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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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Part #

Screws & Fasteners 10-32X1/2", Phillips Pan Head, 18-8 Stainless Steel with Silicone O-Ring, Seal Screw

R10-32X1/2 2701
APM HEXSEAL
1: £0.548
2,667In Stock

Mfr. Part No.
R10-32X1/2 2701

Mouser Part No
608-R10-32X1/2

Screws & Fasteners 10-32X1/2", Phillips Pan Head, 18-8 Stainless Steel with Silicone O-Ring, Seal Screw

Datasheet

2,667In Stock

£0.548

£0.512

£0.442

£0.416

View

Min.: 1
Mult.: 1

Screws & Fasteners SEELSKREW MT PH REC M3 X 0.5 THD 8MM LG

RM3X8MM-2701
APM HEXSEAL
1: £0.39
12,109In Stock

Mfr. Part No.
RM3X8MM-2701

Mouser Part No
608-RM3X8MM

Screws & Fasteners SEELSKREW MT PH REC M3 X 0.5 THD 8MM LG

Datasheet

12,109In Stock

£0.39

£0.314

£0.274

£0.259

£0.246

Min.: 1
Mult.: 1

Screws & Fasteners SEELNUTS 10-32 THREAD

10-32 AJ 6
APM HEXSEAL
1: £2.46
75In Stock

Mfr. Part No.
10-32 AJ 6

Mouser Part No
608-10-32AJ6

Screws & Fasteners SEELNUTS 10-32 THREAD

75In Stock

£2.46

£2.08

£1.54

Min.: 1
Mult.: 1

Screws & Fasteners SEELNUTS 6-32 THREAD

6-32 AJ 6
APM HEXSEAL
1: £2.51
224In Stock

Mfr. Part No.
6-32 AJ 6

Mouser Part No
608-6-32AJ6

Screws & Fasteners SEELNUTS 6-32 THREAD

224In Stock

£2.51

£2.15

£2.01

£1.85

View

Min.: 1
Mult.: 1

Screws & Fasteners 1/4"-20X3/4", Phillips Pan Head, 18-8 Stainless Steel with Silicone O-Ring, Seal Screw

R1/4-20X3/4 2701
APM HEXSEAL
1: £0.952
185In Stock

Mfr. Part No.
R1/4-20X3/4 2701

Mouser Part No
608-R1/4-20X3/4

Screws & Fasteners 1/4"-20X3/4", Phillips Pan Head, 18-8 Stainless Steel with Silicone O-Ring, Seal Screw

185In Stock

£0.952

£0.834

£0.78

£0.738

View

Min.: 1
Mult.: 1

Screws & Fasteners 1/4"-20X3/8", Phillips Pan Head, 18-8 Stainless Steel with Silicone O-Ring, Seal Screw

R1/4-20X3/8 2701
APM HEXSEAL
1: £0.796
114In Stock

Mfr. Part No.
R1/4-20X3/8 2701

Mouser Part No
608-R1/4-20X3/8

Screws & Fasteners 1/4"-20X3/8", Phillips Pan Head, 18-8 Stainless Steel with Silicone O-Ring, Seal Screw

Datasheet

114In Stock

£0.796

£0.738

£0.637

£0.599

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: £0.899
102In 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

102In Stock

£0.899

£0.773

£0.725

£0.671

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: £0.638
790In 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

790In Stock

£0.638

£0.538

£0.504

£0.475

View

Min.: 1
Mult.: 1

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

R10-32X3/8 2701
APM HEXSEAL
1: £0.496
936In Stock

Mfr. Part No.
R10-32X3/8 2701

Mouser Part No
608-R10-32X3/8

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

Datasheet

936In Stock

£0.496

£0.426

£0.40

£0.376

View

Min.: 1
Mult.: 1

Screws & Fasteners 10-32X5/8", Phillips Pan Head, 18-8 Stainless Steel with Silicone O-Ring, Seal Screw

R10-32X5/8 2701
APM HEXSEAL
1: £0.608
250In Stock

Mfr. Part No.
R10-32X5/8 2701

Mouser Part No
608-R10-32X5/8

Screws & Fasteners 10-32X5/8", Phillips Pan Head, 18-8 Stainless Steel with Silicone O-Ring, Seal Screw

Datasheet

250In Stock

£0.608

£0.514

£0.483

£0.454

View

Min.: 1
Mult.: 1

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

R4-40X1 2701
APM HEXSEAL
1: £0.428
884In Stock

Mfr. Part No.
R4-40X1 2701

Mouser Part No
608-R4-40X1

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

Datasheet

884In Stock

£0.428

£0.324

£0.322

Min.: 1
Mult.: 1

Screws & Fasteners 4-40X3/4", Phillips Pan Head, 18-8 Stainless Steel with Silicone O-Ring, Seal Screw

R4-40X3/4 2701
APM HEXSEAL
1: £0.458
203In Stock

Mfr. Part No.
R4-40X3/4 2701

Mouser Part No
608-R4-40X3/4

Screws & Fasteners 4-40X3/4", Phillips Pan Head, 18-8 Stainless Steel with Silicone O-Ring, Seal Screw

Datasheet

203In Stock

£0.458

£0.389

£0.365

£0.343

View

Min.: 1
Mult.: 1

Screws & Fasteners 4-40X3/8", Phillips Pan Head, 18-8 Stainless Steel with Silicone O-Ring, Seal Screw

