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1/2 inch length 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.
82 results, (click on any line for more information)
| Buy Self-Sealing Screws from one of our FCH Network Members | ||||||||
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| Supplier | Loc | Type | Material | Finish | Size | Description | Qty | |
| Future Fastener | TX | Self-Sealing Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4-40 x 1/2 | 4-40x1/2 phil pan seal screw ss | 633 |
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| Future Fastener | TX | Self-Sealing Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #10-32 x 1/2 | 10-32 x 1/2 phillips flat seal screw ss (with o ring) | 1010 |
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| MAINSOURC | NH | Self-Sealing Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #10-32 x 1/2 | phil pan sealing sc 18-8 ss | 800 |
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| MESAFAST | CA | Self-Sealing Screw | Steel | Zinc/Clear | #8 x 1/2 | hwh selfdrill w/sealing whsr zc | 6,500.0 |
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| Century | FL | Self-Sealing Screw | Steel | Plain | #4-40 x 1/2 | ms3213-5 | 1336 |
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| Century | FL | Self-Sealing Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4-40 x 1/2 | 4-40 x 1/2 phillips pan seal screw viton o ring 18/8 | 2500 |
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| YANKEE | NH | Self-Sealing Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Black Oxide | #4-40 x 1/2 | phillips pan sealing 18-8 s/s w/ buna-n oring | 82 |
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| YANKEE | NH | Self-Sealing Screw | Steel | Plain | #6-32 x 1/2 | phil pan m/s seal- stn stl black | 300 |
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| YANKEE | NH | Self-Sealing Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #10-32 x 1/2 | phillips pan seal- 18-8 304 black-oxide | 592 |
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| Century | FL | Self-Sealing Screw | Steel | Plain | #4-40 x 1/2 | apm hexseal r4-40 x 1/2 2701 phil pan (SEALING SCREW WITH SILICONE ORING 18-8 S/S DFARS) (SEALING SCREW WITH SILICONE ORING 18-8 S/S DFARS) | 218 |
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| Century | FL | Self-Sealing Screw | Steel | Plain | #6-32 x 1/2 | ms3212-15 | 88 |
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| Century | FL | Self-Sealing Screw | Steel | Plain | #6-32 x 1/2 | ms3213-15l | 15 |
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| Century | FL | Self-Sealing Screw | Steel | Plain | #4-40 x 1/2 | ms3212-5 | 39 |
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| Century | FL | Self-Sealing Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #2-56 x 1/2 | 2-56x1/2 phillips pan seal screw viton o ring 18-8 | 20 |
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| NAPPCO | TX | Self-Sealing Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4-40 x 1/2 | pan slotted seal screw s/s 18-8 4-40x1/2 (11-SEAL SCREWS) (11-SEAL SCREWS) (11-SEAL SCREWS) (11-SEAL SCREWS) (11-SEAL SCREWS) (11-SEAL SCREWS) (11-SEAL SCREWS) (11-SEAL SCREWS) (11-SEAL SCREWS) (11-SEAL SCREWS) (11-SEAL SCREWS) (11-SEAL SCREWS) (11-SEAL SCREWS) (11-SEAL SCREWS) (11-SEAL SCREWS) (11-SEAL SCREWS) (11-SEAL SCREWS) (11-SEAL SCREWS) (11-SEAL SCREWS) | 383 |
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| NAPPCO | TX | Self-Sealing Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #8-32 x 1/2 | phil pan seal screw s/s 18-8 8-32x1/2 (11-SEAL SCREWS) (11-SEAL SCREWS) (11-SEAL SCREWS) (11-SEAL SCREWS) (11-SEAL SCREWS) (11-SEAL SCREWS) (11-SEAL SCREWS) (11-SEAL SCREWS) (11-SEAL SCREWS) (11-SEAL SCREWS) (11-SEAL SCREWS) (11-SEAL SCREWS) (11-SEAL SCREWS) (11-SEAL SCREWS) (11-SEAL SCREWS) (11-SEAL SCREWS) (11-SEAL SCREWS) (11-SEAL SCREWS) (11-SEAL SCREWS) | 102 |
