Electromechanical – Mouser Singapore

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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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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (SGD) Filter the results in the table by unit price based on your quantity.	Qty.
Screws & Fasteners M2.5X6MM, Phillips Pan Head, 18-8 Stainless Steel with Silicone O-Ring, Seal Screw RM2.5x6MM 2701 APM HEXSEAL 1: $1.36 5,616In Stock	Mfr. Part No. RM2.5x6MM 2701 Mouser Part No 608-RM2.5X6MM2701	APM HEXSEAL	Screws & Fasteners M2.5X6MM, Phillips Pan Head, 18-8 Stainless Steel with Silicone O-Ring, Seal Screw		5,616In Stock	$1.36 $1.06 $0.824 $0.792 View $0.751 $0.714 $0.691 $0.664	Min.: 1 Mult.: 1
Screws & Fasteners SEELSKREW FH REC 4-40 THD 5/16 SFR4-40X5/16 2701 APM HEXSEAL 1: $1.20 4,243In Stock	Mfr. Part No. SFR4-40X5/16 2701 Mouser Part No 608-SFR440X5162701	APM HEXSEAL	Screws & Fasteners SEELSKREW FH REC 4-40 THD 5/16 Learn More about APM HEXSEAL self sealing hardware		4,243In Stock	$1.20 $0.918 $0.836 $0.737 View $0.714 $0.641 $0.626	Min.: 1 Mult.: 1
Screws & Fasteners SEELSKREW STD PH REC 4-40 THD 3/16"LG R4-40X3/16 2701 APM HEXSEAL 1: $1.20 7,911In Stock	Mfr. Part No. R4-40X3/16 2701 Mouser Part No 608-R4-40X3/162701	APM HEXSEAL	Screws & Fasteners SEELSKREW STD PH REC 4-40 THD 3/16"LG		7,911In Stock	$1.20 $0.947 $0.802 $0.737 View $0.681 $0.646 $0.613 $0.596 $0.568	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: $1.35 6,150In Stock	Mfr. Part No. R4-40X5/16 2615 Mouser Part No 608-R4-40X5/162615	APM HEXSEAL	Screws & Fasteners 4-40X5/16", Phillips Pan Head, 18-8 Stainless Steel with Fluoro-Silicone O-Ring, Seal Screw Learn More about APM HEXSEAL self sealing hardware	Datasheet	6,150In Stock	$1.35 $1.06 $0.964 $0.853 View $0.792 $0.751 $0.714 $0.691 $0.664	Min.: 1 Mult.: 1
Screws & Fasteners 10-32X7/8", Phillips Pan Head, 18-8 Stainless Steel with Silicone O-Ring, Seal Screw R10-32X7/8 2701 APM HEXSEAL 1: $2.03 25In Stock	Mfr. Part No. R10-32X7/8 2701 Mouser Part No 608-R10-32X7/8	APM HEXSEAL	Screws & Fasteners 10-32X7/8", Phillips Pan Head, 18-8 Stainless Steel with Silicone O-Ring, Seal Screw Learn More about APM HEXSEAL self sealing hardware	Datasheet	25In Stock	$2.03 $1.63 $1.37 $1.28 $0.896	Min.: 1 Mult.: 1
Screws & Fasteners R8-32x3/16 2701 APM HEXSEAL 1: $1.35 90In Stock	Mfr. Part No. R8-32x3/16 2701 Mouser Part No 608-R8-32X3/162701	APM HEXSEAL	Screws & Fasteners		90In Stock	$1.35 $1.05 $0.957 $0.843 View $0.781 $0.738 $0.702 $0.681 $0.65	Min.: 1 Mult.: 1
Screws & Fasteners SCR PAN STL sT m3X25 PHIL SELF SEAL RM3X25MM 2701 APM HEXSEAL 1: $2.58 253In Stock 470On Order	Mfr. Part No. RM3X25MM 2701 Mouser Part No 608-RM3X25MM2701	APM HEXSEAL	Screws & Fasteners SCR PAN STL sT m3X25 PHIL SELF SEAL		253In Stock 470On Order On Order Ship Dates Mfr. No: RM3X25MM 2701 Stock: 253 Can Dispatch Immediately On Order: 20 Pending 450 Expected 20/11/2026 Factory Lead Time: 5 Weeks	$2.58 $2.08 $1.75 $1.63 $1.20	Min.: 1 Mult.: 1
