Screws & Fasteners – Mouser Canada

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

R8-32X7/16 2701
APM HEXSEAL
1: $1.11
81In Stock

Mfr. Part #
R8-32X7/16 2701

Mouser Part #
608-R8-32X7/16

APM HEXSEAL

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

Learn More

Datasheet

81In Stock

$1.11

$0.838

$0.801

$0.691

View

Min.: 1
Mult.: 1

Screws

Self Sealing

8-32

7/16 in

Stainless Steel

Passivated

Phillips

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: $1.12
758In Stock

Mfr. Part #
R8-32X7/8 2701

Mouser Part #
608-R8-32X7/8

APM HEXSEAL

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

Learn More

Datasheet

758In Stock

$1.12

$1.03

$0.85

$0.814

View

Min.: 1
Mult.: 1

Screws

Self Sealing

8-32

7/8 in

Stainless Steel

Passivated

Phillips

Screws & Fasteners SCR PAN STL ST 3X12 PHIL SELF SEAL

RM3X12MM-2701
APM HEXSEAL
1: $0.814
468In Stock
5,350Expected 2026-03-09

Mfr. Part #
RM3X12MM-2701

Mouser Part #
608-RM3X12MM2701

APM HEXSEAL

Screws & Fasteners SCR PAN STL ST 3X12 PHIL SELF SEAL

Datasheet

468In Stock

5,350Expected 2026-03-09

$0.814

$0.637

$0.551

$0.522

$0.503

Min.: 1
Mult.: 1

Screws

Phillips Screw

12 mm

Phillips

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

RM4X20MM-2701
APM HEXSEAL
1: $0.952
1,567In Stock

Mfr. Part #
RM4X20MM-2701

Mouser Part #
608-RM4X20MM2701

APM HEXSEAL

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

Learn More

Datasheet

1,567In Stock

$0.952

$0.76

$0.662

$0.628

$0.596

Min.: 1
Mult.: 1

Screws

Self Sealing

20 mm

Stainless Steel

Phillips

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

SFR4-40 X 1/4 2701
APM HEXSEAL
1: $0.906
3,828In Stock

Mfr. Part #
SFR4-40 X 1/4 2701

Mouser Part #
608-SFR4-40X1/42701

APM HEXSEAL

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

3,828In Stock

$0.906

$0.634

$0.507

$0.456

View

Min.: 1
Mult.: 1

Screws

Self Sealing

4-40

1/4 in

Stainless Steel

Phillips

Screws & Fasteners

SFR6-32 x 3/8 2701
APM HEXSEAL
1: $1.11
567In Stock

Mfr. Part #
SFR6-32 x 3/8 2701

Mouser Part #
608-SFR6-323/82701

APM HEXSEAL

Screws & Fasteners

567In Stock

$1.11

$0.939

$0.625

$0.599

$0.585

Min.: 1
Mult.: 1

Screws

Self Sealing

6-32

3/8 in

Stainless Steel

Phillips

Screws & Fasteners SEELNUTS 5/16-24 THREAD

5/16-24 AJ 6
APM HEXSEAL
1: $5.63
25In Stock

Mfr. Part #
5/16-24 AJ 6

Mouser Part #
608-5/16-24AJ6

APM HEXSEAL

Screws & Fasteners SEELNUTS 5/16-24 THREAD

Learn More

25In Stock

$5.63

$4.80

$4.51

$4.13

View

Min.: 1
Mult.: 1

Nuts

Self Sealing

5/16-24

17/64 in

Steel

Zinc

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: $1.72
7In Stock

Mfr. Part #
R1/4-20X1/2 2701

Mouser Part #
608-R1/4-20X1/2

APM HEXSEAL

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

Learn More

Datasheet

7In Stock

$1.72

$1.46

$1.37

$1.28

View

Min.: 1
Mult.: 1

Screws

Self Sealing

1/4-20

1/2 in

Stainless Steel

Passivated

Phillips

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

R10-32X1 2701
APM HEXSEAL
1: $1.50
56In Stock

Mfr. Part #
R10-32X1 2701

Mouser Part #
608-R10-32X1

APM HEXSEAL

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

Learn More

Datasheet

56In Stock

$1.50

$1.29

$1.21

$1.14

View

Min.: 1
Mult.: 1

Screws

Self Sealing

10-32

1 in

Stainless Steel

Passivated

Phillips

Screws & Fasteners 2-562X1/4", Phillips Pan Head, 18-8 Stainless Steel with Silicone O-Ring, Seal Screw