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| Hayes | CA | Self-Sealing Screw | Steel | Plain | #6-32 x 1/2 | ms 3212-15 6-32 x 1/2 phil pan seel screw (silicone o-ring) | 56 |
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| Hayes | CA | Self-Sealing Screw | Steel | Plain | #4-40 x 1/2 | ms3212-5 4-40 x 1/2 phil pan seel screw 18-8 | 2056 |
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| Hayes | CA | Self-Sealing Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #6-32 x 1/2 | 6-32 x 1/2 s-pan seel scr sil-oring 18-8ss | 100 |
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| Hayes | CA | Self-Sealing Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #6-32 x 1/2 | 6-32 x 1/2 p-pan seel scr sil-oring 18-8ss | 587 |
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| Hayes | CA | Self-Sealing Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4-40 x 1/2 | 4-40 x 1/2 p-pan seel scr sil-oring 18-8ss bk/ox | 2185 |
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| Hayes | CA | Self-Sealing Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #6-32 x 1/2 | 6-32 x 1/2 p-pan seel scr sil-oring 18-8ss bk/ox | 420 |
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| Hayes | CA | Self-Sealing Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4-40 x 1/2 | 4-40 x 1/2 p-100 flat seel scr sil-oring 18-8ss | 100 |
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| NAPPCO | TX | Self-Sealing Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #10-32 x 1/2 | flat slotted seal screw s/s 18-8 10-32x1/2 (11-SEAL SCREWS) (11-SEAL SCREWS) (11-SEAL SCREWS) (11-SEAL SCREWS) (11-SEAL SCREWS) (11-SEAL SCREWS) (11-SEAL SCREWS) (11-SEAL SCREWS) (11-SEAL SCREWS) (11-SEAL SCREWS) (11-SEAL SCREWS) (11-SEAL SCREWS) (11-SEAL SCREWS) (11-SEAL SCREWS) (11-SEAL SCREWS) (11-SEAL SCREWS) (11-SEAL SCREWS) (11-SEAL SCREWS) (11-SEAL SCREWS) | 300 |
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| NAPPCO | TX | Self-Sealing Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4-40 x 1/2 | flat slotted seal screw s/s 18-8 4-40x1/2 (11-SEAL SCREWS) (11-SEAL SCREWS) (11-SEAL SCREWS) (11-SEAL SCREWS) (11-SEAL SCREWS) (11-SEAL SCREWS) (11-SEAL SCREWS) (11-SEAL SCREWS) (11-SEAL SCREWS) (11-SEAL SCREWS) (11-SEAL SCREWS) (11-SEAL SCREWS) (11-SEAL SCREWS) (11-SEAL SCREWS) (11-SEAL SCREWS) (11-SEAL SCREWS) (11-SEAL SCREWS) (11-SEAL SCREWS) (11-SEAL SCREWS) | 1850 |
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| NAPPCO | TX | Self-Sealing Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 120 x 1/2 | phil flat seal sc s/s 18-8 1/-20x1/2 (11-SEAL SCREWS) (11-SEAL SCREWS) (11-SEAL SCREWS) (11-SEAL SCREWS) (11-SEAL SCREWS) (11-SEAL SCREWS) (11-SEAL SCREWS) (11-SEAL SCREWS) (11-SEAL SCREWS) (11-SEAL SCREWS) (11-SEAL SCREWS) (11-SEAL SCREWS) (11-SEAL SCREWS) (11-SEAL SCREWS) (11-SEAL SCREWS) (11-SEAL SCREWS) (11-SEAL SCREWS) (11-SEAL SCREWS) (11-SEAL SCREWS) | 100 |
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| NAPPCO | TX | Self-Sealing Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 x 1/2 | phil pan seal sc s/s18-8 1/4-20x1/2 o-rb (11-SEAL SCREWS) (11-SEAL SCREWS) (11-SEAL SCREWS) (11-SEAL SCREWS) (11-SEAL SCREWS) (11-SEAL SCREWS) (11-SEAL SCREWS) (11-SEAL SCREWS) (11-SEAL SCREWS) (11-SEAL SCREWS) (11-SEAL SCREWS) (11-SEAL SCREWS) (11-SEAL SCREWS) (11-SEAL SCREWS) (11-SEAL SCREWS) (11-SEAL SCREWS) (11-SEAL SCREWS) (11-SEAL SCREWS) (11-SEAL SCREWS) | 300 |