Screws & Fasteners SFR4-40 x 3/8 2615 APM HEXSEAL 1: $1.47 64In Stock 1,000Expected 9/11/2026	Mfr. Part No. SFR4-40 x 3/8 2615 Mouser Part No 608-SFR4-40X382615	APM HEXSEAL	Screws & Fasteners		64In Stock 1,000Expected 9/11/2026	$1.47 $1.15 $1.05 $0.93 View $0.862 $0.819 $0.779 $0.752 $0.724	Min.: 1 Mult.: 1
Screws & Fasteners SEELSKREW MT PH SLOT M3 X .5 THD 8MM SM3X8MM-2701 APM HEXSEAL 1: $1.03 159In Stock	Mfr. Part No. SM3X8MM-2701 Mouser Part No 608-SM3X8MM-2701	APM HEXSEAL	Screws & Fasteners SEELSKREW MT PH SLOT M3 X .5 THD 8MM		159In Stock	$1.03 $0.806 $0.736 $0.649 View $0.60 $0.568 $0.54 $0.524 $0.46	Min.: 1 Mult.: 1
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: $1.62 292In Stock	Mfr. Part No. R2-56X3/16 2701 Mouser Part No 608-R2-56X3/162701	APM HEXSEAL	Screws & Fasteners 2-562X3/16", Phillips Pan Head, 18-8 Stainless Steel with Silicone O-Ring, Seal Screw		292In Stock	$1.62 $1.27 $1.16 $1.02 View $0.994 $0.933 $0.908 $0.892 $0.874	Min.: 1 Mult.: 1
Screws & Fasteners SEELSKREW MT PH SLOT M3 X .5 THD 20MM SM3X20MM-2701 APM HEXSEAL 1: $1.40 279In Stock 550Expected 13/11/2026	Mfr. Part No. SM3X20MM-2701 Mouser Part No 608-SM3X20MM-2701	APM HEXSEAL	Screws & Fasteners SEELSKREW MT PH SLOT M3 X .5 THD 20MM Learn More about APM HEXSEAL self sealing hardware		279In Stock 550Expected 13/11/2026	$1.40 $1.09 $0.849 $0.832 View $0.808 $0.787 $0.774 $0.759	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: $1.62 297In Stock	Mfr. Part No. R2-56X3/8 2701 Mouser Part No 608-R2-56X3/8	APM HEXSEAL	Screws & Fasteners 2-562X3/8", Phillips Pan Head, 18-8 Stainless Steel with Silicone O-Ring, Seal Screw Learn More about APM HEXSEAL self sealing hardware	Datasheet	297In Stock	$1.62 $1.31 $1.11 $1.02 View $0.891 $0.743	Min.: 1 Mult.: 1
Screws & Fasteners SFR832X3/8 2701 APM HEXSEAL 1: $1.22 100In Stock	Mfr. Part No. SFR832X3/8 2701 Mouser Part No 608-SFR832X3/8	APM HEXSEAL	Screws & Fasteners		100In Stock	$1.22 $0.953 $0.80 $0.781 View $0.749 $0.728 $0.71 $0.699 $0.68	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: $4.45 23In Stock 50Expected 12/11/2026	Mfr. Part No. ST1/4-20X1 2701 Mouser Part No 608-ST1/4-20X1	APM HEXSEAL	Screws & Fasteners 1/4-20X1" 18-8 Stainless Steel Self-Seal Silicone O-Ring, Hex Cap Screw Learn More about APM HEXSEAL self sealing hardware	Datasheet	23In Stock 50Expected 12/11/2026	$4.45 $3.55 $2.76 $2.75 View $2.67 $2.61 $2.56 $2.50	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: $1.62 297In Stock	Mfr. Part No. R2-56X3/4 2701 Mouser Part No 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 about APM HEXSEAL self sealing hardware		297In Stock	$1.62 $1.27 $0.972 $0.96 View $0.933 $0.908 $0.892 $0.874	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: $1.62 1,060In Stock	Mfr. Part No. R2-56X5/16 2701 Mouser Part No 608-R2-56X5/16	APM HEXSEAL	Screws & Fasteners 2-562X5/16", Phillips Pan Head, 18-8 Stainless Steel with Silicone O-Ring, Seal Screw Learn More about APM HEXSEAL self sealing hardware	Datasheet	1,060In Stock	$1.62 $1.27 $1.16 $1.02 View $0.96 $0.933 $0.908 $0.892 $0.874	Min.: 1 Mult.: 1
