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Self-Sealing Hardware

APM HEXSEAL Self-Sealing Hardware features fasteners and washers, including SEELSKREWS®, SEELBOLTS®, SEELNUTS®, and SEELOC® WASHERS. This reusable hardware offers positive sealing under pressure or vacuum and resists loosening due to vibration. Optional O-ring seal materials assure performance with a wide variety of gasses and liquids. APM HEXSEAL Self-Sealing Hardware is easy to install, compatible with all surface finishes, and tested and listed to UL Standard 50, Types 1-13.

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Results: 153

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Part #

Screws & Fasteners 2-562X3/16", Phillips Pan Head, 18-8 Stainless Steel with Silicone O-Ring, Seal Screw

R2-56X3/16 2701
APM HEXSEAL
1: CHF 0.94
376In Stock

Mfr. Part No.
R2-56X3/16 2701

Mouser Part No
608-R2-56X3/162701

Screws & Fasteners 2-562X3/16", Phillips Pan Head, 18-8 Stainless Steel with Silicone O-Ring, Seal Screw

376In Stock

CHF 0.94

CHF 0.739

CHF 0.675

CHF 0.597

View

Min.: 1
Mult.: 1

Screws & Fasteners 4-40X5/16", Phillips Pan Head, 18-8 Stainless Steel with Fluoro-Silicone O-Ring, Seal Screw

R4-40X5/16 2615
APM HEXSEAL
1: CHF 0.785
6’295In Stock

Mfr. Part No.
R4-40X5/16 2615

Mouser Part No
608-R4-40X5/162615

Screws & Fasteners 4-40X5/16", Phillips Pan Head, 18-8 Stainless Steel with Fluoro-Silicone O-Ring, Seal Screw

Datasheet

6’295In Stock

CHF 0.785

CHF 0.615

CHF 0.562

CHF 0.497

View

Min.: 1
Mult.: 1

Screws & Fasteners SEELSKREW FH REC 4-40 THD 5/16

SFR4-40X5/16 2701
APM HEXSEAL
1: CHF 0.698
5’345In Stock

Mfr. Part No.
SFR4-40X5/16 2701

Mouser Part No
608-SFR440X5162701

Screws & Fasteners SEELSKREW FH REC 4-40 THD 5/16

5’345In Stock

CHF 0.698

CHF 0.536

CHF 0.488

CHF 0.43

View

Min.: 1
Mult.: 1

Screws & Fasteners

S/6-32X1/4 2701
APM HEXSEAL
1: CHF 0.586
220In Stock

Mfr. Part No.
S/6-32X1/4 2701

Mouser Part No
608-S/6-32X1/4

Screws & Fasteners

220In Stock

CHF 0.586

CHF 0.419

CHF 0.382

CHF 0.335

View

Min.: 1
Mult.: 1

Screws & Fasteners

SFR4-40 x 3/8 2701
APM HEXSEAL
1: CHF 0.579
1’502In Stock
4’350Expected 8/14/2026

Mfr. Part No.
SFR4-40 x 3/8 2701

Mouser Part No
608-SFR4-40X3-82701

Screws & Fasteners

1’502In Stock

4’350Expected 8/14/2026

CHF 0.579

CHF 0.449

CHF 0.431

CHF 0.336

CHF 0.32

Min.: 1
Mult.: 1

Screws & Fasteners Screws and Fasteners

SFR8-32x1/2-2701
APM HEXSEAL
1: CHF 0.793
308In Stock

Mfr. Part No.
SFR8-32x1/2-2701

Mouser Part No
608-SFR832X1/22701

Screws & Fasteners Screws and Fasteners

308In Stock

CHF 0.793

CHF 0.635

CHF 0.539

CHF 0.497

View

Min.: 1
Mult.: 1

Screws & Fasteners SEELSKREW MT PH SLOT M3 X .5 THD 12MM

SM3X12MM-2701
APM HEXSEAL
1: CHF 0.634
1’132In Stock

Mfr. Part No.
SM3X12MM-2701

Mouser Part No
608-SM3X12MM-2701

Screws & Fasteners SEELSKREW MT PH SLOT M3 X .5 THD 12MM

1’132In Stock

CHF 0.634

CHF 0.491

CHF 0.449

CHF 0.395

View

Min.: 1
Mult.: 1

Screws & Fasteners SEELSKREW MT PH SLOT M3 X .5 THD 20MM

SM3X20MM-2701
APM HEXSEAL
1: CHF 0.817
553In Stock

Mfr. Part No.
SM3X20MM-2701

Mouser Part No
608-SM3X20MM-2701

Screws & Fasteners SEELSKREW MT PH SLOT M3 X .5 THD 20MM

553In Stock

CHF 0.817

CHF 0.637

CHF 0.495

CHF 0.485

View

Min.: 1
Mult.: 1

Screws & Fasteners 2-562X3/8", Phillips Pan Head, 18-8 Stainless Steel with Silicone O-Ring, Seal Screw