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| NAPPCO | TX | Self-Sealing Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #8-32 x 1/2 | pan slotted seal screw s/s 18-8 8-32x1/2 (11-SEAL SCREWS) (11-SEAL SCREWS) (11-SEAL SCREWS) (11-SEAL SCREWS) (11-SEAL SCREWS) (11-SEAL SCREWS) (11-SEAL SCREWS) (11-SEAL SCREWS) (11-SEAL SCREWS) (11-SEAL SCREWS) (11-SEAL SCREWS) (11-SEAL SCREWS) (11-SEAL SCREWS) (11-SEAL SCREWS) (11-SEAL SCREWS) (11-SEAL SCREWS) (11-SEAL SCREWS) (11-SEAL SCREWS) (11-SEAL SCREWS) | 1840 |
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| NAPPCO | TX | Self-Sealing Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #10-32 x 1/2 | pan slotted seal screw s/s 18-8 10-32x1/2 (11-SEAL SCREWS) (11-SEAL SCREWS) (11-SEAL SCREWS) (11-SEAL SCREWS) (11-SEAL SCREWS) (11-SEAL SCREWS) (11-SEAL SCREWS) (11-SEAL SCREWS) (11-SEAL SCREWS) (11-SEAL SCREWS) (11-SEAL SCREWS) (11-SEAL SCREWS) (11-SEAL SCREWS) (11-SEAL SCREWS) (11-SEAL SCREWS) (11-SEAL SCREWS) (11-SEAL SCREWS) (11-SEAL SCREWS) (11-SEAL SCREWS) | 190 |
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| Irwin Ind | Ont | Self-Sealing Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4-40 x 1/2 | 4-40 x 1/2 ss 18-8 phil pan seelscrew with silicone oring | 1343 |
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| Olander | CA | Self-Sealing Screw | Steel | Zinc/Clear | 1/2-13 x 1/2 | 1/2-13 x 1/2 hx hd seelskrewsst rohs () () | 59 |
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| Endries | WI | Self-Sealing Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4-40 x 1/2 | 4-40x1/2 phillips pan head seal screw 18-8 buna-n o-ring | 4929 |
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| Endries | WI | Self-Sealing Screw | Steel | Plain | #8 x 1/2 | #8x1/2 hwh self dr illing screw oxiseal | 7657 |
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| Endries | WI | Self-Sealing Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 x 1/2 | 1/4-20x1/2 hex head se al screw silicone o-ring stainless 18-8 | 875 |
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| Endries | WI | Self-Sealing Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #6-32 x 1/2 | 6-32x1/2 slotted pan h ead seal screw stainless 18-8 buna-n o-ring | 1500 |
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| Endries | WI | Self-Sealing Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4-40 x 1/2 | 4-40x1/2 phillips pan head seal screw stainless 18-8 | 2856 |
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| Mansco | MI | Self-Sealing Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 x 1/2 | 1/4-20x1/2 truss phil m/s 18-8 s/s w/516 orange vibraseal patch 100/box | 26476 |
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| Century | NY | Self-Sealing Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | nt352r1032fc8 seal screw 10-32 x 1/2 phil pan hd stainless 10-32x1/2phpanssbun5315 | 100 |
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| Century | NY | Self-Sealing Screw | Steel | Plain | apm r4-40x1/2 2701-tp 4-40 x 1/2 phil pam head seal screw silicone o-ring w/nylon patch apm hexseal r4-40x1/2 2701-tp | 200 |
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| Century | NY | Self-Sealing Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 2-56 x 1/2 phillips pan seal screw viton o ring 18/8 | 20 |
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| Century | NY | Self-Sealing Screw | Steel | Plain | bae # 364a1529p2 6-32 x 1/2 oversized phil pan seal screw s per print bae systems 364a1529p2 | 75 |
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| Century | NY | Self-Sealing Screw | Steel | Plain | apm s4-40x1/2 2615 seal screw 4-40 x 1/2in slotten pan head seal screw w/fluoro silicone o-ring apm hexseal | 25 |