Screws & Fasteners METRIC PAN HEAD WITH SLOTTED DRIVE 6MM SM3X6MM-2701 APM HEXSEAL 1: $1.03 1,721In Stock	Mfr. Part No. SM3X6MM-2701 Mouser Part No 608-SM3X6MM-2701	APM HEXSEAL	Screws & Fasteners METRIC PAN HEAD WITH SLOTTED DRIVE 6MM Learn More about APM HEXSEAL self sealing hardware		1,721In Stock	$1.03 $0.806 $0.736 $0.649 View $0.635 $0.567 $0.554	Min.: 1 Mult.: 1
Screws & Fasteners S/6-32X1/4 2701 APM HEXSEAL 1: $1.01 146In Stock	Mfr. Part No. S/6-32X1/4 2701 Mouser Part No 608-S/6-32X1/4	APM HEXSEAL	Screws & Fasteners Learn More about APM HEXSEAL self sealing hardware		146In Stock	$1.01 $0.718 $0.654 $0.574 View $0.53 $0.515 $0.479 $0.466 $0.452	Min.: 1 Mult.: 1
Screws & Fasteners SFR4-40 x 3/8 2701 APM HEXSEAL 1: $0.993 3,957In Stock	Mfr. Part No. SFR4-40 x 3/8 2701 Mouser Part No 608-SFR4-40X3-82701	APM HEXSEAL	Screws & Fasteners		3,957In Stock	$0.993 $0.77 $0.74 $0.575 $0.548	Min.: 1 Mult.: 1
Screws & Fasteners SEELSKREW MT PH SLOT M3 X .5 THD 12MM SM3X12MM-2701 APM HEXSEAL 1: $1.10 511In Stock 1,000Expected 13/11/2026	Mfr. Part No. SM3X12MM-2701 Mouser Part No 608-SM3X12MM-2701	APM HEXSEAL	Screws & Fasteners SEELSKREW MT PH SLOT M3 X .5 THD 12MM Learn More about APM HEXSEAL self sealing hardware		511In Stock 1,000Expected 13/11/2026	$1.10 $0.986 $0.564 $0.548 $0.481	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: $1.33 3,230In Stock	Mfr. Part No. R4-40X9/16 2701 Mouser Part No 608-R4-40X9/16	APM HEXSEAL	Screws & Fasteners 4-40X9/16", Phillips Pan Head, 18-8 Stainless Steel with Silicone O-Ring, Seal Screw Learn More about APM HEXSEAL self sealing hardware	Datasheet	3,230In Stock	$1.33 $1.03 $0.855 $0.80 View $0.764 $0.724 $0.687 $0.666 $0.636	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: $1.60 12In Stock	Mfr. Part No. R10-24X9/16 2701 Mouser Part No 608-R10-24X9/16	APM HEXSEAL	Screws & Fasteners 10-24X9/16", Phillips Pan Head, 18-8 Stainless Steel with Silicone O-Ring, Seal Screw Learn More about APM HEXSEAL self sealing hardware	Datasheet	12In Stock	$1.60 $1.30 $1.10 $1.01 View $0.942 $0.894 $0.85 $0.821 $0.79	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: $1.75 40In Stock	Mfr. Part No. R10-24X5/8 2701 Mouser Part No 608-R10-24X5/8	APM HEXSEAL	Screws & Fasteners 10-24X5/8", Phillips Pan Head, 18-8 Stainless Steel with Silicone O-Ring, Seal Screw Learn More about APM HEXSEAL self sealing hardware		40In Stock	$1.75 $1.41 $1.20 $1.11 $0.764	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: $2.03 27In Stock	Mfr. Part No. R10-24X7/8 2701 Mouser Part No 608-R10-24X7/8	APM HEXSEAL	Screws & Fasteners 10-24X7/8", Phillips Pan Head, 18-8 Stainless Steel with Silicone O-Ring, Seal Screw Learn More about APM HEXSEAL self sealing hardware	Datasheet	27In Stock	$2.03 $1.63 $1.37 $1.28 $0.896	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: $1.62 16In Stock	Mfr. Part No. R2-56X1 2701 Mouser Part No 608-R2-56X1	APM HEXSEAL	Screws & Fasteners 2-562X1", Phillips Pan Head, 18-8 Stainless Steel with Silicone O-Ring, Seal Screw Learn More about APM HEXSEAL self sealing hardware		16In Stock	$1.62 $1.27 $0.972 $0.96 View $0.933 $0.908 $0.892 $0.874	Min.: 1 Mult.: 1

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Self-Sealing Hardware

Types of Electromechanical