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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: 152

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Part #

Screws & Fasteners 6-32X5/8", Phillips Pan Head, 18-8 Stainless Steel with Silicone O-Ring, Seal Screw

R6-32X5/8 2701
APM HEXSEAL
1: £0.586
854In Stock

Mfr. Part No.
R6-32X5/8 2701

Mouser Part No
608-R6-32X5/8

Screws & Fasteners 6-32X5/8", Phillips Pan Head, 18-8 Stainless Steel with Silicone O-Ring, Seal Screw

Datasheet

854In Stock

£0.586

£0.498

£0.468

£0.44

View

Min.: 1
Mult.: 1

Screws & Fasteners 6-32X7/8", Phillips Pan Head, 18-8 Stainless Steel with Silicone O-Ring, Seal Screw

R6-32X7/8 2701
APM HEXSEAL
1: £0.623
27In Stock

Mfr. Part No.
R6-32X7/8 2701

Mouser Part No
608-R6-32X7/8

Screws & Fasteners 6-32X7/8", Phillips Pan Head, 18-8 Stainless Steel with Silicone O-Ring, Seal Screw

27In Stock

£0.623

£0.53

£0.497

£0.468

View

Min.: 1
Mult.: 1

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

R8-32X1/4 2701
APM HEXSEAL
1: £0.458
2,241In Stock

Mfr. Part No.
R8-32X1/4 2701

Mouser Part No
608-R8-32X1/4

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

Datasheet

2,241In Stock

£0.458

£0.388

£0.363

£0.342

View

Min.: 1
Mult.: 1

Screws & Fasteners 8-32X3/4", Phillips Pan Head, 18-8 Stainless Steel with Silicone O-Ring, Seal Screw

R8-32X3/4 2701
APM HEXSEAL
1: £0.676
128In Stock

Mfr. Part No.
R8-32X3/4 2701

Mouser Part No
608-R8-32X3/4

Screws & Fasteners 8-32X3/4", Phillips Pan Head, 18-8 Stainless Steel with Silicone O-Ring, Seal Screw

Datasheet

128In Stock

£0.676

£0.576

£0.54

£0.509

View

Min.: 1
Mult.: 1

Screws & Fasteners 8-32X5/16", Phillips Pan Head, 18-8 Stainless Steel with Silicone O-Ring, Seal Screw

R8-32X5/16 2701
APM HEXSEAL
1: £0.586
136In Stock

Mfr. Part No.
R8-32X5/16 2701

Mouser Part No
608-R8-32X5/162701

Screws & Fasteners 8-32X5/16", Phillips Pan Head, 18-8 Stainless Steel with Silicone O-Ring, Seal Screw

Datasheet

136In Stock

£0.586

£0.498

£0.468

£0.44

View

Min.: 1
Mult.: 1

Screws & Fasteners 8-32X7/16", Phillips Pan Head, 18-8 Stainless Steel with Silicone O-Ring, Seal Screw

R8-32X7/16 2701
APM HEXSEAL
1: £0.608
111In Stock

Mfr. Part No.
R8-32X7/16 2701

Mouser Part No
608-R8-32X7/16

Screws & Fasteners 8-32X7/16", Phillips Pan Head, 18-8 Stainless Steel with Silicone O-Ring, Seal Screw