R2-56X3/8 2701
APM HEXSEAL
1: CHF 0.94
367In Stock

Mfr. Part No.
R2-56X3/8 2701

Mouser Part No
608-R2-56X3/8

Screws & Fasteners 2-562X3/8", Phillips Pan Head, 18-8 Stainless Steel with Silicone O-Ring, Seal Screw

Datasheet

367In Stock

CHF 0.94

CHF 0.762

CHF 0.647

CHF 0.597

View

Min.: 1
Mult.: 1

Screws & Fasteners

SFR832X3/8 2701
APM HEXSEAL
1: CHF 0.714
100In Stock

Mfr. Part No.
SFR832X3/8 2701

Mouser Part No
608-SFR832X3/8

Screws & Fasteners

100In Stock

CHF 0.714

CHF 0.556

CHF 0.467

CHF 0.455

View

Min.: 1
Mult.: 1

Screws & Fasteners SEELSKREW STD PH REC 1/4-20 THD 1" LG

R1/4-20X1
APM HEXSEAL
1: CHF 1.83
25In Stock

Mfr. Part No.
R1/4-20X1

Mouser Part No
608-R1/4-20X1

Screws & Fasteners SEELSKREW STD PH REC 1/4-20 THD 1" LG

25In Stock

CHF 1.83

CHF 1.45

CHF 1.22

CHF 1.14

View

Min.: 1
Mult.: 1

Screws & Fasteners 10-32X7/8", Phillips Pan Head, 18-8 Stainless Steel with Silicone O-Ring, Seal Screw

R10-32X7/8 2701
APM HEXSEAL
1: CHF 1.18
25In Stock

Mfr. Part No.
R10-32X7/8 2701

Mouser Part No
608-R10-32X7/8

Screws & Fasteners 10-32X7/8", Phillips Pan Head, 18-8 Stainless Steel with Silicone O-Ring, Seal Screw

Datasheet

25In Stock

CHF 1.18

CHF 0.95

CHF 0.801

CHF 0.745

CHF 0.523

Min.: 1
Mult.: 1

Screws & Fasteners SCR PAN STL sT m3X25 PHIL SELF SEAL

RM3X25MM 2701
APM HEXSEAL
1: CHF 1.50
260In Stock

Mfr. Part No.
RM3X25MM 2701

Mouser Part No
608-RM3X25MM2701

Screws & Fasteners SCR PAN STL sT m3X25 PHIL SELF SEAL

260In Stock

CHF 1.50

CHF 1.22

CHF 1.02

CHF 0.95

CHF 0.698

Min.: 1
Mult.: 1

Screws & Fasteners

SFR4-40 x 3/8 2615
APM HEXSEAL
1: CHF 0.857
189In Stock
200Expected 8/4/2026

Mfr. Part No.
SFR4-40 x 3/8 2615

Mouser Part No
608-SFR4-40X382615

Screws & Fasteners

189In Stock

200Expected 8/4/2026

CHF 0.857

CHF 0.671

CHF 0.613

CHF 0.542

View

Min.: 1
Mult.: 1

Screws & Fasteners SEELSKREW MT PH SLOT M3 X .5 THD 8MM

SM3X8MM-2701
APM HEXSEAL
1: CHF 0.603
209In Stock

Mfr. Part No.
SM3X8MM-2701

Mouser Part No
608-SM3X8MM-2701

Screws & Fasteners SEELSKREW MT PH SLOT M3 X .5 THD 8MM

209In Stock

CHF 0.603

CHF 0.47

CHF 0.429

CHF 0.378

View

Min.: 1
Mult.: 1

Screws & Fasteners M2.5X6MM, Phillips Pan Head, 18-8 Stainless Steel with Silicone O-Ring, Seal Screw

RM2.5x6MM 2701
APM HEXSEAL
1: CHF 0.793
721In Stock
2’850Expected 8/21/2026

Mfr. Part No.
RM2.5x6MM 2701

Mouser Part No
608-RM2.5X6MM2701

Screws & Fasteners M2.5X6MM, Phillips Pan Head, 18-8 Stainless Steel with Silicone O-Ring, Seal Screw

721In Stock

2’850Expected 8/21/2026

CHF 0.793

CHF 0.616

CHF 0.48

CHF 0.462

View

Min.: 1
Mult.: 1

Screws & Fasteners 2-562X5/16", Phillips Pan Head, 18-8 Stainless Steel with Silicone O-Ring, Seal Screw

R2-56X5/16 2701
APM HEXSEAL
1: CHF 0.94
60In Stock

Mfr. Part No.
R2-56X5/16 2701

Mouser Part No
608-R2-56X5/16

Screws & Fasteners 2-562X5/16", Phillips Pan Head, 18-8 Stainless Steel with Silicone O-Ring, Seal Screw

