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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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Types of Electromechanical

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Results: 184

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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: £0.89
526In 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

526In Stock

£0.89

£0.70

£0.639

£0.566

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: £0.736
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

£0.736

£0.567

£0.518

£0.456

View

Min.: 1
Mult.: 1

Screws & Fasteners

S/6-32X1/4 2701
APM HEXSEAL
1: £0.555
20In Stock
200Expected 15/07/2026

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

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

Screws & Fasteners

20In Stock

200Expected 15/07/2026

£0.555

£0.396

£0.361

£0.317

View

Min.: 1
Mult.: 1

Screws & Fasteners

SFR4-40 x 3/8 2701
APM HEXSEAL
1: £0.548
812In Stock
2,500Expected 10/07/2026

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

Mouser Part No
608-SFR4-40X3-82701

Screws & Fasteners

812In Stock

2,500Expected 10/07/2026

£0.548

£0.425

£0.409

£0.318

£0.303

Min.: 1
Mult.: 1

Screws & Fasteners Screws and Fasteners

SFR8-32x1/2-2701
APM HEXSEAL
1: £0.751
308In Stock

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

Mouser Part No
608-SFR832X1/22701

Screws & Fasteners Screws and Fasteners

308In Stock

£0.751

£0.601

£0.511

£0.471

View

Min.: 1
Mult.: 1

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

SM3X12MM-2701
APM HEXSEAL
1: £0.601
647In Stock
1,000Expected 22/07/2026

Mfr. Part No.
SM3X12MM-2701

Mouser Part No
608-SM3X12MM-2701

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

647In Stock

1,000Expected 22/07/2026

£0.601

£0.465

£0.425

£0.374

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: £0.743
2,395In Stock
3,900Expected 20/07/2026

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

2,395In Stock

3,900Expected 20/07/2026

£0.743

£0.582

£0.533

£0.471

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: £0.89
467In 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

467In Stock

£0.89

£0.722

£0.613

£0.566

View

Min.: 1
Mult.: 1

Screws & Fasteners

SFR832X3/8 2701
APM HEXSEAL
1: £0.676
100In Stock

Mfr. Part No.
SFR832X3/8 2701

Mouser Part No
608-SFR832X3/8

Screws & Fasteners

100In Stock

£0.676

£0.526

£0.442

£0.431

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: £0.89
188In 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

188In Stock

£0.89

£0.70

£0.639

£0.566

View

Min.: 1
Mult.: 1

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

SFR4-40X5/16 2701
APM HEXSEAL
1: £0.661
2,105In Stock
3,650Expected 06/07/2026

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

Mouser Part No
608-SFR440X5162701

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

2,105In Stock

3,650Expected 06/07/2026

£0.661

£0.507

£0.462

£0.407

View

Min.: 1
Mult.: 1

Screws & Fasteners

SFR4-40 x 3/8 2615
APM HEXSEAL
1: £0.811
189In Stock

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

Mouser Part No
608-SFR4-40X382615

Screws & Fasteners

189In Stock

£0.811

£0.636

£0.581

£0.513

View

Min.: 1
Mult.: 1

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

SM3X8MM-2701
APM HEXSEAL
1: £0.571
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

£0.571

£0.445

£0.406

£0.358

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: £1.12
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

£1.12

£0.899

£0.759

£0.705

£0.495

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: £0.89
26In 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

26In Stock

£0.89

£0.70

£0.537

£0.53

View

Min.: 1
Mult.: 1

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

SFR8-32X3/4-2701
APM HEXSEAL
1: £0.841
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

£0.841

£0.66

£0.603

£0.51

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: £2.45
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

£2.45

£1.96

£1.80

£1.53

View

Min.: 1
Mult.: 1

Screws & Fasteners 2-562X3/4", Phillips Pan Head, 18-8 Stainless Steel with Silicone O-Ring, Seal Screw

R2-56X3/4 2701
APM HEXSEAL
1: £0.89
301In Stock

Mfr. Part No.
R2-56X3/4 2701

Mouser Part No
608-R2-56X3/4

Screws & Fasteners 2-562X3/4", Phillips Pan Head, 18-8 Stainless Steel with Silicone O-Ring, Seal Screw

301In Stock

£0.89

£0.70

£0.639

£0.566

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: £0.969
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

£0.969

£0.78

£0.663

£0.614

£0.422

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: £0.882
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

£0.882

£0.716

£0.608

£0.56

View

Min.: 1
Mult.: 1

Screws & Fasteners Screw

SFR4-40X1/2-7601
APM HEXSEAL
1: £0.653
142In Stock
500Expected 08/07/2026

Mfr. Part No.
SFR4-40X1/2-7601

Mouser Part No
608-SFR4-40X1/2-7601

Screws & Fasteners Screw

142In Stock

500Expected 08/07/2026

£0.653

£0.506

£0.462

£0.407

View

Min.: 1
Mult.: 1

Screws & Fasteners 2.5 x 12mm SeelSkrew

RM2.5X12MM 2701
APM HEXSEAL
1: £1.17
25In Stock

Mfr. Part No.
RM2.5X12MM 2701

Mouser Part No
608-RM2.5X12MM2701

Screws & Fasteners 2.5 x 12mm SeelSkrew

25In Stock

£1.17

£0.917

£0.841

£0.751

View

Min.: 1
Mult.: 1

Screws & Fasteners 8-32X1/4", Slotted Pan Head, 18-8 Stainless Steel with Silicone O-Ring, Seal Screw

S8-32X1/4 2701
APM HEXSEAL
1: £0.526
471In Stock

Mfr. Part No.
S8-32X1/4 2701

Mouser Part No
608-S8-32X1/42701

Screws & Fasteners 8-32X1/4", Slotted Pan Head, 18-8 Stainless Steel with Silicone O-Ring, Seal Screw

471In Stock

£0.526

£0.405

£0.369

£0.325

View

Min.: 1
Mult.: 1

Screws & Fasteners 1" SS 8-32 PHILIPS SCREW

SFR8-32x1-2701
APM HEXSEAL
1: £0.751
25In Stock

Mfr. Part No.
SFR8-32x1-2701

Mouser Part No
608-SFR832X12701

Screws & Fasteners 1" SS 8-32 PHILIPS SCREW

25In Stock

£0.751

£0.583

£0.546

£0.512

View

Min.: 1
Mult.: 1

Screws & Fasteners SeelSkrew Screw 1/2" Thread Size 4-40

R4-40X1/2 2615
APM HEXSEAL
1: £0.89
250In Stock

Mfr. Part No.
R4-40X1/2 2615

Mouser Part No
608-R440X1/22615

Screws & Fasteners SeelSkrew Screw 1/2" Thread Size 4-40

250In Stock

£0.89

£0.722

£0.613

£0.566

View

Min.: 1
Mult.: 1