R2-56X1/4 2701
APM HEXSEAL
1: $0.86
646In Stock

Mfr. Part #
R2-56X1/4 2701

Mouser Part #
608-R2-56X1/4

APM HEXSEAL

Screws & Fasteners 2-562X1/4", Phillips Pan Head, 18-8 Stainless Steel with Silicone O-Ring, Seal Screw

Learn More

Datasheet

646In Stock

$0.86

$0.846

$0.717

$0.712

Min.: 1
Mult.: 1

Screws

Self Sealing

2-56

1/4 in

Stainless Steel

Passivated

Phillips

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: $0.952
862In Stock

Mfr. Part #
R6-32X3/4 2701

Mouser Part #
608-R6-32X3/4

APM HEXSEAL

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

Learn More

Datasheet

862In Stock

$0.952

$0.801

$0.749

$0.705

View

Min.: 1
Mult.: 1

Screws

Self Sealing

6-32

3/4 in

Stainless Steel

Passivated

Phillips

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: $1.17
39In Stock

Mfr. Part #
SFR8-32X5/8 2701

Mouser Part #
608-SFR8-32X5/82701

APM HEXSEAL

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

39In Stock

$1.17

$0.958

$0.878

$0.814

$0.657

Min.: 1
Mult.: 1

Screws

Self Sealing

8-32

5/8 in

Stainless Steel

Phillips

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

R2-56X1/2 2701
APM HEXSEAL
1: $1.63
8In Stock

Mfr. Part #
R2-56X1/2 2701

Mouser Part #
608-R2-56X1/2

APM HEXSEAL

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

Learn More

Datasheet

8In Stock

$1.63

$1.39

$1.18

$1.16

$1.05

Min.: 1
Mult.: 1

Screws

Self Sealing

2-56

1/2 in

Stainless Steel

Passivated

Phillips

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: $0.553
282In Stock

Mfr. Part #
S4-40X1/2 2701

Mouser Part #
608-S4-40X1/22701

APM HEXSEAL

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

282In Stock

$0.553

$0.525

$0.462

$0.45

View

Min.: 1
Mult.: 1

Screws

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: $1.29
87In Stock

Mfr. Part #
R10-24X7/16 2701

Mouser Part #
608-R10-24X7/16

APM HEXSEAL

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

Learn More

Datasheet

87In Stock

$1.29

$0.985

$0.835

$0.751

View

Min.: 1
Mult.: 1

Screws

Self Sealing

10-24

7/16 in

Stainless Steel

Passivated

Phillips

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: $2.27
615In Stock

Mfr. Part #
R2-56X3/4 2701

Mouser Part #
608-R2-56X3/4

APM HEXSEAL

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

Learn More

615In Stock

$2.27

$1.93

$1.73

$0.857

$0.838

Min.: 1
Mult.: 1

Screws

Self Sealing

2-56

3/4 in

Stainless Steel

Passivated

Phillips

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

SFR8-32X3/4-2701
APM HEXSEAL
1: $1.24
94In Stock

Mfr. Part #
SFR8-32X3/4-2701

Mouser Part #
608-SFR8-32X3/4-2701

APM HEXSEAL

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

94In Stock

$1.24

$0.938

$0.834

$0.729

View

Min.: 1
Mult.: 1

O-Rings

Screws & Fasteners Standard FlatHead w/ Cross Recess Drive

SFR4-40X1/2 2701 BLKOX
APM HEXSEAL
1: $0.844
200In Stock
Factory Special Order

Mfr. Part #
SFR4-40X1/2 2701 BLKOX

Mouser Part #
608-SFR4-40X1/2-2701

Factory Special Order

APM HEXSEAL

Screws & Fasteners Standard FlatHead w/ Cross Recess Drive

200In Stock

$0.844

$0.737

$0.626

View

Min.: 1
Mult.: 1

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

SFR4-40X5/16 2701
APM HEXSEAL
1: $0.921
4,912On Order

Mfr. Part #
SFR4-40X5/16 2701

Mouser Part #
608-SFR440X5162701

APM HEXSEAL

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

Learn More

4,912On Order

$0.921

$0.703

$0.597

$0.536

View

Min.: 1
Mult.: 1

Screws

Self Sealing

4-40

5/16 in

Stainless Steel

Phillips

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: $0.814
350Expected 2026-05-01