Datasheet

60In Stock

CHF 0.94

CHF 0.739

CHF 0.675

CHF 0.597

View

Min.: 1
Mult.: 1

Screws & Fasteners METRIC PAN HEAD WITH SLOTTED DRIVE 6MM

SM3X6MM-2701
APM HEXSEAL
1: CHF 0.603
1’982In Stock

Mfr. Part No.
SM3X6MM-2701

Mouser Part No
608-SM3X6MM-2701

Screws & Fasteners METRIC PAN HEAD WITH SLOTTED DRIVE 6MM

1’982In Stock

CHF 0.603

CHF 0.47

CHF 0.429

CHF 0.378

View

Min.: 1
Mult.: 1

Screws & Fasteners 4-40X9/16", Phillips Pan Head, 18-8 Stainless Steel with Silicone O-Ring, Seal Screw

R4-40X9/16 2701
APM HEXSEAL
1: CHF 0.777
3’360In Stock

Mfr. Part No.
R4-40X9/16 2701

Mouser Part No
608-R4-40X9/16

Screws & Fasteners 4-40X9/16", Phillips Pan Head, 18-8 Stainless Steel with Silicone O-Ring, Seal Screw

Datasheet

3’360In Stock

CHF 0.777

CHF 0.599

CHF 0.463

CHF 0.458

View

Min.: 1
Mult.: 1

Screws & Fasteners 10-24X7/8", Phillips Pan Head, 18-8 Stainless Steel with Silicone O-Ring, Seal Screw

R10-24X7/8 2701
APM HEXSEAL
1: CHF 1.18
27In Stock

Mfr. Part No.
R10-24X7/8 2701

Mouser Part No
608-R10-24X7/8

Screws & Fasteners 10-24X7/8", Phillips Pan Head, 18-8 Stainless Steel with Silicone O-Ring, Seal Screw

Datasheet

27In Stock

CHF 1.18

CHF 0.95

CHF 0.801

CHF 0.745

CHF 0.523

Min.: 1
Mult.: 1

Screws & Fasteners 2-562X1", Phillips Pan Head, 18-8 Stainless Steel with Silicone O-Ring, Seal Screw

R2-56X1 2701
APM HEXSEAL
1: CHF 0.94
16In Stock

Mfr. Part No.
R2-56X1 2701

Mouser Part No
608-R2-56X1

Screws & Fasteners 2-562X1", Phillips Pan Head, 18-8 Stainless Steel with Silicone O-Ring, Seal Screw

16In Stock

CHF 0.94

CHF 0.739

CHF 0.567

CHF 0.56

View

Min.: 1
Mult.: 1

Screws & Fasteners SEELSKREW FLATHEAD W/SILICON RBR O-RING

SFR8-32X3/4-2701
APM HEXSEAL
1: CHF 0.888
94In Stock

Mfr. Part No.
SFR8-32X3/4-2701

Mouser Part No
608-SFR8-32X3/4-2701

Screws & Fasteners SEELSKREW FLATHEAD W/SILICON RBR O-RING

94In Stock

CHF 0.888

CHF 0.697

CHF 0.637

CHF 0.538

View

Min.: 1
Mult.: 1

Screws & Fasteners 1/4-20X1" 18-8 Stainless Steel Self-Seal Silicone O-Ring, Hex Cap Screw

ST1/4-20X1 2701
APM HEXSEAL
1: CHF 2.59
27In Stock

Mfr. Part No.
ST1/4-20X1 2701

Mouser Part No
608-ST1/4-20X1

Screws & Fasteners 1/4-20X1" 18-8 Stainless Steel Self-Seal Silicone O-Ring, Hex Cap Screw

Datasheet

27In Stock

CHF 2.59

CHF 2.07

CHF 1.90

CHF 1.61

View

Min.: 1
Mult.: 1

Screws & Fasteners 10-24X9/16", Phillips Pan Head, 18-8 Stainless Steel with Silicone O-Ring, Seal Screw

R10-24X9/16 2701
APM HEXSEAL
1: CHF 0.931
12In Stock

Mfr. Part No.
R10-24X9/16 2701

Mouser Part No
608-R10-24X9/16

Screws & Fasteners 10-24X9/16", Phillips Pan Head, 18-8 Stainless Steel with Silicone O-Ring, Seal Screw

Datasheet

12In Stock

CHF 0.931

CHF 0.756

CHF 0.643

CHF 0.592

View

Min.: 1
Mult.: 1

Screws & Fasteners 10-24X5/8", Phillips Pan Head, 18-8 Stainless Steel with Silicone O-Ring, Seal Screw

R10-24X5/8 2701
APM HEXSEAL
1: CHF 1.02
40In Stock

Mfr. Part No.
R10-24X5/8 2701

Mouser Part No
608-R10-24X5/8

Screws & Fasteners 10-24X5/8", Phillips Pan Head, 18-8 Stainless Steel with Silicone O-Ring, Seal Screw

40In Stock

CHF 1.02

CHF 0.824

CHF 0.70

CHF 0.648

CHF 0.445

Min.: 1
Mult.: 1