Datasheet

111In Stock

£0.608

£0.514

£0.482

£0.454

View

Min.: 1
Mult.: 1

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

R8-32X7/8 2701
APM HEXSEAL
1: £0.705
758In Stock

Mfr. Part No.
R8-32X7/8 2701

Mouser Part No
608-R8-32X7/8

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

Datasheet

758In Stock

£0.705

£0.663

£0.569

£0.537

View

Min.: 1
Mult.: 1

Screws & Fasteners SEELSKREW MT PH REC M4 X 0.7 THD 20MM LG

RM4X20MM-2701
APM HEXSEAL
1: £0.488
1,191In Stock

Mfr. Part No.
RM4X20MM-2701

Mouser Part No
608-RM4X20MM2701

Screws & Fasteners SEELSKREW MT PH REC M4 X 0.7 THD 20MM LG

Datasheet

1,191In Stock

£0.488

£0.459

£0.394

£0.37

View

Min.: 1
Mult.: 1

Screws & Fasteners SEELSKREW FH REC 4-40 THD 1/4" NBR

SFR4-40 X 1/4 2701
APM HEXSEAL
1: £0.526
963In Stock
2,150Expected 24/08/2026

Mfr. Part No.
SFR4-40 X 1/4 2701

Mouser Part No
608-SFR4-40X1/42701

Screws & Fasteners SEELSKREW FH REC 4-40 THD 1/4" NBR

963In Stock

2,150Expected 24/08/2026

£0.526

£0.405

£0.369

£0.325

View

Min.: 1
Mult.: 1

Screws & Fasteners SEELNUTS 5/16-24 THREAD

5/16-24 AJ 6
APM HEXSEAL
1: £2.78
15In Stock

Mfr. Part No.
5/16-24 AJ 6

Mouser Part No
608-5/16-24AJ6

Screws & Fasteners SEELNUTS 5/16-24 THREAD

15In Stock

£2.78

£2.61

£2.28

£2.17

View

Min.: 1
Mult.: 1

Screws & Fasteners 1/4"-20X5/8", Phillips Pan Head, 18-8 Stainless Steel with Silicone O-Ring, Seal Screw

R1/4-20X5/8 2701
APM HEXSEAL
1: £1.17
65In Stock

Mfr. Part No.
R1/4-20X5/8 2701

Mouser Part No
608-R1/4-20X5/8

Screws & Fasteners 1/4"-20X5/8", Phillips Pan Head, 18-8 Stainless Steel with Silicone O-Ring, Seal Screw

65In Stock

£1.17

£1.00

£0.943

£0.89

View

Min.: 1
Mult.: 1

Screws & Fasteners 10-32X1", Phillips Pan Head, 18-8 Stainless Steel with Silicone O-Ring, Seal Screw

R10-32X1 2701
APM HEXSEAL
1: £0.78
3In Stock

Mfr. Part No.
R10-32X1 2701

Mouser Part No
608-R10-32X1

Screws & Fasteners 10-32X1", Phillips Pan Head, 18-8 Stainless Steel with Silicone O-Ring, Seal Screw

Datasheet

3In Stock

£0.78

£0.668

£0.627

£0.591

View

Min.: 1
Mult.: 1

Screws & Fasteners 10-32X1", Phillips Pan Head, 18-8 Stainless Steel with Silicone O-Ring, Seal Screw

R10-32X3/4 2701
APM HEXSEAL
1: £0.834
816In Stock

Mfr. Part No.
R10-32X3/4 2701

Mouser Part No
608-R10-32X3/4

Screws & Fasteners 10-32X1", Phillips Pan Head, 18-8 Stainless Steel with Silicone O-Ring, Seal Screw

Datasheet

816In Stock

£0.834

£0.712

£0.67

£0.631

View

Min.: 1
Mult.: 1

Screws & Fasteners 6-32X3/4", Phillips Pan Head, 18-8 Stainless Steel with Silicone O-Ring, Seal Screw

R6-32X3/4 2701
APM HEXSEAL
1: £0.496
231In Stock
450On Order

Mfr. Part No.
R6-32X3/4 2701

Mouser Part No
608-R6-32X3/4

Screws & Fasteners 6-32X3/4", Phillips Pan Head, 18-8 Stainless Steel with Silicone O-Ring, Seal Screw

Datasheet

231In Stock

450On Order

£0.496

£0.421

£0.394

£0.37

View

Min.: 1
Mult.: 1

Screws & Fasteners 8-32X5/8", Phillips Pan Head, 18-8 Stainless Steel with Silicone O-Ring, Seal Screw

R8-32X5/8 2701
APM HEXSEAL
1: £0.661
30In Stock

Mfr. Part No.
R8-32X5/8 2701

Mouser Part No
608-R8-32X5/8

Screws & Fasteners 8-32X5/8", Phillips Pan Head, 18-8 Stainless Steel with Silicone O-Ring, Seal Screw

Datasheet

30In Stock

£0.661

£0.56

£0.526

£0.496

View

Min.: 1
Mult.: 1

Screws & Fasteners 8-32X5/8", Phillips Flat Head, 18-8 Stainless Steel with Silicone O-Ring, Seal Screw