Mfr. Part #
R4-40X7/16 2701

Mouser Part #
608-R4-40X7/16

APM HEXSEAL

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

Learn More

Datasheet

350Expected 2026-05-01

$0.814

$0.68

$0.635

$0.596

View

Min.: 1
Mult.: 1

Screws

Self Sealing

4-40

7/16 in

Stainless Steel

Passivated

Phillips

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: $1.03
514On Order

Mfr. Part #
R8-32X1/4 2701

Mouser Part #
608-R8-32X1/4

APM HEXSEAL

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

Learn More

Datasheet

514On Order

$1.03

$0.772

$0.686

$0.60

View

Min.: 1
Mult.: 1

Screws

Self Sealing

8-32

1/4 in

Stainless Steel

Passivated

Phillips

Screws & Fasteners Screws and Fasteners

SFR8-32x1/2-2701
APM HEXSEAL
1: $1.11
246Expected 2026-03-12

Mfr. Part #
SFR8-32x1/2-2701

Mouser Part #
608-SFR832X1/22701

APM HEXSEAL

Screws & Fasteners Screws and Fasteners

246Expected 2026-03-12

$1.11

$0.844

$0.717

$0.643

View

Min.: 1
Mult.: 1

Screws

Self Sealing

8-32

1/2 in

Stainless Steel

Phillips

Screws & Fasteners 1/4"-20X7/8", Phillips Pan Head, 18-8 Stainless Steel with Silicone O-Ring, Seal Screw

R1/4-20X7/8 2701
APM HEXSEAL
1: $2.58
1In Stock

Mfr. Part #
R1/4-20X7/8 2701

Mouser Part #
608-R1/4-20X7/8

APM HEXSEAL

Screws & Fasteners 1/4"-20X7/8", Phillips Pan Head, 18-8 Stainless Steel with Silicone O-Ring, Seal Screw

Learn More

Datasheet

1In Stock

$2.58

$1.98

$1.66

$1.50

View

Min.: 1
Mult.: 1

Screws

Self Sealing

1/4-20

7/8 in

Stainless Steel

Passivated

Phillips

Screws & Fasteners SEELSKREW 6-32 X 5/8 WITH VITON O-RING

R6-32X5/8-5701
APM HEXSEAL
1: $1.29
4Expected 2026-03-04
Factory Special Order

Mfr. Part #
R6-32X5/8-5701

Mouser Part #
608-R6-32X5/8-5701

Factory Special Order

APM HEXSEAL

Screws & Fasteners SEELSKREW 6-32 X 5/8 WITH VITON O-RING

4Expected 2026-03-04

$1.29

View

Min.: 1
Mult.: 1

Screws

Self Sealing

6-32

5/8 in

Stainless Steel

Passivated

Phillips

Screws & Fasteners Screw

SFR4-40X1/2-7601
APM HEXSEAL
1: $0.537
220On Order

Mfr. Part #
SFR4-40X1/2-7601

Mouser Part #
608-SFR4-40X1/2-7601

APM HEXSEAL

Screws & Fasteners Screw

220On Order

$0.537

$0.536

$0.53

$0.496

$0.488

Min.: 1
Mult.: 1

Screws

Self-Sealing Hardware

Mouser Electronics®

Company

Resources

Support

7/64 in
1/8 in
3/16 in
7/32 in
6 mm
1/4 in
17/64 in
5/16 in
8 mm
3/8 in
10 mm
7/16 in
12 mm
0.5 in
1/2 in
35/64 in
9/16 in
21/34 in
5/8 in
3/4 in