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| Liberty | IL | Self-Sealing Screw | Steel | Zinc/Clear | #6-32 x 1/2 | phillips flat m-300-a plating per attached .0003-.0005 clear Cr3+ chromium & sealer topcoat w/wax 96 hr to onset of white corrosion .0003-.0005 clear Cr3+ chromium & sealer topcoat w/wax 96 hr to onset of white corrosion | 800 |
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| Olander | CA | Self-Sealing Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #6-32 x 1/2 | 6-32 x 1/2 ph pan seelskrew sst () | 500 |
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| Olander | CA | Self-Sealing Screw | Steel | Plain | #4-40 x 1/2 | 4-40 x 1/2 phil flat 100 deg seelskrew () | 54 |
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| Olander | CA | Self-Sealing Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 x 1/2 | 1/4-20 x 1/2 slot pan hd seelskrew sst () | 107 |
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| Olander | CA | Self-Sealing Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #6-32 x 1/2 | 6-32 x 1/2 ph pan seelskrew sst rohs () | 800 |
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| Olander | CA | Self-Sealing Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #2-56 x 1/2 | 2-56x1/2 phillips pan seelskrew sst rohs 2C50PPMSB/SEEL () | 1225 |
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| Olander | CA | Self-Sealing Screw | Steel | Plain | #6-32 x 1/2 | 6-32 x 1/2 phil flat 100deg seelskrew () | 900 |
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| Olander | CA | Self-Sealing Screw | Steel | Plain | #8-32 x 1/2 | 8-32 x 1/2 phil flat 100 deg seelskrew () | 714 |
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| Olander | CA | Self-Sealing Screw | Steel | Plain | #4-40 x 1/2 | 4-40 x 1/2 phil flat 100 deg seelskrew () | 749 |
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| Olander | CA | Self-Sealing Screw | Steel | Zinc/Clear | 1/4-20 x 1/2 | 1/4-20 x 1/2 hx hd seelskrewsst rohs () | 91 |
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| Olander | CA | Self-Sealing Screw | Steel | Plain | #6-32 x 1/2 | 6-32 x 1/2 phil flat 100 deg seelskrew () | 997 |
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| Hayes | CA | Self-Sealing Screw | 316, 317, A4 Stainless | Plain | #4-40 x 1/2 | 4-40x1/2 phil pan seel screw w/buna oring 316ss | 24 |
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| Alma Bolt | MI | Self-Sealing Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #8 x 1/2 | st. st. hwh type-a w/bond seal washr | 7400 |
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| Global | CA | Self-Sealing Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #10-32 x 1/2 | phillips pan seal screw 18-8 | 495 |
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| Global | CA | Self-Sealing Screw | Steel | Plain | #10-32 x 1/2 | slotted pan seal screw st. | 184 |
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| Delta | TX | Self-Sealing Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4-40 x 1/2 | phil pan seal screw 18-8 sst #4-40 x 1/2 | 307 |
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| Delta | TX | Self-Sealing Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #6-32 x 1/2 | phil pan seal screw 18-8 sst #6-32 x 1/2 | 516 |
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| Delta | TX | Self-Sealing Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4-40 x 1/2 | slotted pan seal screw 18-8 sst #4-40 x 1/2 | 61 |
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| Delta | TX | Self-Sealing Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #6-32 x 1/2 | slotted pan seal screw 18-8 sst #6-32 x 1/2 | 261 |
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| Delta | TX | Self-Sealing Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #10-32 x 1/2 | slotted pan seal screw 18-8 st #10-32 x 1/2 | 116 |
