal screw 18-8 st #4-40 x 9/161000
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DeltaTXSelf-Sealing Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 9/16slotted pan seal screw 18-8 st #4-40 x 9/16100
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MAINSOURCNHSelf-Sealing Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 5/84-40x5/8 phil pan sealing sc patch 18-8 ss100
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DeltaTXSelf-Sealing Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 5/8slotted pan seal screw 18-8 sst #4-40 x 5/8258
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HayesCASelf-Sealing Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 5/84-40 x 5/8 p-pan seel scr sil-oring 18-8ss50
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NAPPCOTXSelf-Sealing Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 5/8phil flat seal sc s/s 18-8 4-40x5/8 335
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NAPPCOTXSelf-Sealing Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 5/8pan slotted seal screw s/s 18-8 4-40x5/8 189
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OneMonroeNCSelf-Sealing Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 3/44-40 x 3/4 ph pan seal screw t-r viton 18-8ss bkps15
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DeltaTXSelf-Sealing Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 3/4slotted pan seal screw 18-8 sst #4-40 x 3/4359
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FMPMASelf-Sealing Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 3/4phillips pan seal/s with silicon o-ring1400
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HayesCASelf-Sealing Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 3/44-40 x 3/4 p-pan seel scr sil-oring 18-8ss50
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OlanderCASelf-Sealing Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 3/44-40 x 3/4 ph pan seelskrew sst rohs ()300
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GlobalCASelf-Sealing Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 7/84-40x7/8 phil pan m/s seal screw 18-8 ss pa silicone o-ring533
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CenturyFLSelf-Sealing Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 14-40 x 1 torx pan seal screw viton o-ring 18-8 stainless1000
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OlanderCASelf-Sealing Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 1 1/44-40 x 1 1/4 ph pan seelskrew sst rohs ()50
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MAINSOURCNHSelf-Sealing Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 1 5/8phil pan sealing sc 18-8 ss blk122
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MAINSOURCNHSelf-Sealing Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 1 7/8phil pan sealing sc 18-8 ss blk502
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