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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: 153

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Part #

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: NT$21.15
377In Stock
1,000Expected 9/14/2026

Mfr. Part #
R6-32X3/8 2701

Mouser Part #
608-R6-32X3/8

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

Datasheet

377In Stock

1,000Expected 9/14/2026

NT$21.15

NT$17.78

NT$16.63

NT$15.67

View

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: NT$21.15
703In Stock

Mfr. Part #
R6-32X5/16 2701

Mouser Part #
608-R6-32X5/16

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

Datasheet

703In Stock

NT$21.15

NT$17.78

NT$16.63

NT$15.67

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: NT$27.96
854In Stock

Mfr. Part #
R6-32X5/8 2701

Mouser Part #
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

NT$27.96

NT$23.80

NT$22.33

NT$21.01

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: NT$29.76
27In Stock

Mfr. Part #
R6-32X7/8 2701

Mouser Part #
608-R6-32X7/8

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

27In Stock

NT$29.76

NT$25.31

NT$23.73

NT$22.33

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: NT$21.87
1,231In Stock

Mfr. Part #
R8-32X1/4 2701

Mouser Part #
608-R8-32X1/4

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

Datasheet

1,231In Stock

NT$21.87

NT$18.57

NT$17.35

NT$16.35

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: NT$32.27
102In Stock

Mfr. Part #
R8-32X3/4 2701

Mouser Part #
608-R8-32X3/4

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

Datasheet

102In Stock

NT$32.27

NT$27.50

NT$25.81

NT$24.31

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: NT$27.96
136In Stock

Mfr. Part #
R8-32X5/16 2701

Mouser Part #
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

NT$27.96

NT$23.80

NT$22.33

NT$21.01

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: NT$29.04
111In Stock

Mfr. Part #
R8-32X7/16 2701

Mouser Part #
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

NT$29.04

NT$24.56

NT$23.02

NT$21.69

View

Min.: 1
Mult.: 1

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

RM4X20MM-2701
APM HEXSEAL
1: NT$23.30
1,141In Stock

Mfr. Part #
RM4X20MM-2701

Mouser Part #
608-RM4X20MM2701

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

Datasheet

1,141In Stock

NT$23.30

NT$21.94

NT$18.79

NT$17.67

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: NT$25.10
2,460In Stock

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

Mouser Part #
608-SFR4-40X1/42701

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

2,460In Stock

NT$25.10

NT$19.36

NT$17.64

NT$15.52

View

Min.: 1
Mult.: 1

Screws & Fasteners SEELNUTS 5/16-24 THREAD

5/16-24 AJ 6
APM HEXSEAL
1: NT$133.00
15In Stock

Mfr. Part #
5/16-24 AJ 6

Mouser Part #
608-5/16-24AJ6

Screws & Fasteners SEELNUTS 5/16-24 THREAD

15In Stock

NT$133.00

NT$124.76

NT$108.98

NT$103.25

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: NT$55.93
65In Stock

Mfr. Part #
R1/4-20X5/8 2701

Mouser Part #
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

NT$55.93

NT$48.04

NT$44.81

NT$42.66

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: NT$37.28
3In Stock

Mfr. Part #
R10-32X1 2701

Mouser Part #
608-R10-32X1

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

Datasheet

3In Stock

NT$37.28

NT$31.87

NT$29.93

NT$28.21

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: NT$39.79
296In Stock

Mfr. Part #
R10-32X3/4 2701

Mouser Part #
608-R10-32X3/4

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

Datasheet

296In Stock

NT$39.79

NT$34.02

NT$31.98

NT$30.15

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: NT$31.55
30In Stock

Mfr. Part #
R8-32X5/8 2701

Mouser Part #
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

NT$31.55

NT$26.78

NT$25.13

NT$23.66

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: NT$33.70
758In Stock

Mfr. Part #
R8-32X7/8 2701

Mouser Part #
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

NT$33.70

NT$31.62

NT$27.17

NT$25.63

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: NT$27.25
29In Stock

Mfr. Part #
SFR8-32X5/8 2701

Mouser Part #
608-SFR8-32X5/82701

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

29In Stock

NT$27.25

NT$23.73

NT$23.16

NT$22.94

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: NT$25.10
82In Stock

Mfr. Part #
S4-40X1/2 2701

Mouser Part #
608-S4-40X1/22701

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

82In Stock

NT$25.10

NT$19.36

NT$17.64

NT$15.02

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: NT$41.59
87In Stock

Mfr. Part #
R10-24X7/16 2701

Mouser Part #
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

NT$41.59

NT$33.52

NT$28.46

NT$26.24

NT$17.82

Min.: 1
Mult.: 1

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

R6-32X5/8-5701
APM HEXSEAL
1: NT$41.59
4In Stock
Factory Special Order

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

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

Factory Special Order

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

4In Stock

NT$41.59

View

Min.: 1
Mult.: 1

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

R4-40X3/16 2701
APM HEXSEAL
1: NT$31.55
10,970On Order

Mfr. Part #
R4-40X3/16 2701

Mouser Part #
608-R4-40X3/162701

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

10,970On Order

NT$31.55

NT$24.95

NT$21.15

NT$19.43

View

Min.: 1
Mult.: 1

Screws & Fasteners

SFR6-32 x 3/8 2701
APM HEXSEAL
1: NT$32.62
4,081On Order

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

Mouser Part #
608-SFR6-323/82701

Screws & Fasteners

4,081On Order

NT$32.62

NT$25.17

NT$19.07

NT$18.68

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: NT$42.30
41Expected 10/2/2026

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

Mouser Part #
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

41Expected 10/2/2026

NT$42.30

NT$36.21

NT$34.02

NT$32.09

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: NT$30.47
375Expected 9/21/2026

Mfr. Part #
R10-32X5/8 2701

Mouser Part #
608-R10-32X5/8

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

Datasheet

375Expected 9/21/2026

NT$30.47

NT$26.03

NT$24.41

NT$23.02

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: NT$42.66
160On Order

Mfr. Part #
R2-56X5/16 2701

Mouser Part #
608-R2-56X5/16

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

Datasheet

160On Order

NT$42.66

NT$33.41

NT$30.51

NT$27.00

View

Min.: 1
Mult.: 1