SFR8-32X5/8 2701
APM HEXSEAL
1: £0.571
29In Stock

Mfr. Part No.
SFR8-32X5/8 2701

Mouser Part No
608-SFR8-32X5/82701

Screws & Fasteners 8-32X5/8", Phillips Flat Head, 18-8 Stainless Steel with Silicone O-Ring, Seal Screw

29In Stock

£0.571

£0.497

£0.485

£0.48

View

Min.: 1
Mult.: 1

Screws & Fasteners 4-40X1/2", Slotted Pan Head, 18-8 Stainless Steel with Silicone O-Ring, Seal Screw

S4-40X1/2 2701
APM HEXSEAL
1: £0.526
82In Stock

Mfr. Part No.
S4-40X1/2 2701

Mouser Part No
608-S4-40X1/22701

Screws & Fasteners 4-40X1/2", Slotted Pan Head, 18-8 Stainless Steel with Silicone O-Ring, Seal Screw

82In Stock

£0.526

£0.405

£0.369

£0.314

View

Min.: 1
Mult.: 1

Screws & Fasteners 10-24X7/16", Phillips Pan Head, 18-8 Stainless Steel with Silicone O-Ring, Seal Screw

R10-24X7/16 2701
APM HEXSEAL
1: £0.871
87In Stock

Mfr. Part No.
R10-24X7/16 2701

Mouser Part No
608-R10-24X7/16

Screws & Fasteners 10-24X7/16", Phillips Pan Head, 18-8 Stainless Steel with Silicone O-Ring, Seal Screw

Datasheet

87In Stock

£0.871

£0.702

£0.596

£0.55

£0.373

Min.: 1
Mult.: 1

Screws & Fasteners SEELSKREW STD PH REC 4-40 THD 3/16"LG

R4-40X3/16 2701
APM HEXSEAL
1: £0.661
12,170On Order

Mfr. Part No.
R4-40X3/16 2701

Mouser Part No
608-R4-40X3/162701

Screws & Fasteners SEELSKREW STD PH REC 4-40 THD 3/16"LG

12,170On Order

£0.661

£0.523

£0.443

£0.407

View

Min.: 1
Mult.: 1

Screws & Fasteners 1/4"-20X1/2", Phillips Pan Head, 18-8 Stainless Steel with Silicone O-Ring, Seal Screw

R1/4-20X1/2 2701
APM HEXSEAL
1: £0.882
1In Stock

Mfr. Part No.
R1/4-20X1/2 2701

Mouser Part No
608-R1/4-20X1/2

Screws & Fasteners 1/4"-20X1/2", Phillips Pan Head, 18-8 Stainless Steel with Silicone O-Ring, Seal Screw

Datasheet

1In Stock

£0.882

£0.759

£0.712

£0.672

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
197Expected 14/08/2026

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

197Expected 14/08/2026

£0.89

£0.70

£0.537

£0.53

View

Min.: 1
Mult.: 1

Screws & Fasteners 4-40X7/8", Phillips Pan Head, 18-8 Stainless Steel with Silicone O-Ring, Seal Screw

R4-40X7/8 2701
APM HEXSEAL
1: £0.496
293On Order

Mfr. Part No.
R4-40X7/8 2701

Mouser Part No
608-R4-40X7/8

Screws & Fasteners 4-40X7/8", Phillips Pan Head, 18-8 Stainless Steel with Silicone O-Ring, Seal Screw

Datasheet

293On Order

£0.496

£0.421

£0.394

£0.37

View

Min.: 1
Mult.: 1

Screws & Fasteners

S/6-32X1/4 2701
APM HEXSEAL
1: £0.555
76Expected 25/08/2026

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

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

Screws & Fasteners

76Expected 25/08/2026

£0.555

£0.396

£0.361

£0.317

View

Min.: 1
Mult.: 1

Screws & Fasteners

SFR6-32 x 3/8 2701
APM HEXSEAL
1: £0.684
4,299On Order

Mfr. Part No.
SFR6-32 x 3/8 2701

Mouser Part No
608-SFR6-323/82701

Screws & Fasteners

4,299On Order

£0.684

£0.527

£0.48

£0.423

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
36Expected 20/08/2026

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

36Expected 20/08/2026

£2.45

£1.96

£1.53

£1.52

View

Min.: 1
Mult.: 1