R4-40X3/8 2701
APM HEXSEAL
1: £0.421
726In Stock
1,500Expected 20/03/2026

Mfr. Part No.
R4-40X3/8 2701

Mouser Part No
608-R4-40X3/8

Screws & Fasteners 4-40X3/8", Phillips Pan Head, 18-8 Stainless Steel with Silicone O-Ring, Seal Screw

Datasheet

726In Stock

1,500Expected 20/03/2026

£0.421

£0.33

£0.286

£0.271

£0.258

Min.: 1
Mult.: 1

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

R4-40X5/16 2701
APM HEXSEAL
1: £0.398
449In Stock

Mfr. Part No.
R4-40X5/16 2701

Mouser Part No
608-R4-40X5/16

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

Datasheet

449In Stock

£0.398

£0.336

£0.314

£0.296

View

Min.: 1
Mult.: 1

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

R4-40X5/8 2701
APM HEXSEAL
1: £0.428
373In Stock

Mfr. Part No.
R4-40X5/8 2701

Mouser Part No
608-R4-40X5/8

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

Datasheet

373In Stock

£0.428

£0.362

£0.339

£0.319

View

Min.: 1
Mult.: 1

Screws & Fasteners 4-40X7/16", Phillips Pan Head, 18-8 Stainless Steel with Silicone O-Ring, Seal Screw

R4-40X7/16 2701
APM HEXSEAL
1: £0.398
350Expected 01/05/2026

Mfr. Part No.
R4-40X7/16 2701

Mouser Part No
608-R4-40X7/16

Screws & Fasteners 4-40X7/16", Phillips Pan Head, 18-8 Stainless Steel with Silicone O-Ring, Seal Screw

Datasheet

350Expected 01/05/2026

£0.398

£0.333

£0.311

£0.292

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: £0.601
245In Stock

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

245In Stock

£0.601

£0.437

£0.418

£0.372

View

Min.: 1
Mult.: 1

Screws & Fasteners 6-32X1", Phillips Pan Head, 18-8 Stainless Steel with Silicone O-Ring, Seal Screw

R6-32X1 2701
APM HEXSEAL
1: £0.503
76In Stock
150Expected 03/03/2026

Mfr. Part No.
R6-32X1 2701

Mouser Part No
608-R6-32X1

Screws & Fasteners 6-32X1", Phillips Pan Head, 18-8 Stainless Steel with Silicone O-Ring, Seal Screw

Datasheet

76In Stock

150Expected 03/03/2026

£0.503

£0.422

£0.40

£0.369

View

Min.: 1
Mult.: 1

Screws & Fasteners 6-32X1/2", Phillips Pan Head, 18-8 Stainless Steel with Silicone O-Ring, Seal Screw

R6-32X1/2 2701
APM HEXSEAL
1: £0.428
456In Stock

Mfr. Part No.
R6-32X1/2 2701

Mouser Part No
608-R6-32X1/2

Screws & Fasteners 6-32X1/2", Phillips Pan Head, 18-8 Stainless Steel with Silicone O-Ring, Seal Screw

Datasheet

456In Stock

£0.428

£0.397

£0.343

£0.323

View

Min.: 1
Mult.: 1

Screws & Fasteners 6-32X1/4", Phillips Pan Head, 18-8 Stainless Steel with Silicone O-Ring, Seal Screw

R6-32X1/4 2701
APM HEXSEAL
1: £0.465
849In Stock

Mfr. Part No.
R6-32X1/4 2701

Mouser Part No
608-R6-32X1/4

Screws & Fasteners 6-32X1/4", Phillips Pan Head, 18-8 Stainless Steel with Silicone O-Ring, Seal Screw

Datasheet

849In Stock

£0.465

£0.365

£0.316

£0.299

£0.285

Min.: 1
Mult.: 1

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

R6-32X3/8 2701
APM HEXSEAL
1: £0.413
1,858In Stock

Mfr. Part No.
R6-32X3/8 2701

Mouser Part No
608-R6-32X3/8

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

Datasheet

1,858In Stock

£0.413

£0.33

£0.286

£0.271

£0.258

Min.: 1
Mult.: 1

Screws & Fasteners 6-32X5/16", Phillips Pan Head, 18-8 Stainless Steel with Silicone O-Ring, Seal Screw

R6-32X5/16 2701
APM HEXSEAL
1: £0.413
377In Stock

Mfr. Part No.
R6-32X5/16 2701

Mouser Part No
608-R6-32X5/16

Screws & Fasteners 6-32X5/16", Phillips Pan Head, 18-8 Stainless Steel with Silicone O-Ring, Seal Screw

Datasheet

377In Stock

£0.413

£0.347

£0.325

£0.305

View

Min.: 1
Mult.: 1

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: £0.443
874In 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

874In Stock

£0.443

£0.373

£0.347

£0.327

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: £0.496
158In 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

158In Stock

£0.496

£0.421

£0.395

£0.373

View

Min.: 1
Mult.: 1

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

R8-32X3/8 2701
APM HEXSEAL
1: £0.436
674In Stock

Mfr. Part No.
R8-32X3/8 2701

Mouser Part No
608-R8-32X3/8

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

Datasheet

674In Stock

£0.436

£0.417

£0.357

£0.336

View

Min.: 1
Mult.: 1