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| Delta | TX | Self-Sealing Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #8-32 x 1/2 | slotted pan seal screw 18-8 sst #8-32 x 1/2 | 791 |
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| Bryce Fastener | AZ | Self-Sealing Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4-40 x 1/2 | 4-40x1/2 button head seal rex ss{0gp6- | 198.2 |
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| GOEBEL | TX | Self-Sealing Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #8 x 1/2 | -w/washer (hnbr-318ln) s/s (318ln) hh | 35000 |
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| GOEBEL | TX | Self-Sealing Screw | 316, 317, A4 Stainless | Plain | #8 x 1/2 | -w/washer (epdm-316) s/s (318ln) hh | 19500 |
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| IRF | NJ | Self-Sealing Screw | Steel | Zinc/Black | #5 x 1/2 | phillips panil t/s type-25 stl nickel black Cr3+ with sealer | 1277 |
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| IRF | NJ | Self-Sealing Screw | Steel | Zinc/Clear | 5/16-18 x 1/2 | indented hex washer unslotted m/s type-f stl nickel clear Cr3+ with sealer | 21973 |
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| IRF | NJ | Self-Sealing Screw | Steel | Zinc/Clear | #8 x 1/2 | pan phil hi lo stl nickel clear Cr3+ with sealer | 6595 |
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| NAPPCO | TX | Self-Sealing Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4-40 x 1/2 | phil pan seal screw s/s 18-8 4-40x1/2 | 290 |
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| NAPPCO | TX | Self-Sealing Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 x 1/2 | phil pan seal screw 18-8 ss 1/4-20 x 1/2 | 30 |
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| Delta | TX | Self-Sealing Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #10-32 x 1/2 | phil pan seal screw 18-8 st #10-32 x 1/2 | 79 |
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| IRF | NJ | Self-Sealing Screw | Steel | Zinc/Clear | 1/4-20 x 1/2 | phil pan m/s stl nickel clear & sealer | 212354 |
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| IRF | NJ | Self-Sealing Screw | Steel | Zinc/Clear | 1/4-20 x 1/2 | phil pan m/s stl nickel clear & sealer | 212354 |
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| IRF | NJ | Self-Sealing Screw | Steel | Zinc/Clear | 1/4-20 x 1/2 | phil pan m/s stl nickel clear & sealer | 212354 |
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| NAPPCO | TX | Self-Sealing Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #10-32 x 1/2 | phil pan seal screw s/s 18-8 10-32x1/2 | 129 |
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| AIH | AZ | Self-Sealing Screw | Steel | Plain | #6-32 x 1/2 | 6-32 x 1/2 sealing phil pan m/s s/s pass MS3213-15 | 200 |
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| AIH | AZ | Self-Sealing Screw | Steel | Plain | #4-40 x 1/2 | MS3212-5 | 56 |
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| JET FITTING | CA | Self-Sealing Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #10-32 x 1/2 | machine screw hex 1032x1/2 stainless steel w/seal trimmed head | 510 |
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| Hewes | NY | Self-Sealing Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #6-32 x 1/2 | 6-32x 1/2 slt pan seal scr | 2370 |
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| Revcar | VA | Self-Sealing Screw | Steel | Plain | #8-32 x 1/2 | slotted pan m/s polyseal iii | 7,000 |
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| FMP | MA | Self-Sealing Screw | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4-20 x 1/2 | phillips pan seal/s with silicon o-ring | 350 |
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