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.

Results: 152
Select Image Part #
 Mfr.
Description Datasheet Availability Pricing (EUR) Filter the results in the table by unit price based on your quantity.
Qty. RoHS ECAD Model Product
Type
Thread Size
Length
Material
Plating
Screw Head
APM HEXSEAL Screws & Fasteners 2-562X3/16", Phillips Pan Head, 18-8 Stainless Steel with Silicone O-Ring, Seal Screw 376In Stock
Min.: 1
Mult.: 1

Screws Self Sealing 2-56 3/16 in Stainless Steel Phillips
APM HEXSEAL Screws & Fasteners 4-40X5/16", Phillips Pan Head, 18-8 Stainless Steel with Fluoro-Silicone O-Ring, Seal Screw
Datasheet
6.295In Stock
Min.: 1
Mult.: 1

Screws Self Sealing 4-40 5/16 in Stainless Steel Passivated Phillips
APM HEXSEAL Screws & Fasteners SEELSKREW FH REC 4-40 THD 5/16 5.345In Stock
Min.: 1
Mult.: 1

Screws Self Sealing 4-40 5/16 in Stainless Steel Phillips
APM HEXSEAL Screws & Fasteners 220In Stock
Min.: 1
Mult.: 1

Screws Self Sealing 6-32 1/4 in Stainless Steel Passivated Slotted
APM HEXSEAL Screws & Fasteners 1.502In Stock
4.350Expected 8/14/2026
Min.: 1
Mult.: 1

Screws Self Sealing 4-40 3/8 in Stainless Steel Phillips
APM HEXSEAL Screws & Fasteners Screws and Fasteners 308In Stock
Min.: 1
Mult.: 1

Screws Self Sealing 8-32 1/2 in Stainless Steel Phillips
APM HEXSEAL Screws & Fasteners SEELSKREW MT PH SLOT M3 X .5 THD 12MM 1.132In Stock
Min.: 1
Mult.: 1

Screws Self Sealing M3 12 mm Stainless Steel Passivated Slotted
APM HEXSEAL Screws & Fasteners SEELSKREW MT PH SLOT M3 X .5 THD 20MM 553In Stock
Min.: 1
Mult.: 1

Screws Self Sealing M3 20 mm Stainless Steel Passivated Slotted
APM HEXSEAL Screws & Fasteners 2-562X3/8", Phillips Pan Head, 18-8 Stainless Steel with Silicone O-Ring, Seal Screw
Datasheet
367In Stock
Min.: 1
Mult.: 1

Screws Self Sealing 2-56 3/8 in Stainless Steel Passivated Phillips
APM HEXSEAL Screws & Fasteners 100In Stock
Min.: 1
Mult.: 1

Screws Phillips Screw 8-32 3/8 in Steel Passivated Phillips
APM HEXSEAL Screws & Fasteners SEELSKREW STD PH REC 1/4-20 THD 1" LG 25In Stock
Min.: 1
Mult.: 1

Screws Self Sealing 1/4-20 1 in Stainless Steel Passivated Phillips
APM HEXSEAL Screws & Fasteners 10-32X7/8", Phillips Pan Head, 18-8 Stainless Steel with Silicone O-Ring, Seal Screw
Datasheet
25In Stock
Min.: 1
Mult.: 1

Screws Self Sealing 10-32 7/8 in Stainless Steel Passivated Phillips
APM HEXSEAL Screws & Fasteners SCR PAN STL sT m3X25 PHIL SELF SEAL 260In Stock
Min.: 1
Mult.: 1

Screws Phillips Screw M3 25 mm Steel Phillips
APM HEXSEAL Screws & Fasteners 189In Stock
200Expected 8/4/2026
Min.: 1
Mult.: 1

Screws Self Sealing 4-40 3/8 in Stainless Steel Phillips
APM HEXSEAL Screws & Fasteners SEELSKREW MT PH SLOT M3 X .5 THD 8MM 209In Stock
Min.: 1
Mult.: 1

Screws Self Sealing Slotted
APM HEXSEAL Screws & Fasteners M2.5X6MM, Phillips Pan Head, 18-8 Stainless Steel with Silicone O-Ring, Seal Screw 721In Stock
2.850Expected 8/21/2026
Min.: 1
Mult.: 1

M2.5 6 mm
APM HEXSEAL Screws & Fasteners 2-562X5/16", Phillips Pan Head, 18-8 Stainless Steel with Silicone O-Ring, Seal Screw
Datasheet
60In Stock
Min.: 1
Mult.: 1

Screws Self Sealing 2-56 5/16 in Stainless Steel Passivated Phillips
APM HEXSEAL Screws & Fasteners METRIC PAN HEAD WITH SLOTTED DRIVE 6MM 1.982In Stock
Min.: 1
Mult.: 1

Screws Self Sealing M3 6 mm Stainless Steel Passivated Slotted
APM HEXSEAL Screws & Fasteners 4-40X9/16", Phillips Pan Head, 18-8 Stainless Steel with Silicone O-Ring, Seal Screw
Datasheet
3.360In Stock
Min.: 1
Mult.: 1

Screws Self Sealing 4-40 9/16 in Stainless Steel Passivated Phillips
APM HEXSEAL Screws & Fasteners 10-24X7/8", Phillips Pan Head, 18-8 Stainless Steel with Silicone O-Ring, Seal Screw
Datasheet
27In Stock
Min.: 1
Mult.: 1

Screws Self Sealing 10-24 7/8 in Stainless Steel Passivated Phillips
APM HEXSEAL Screws & Fasteners 2-562X1", Phillips Pan Head, 18-8 Stainless Steel with Silicone O-Ring, Seal Screw 16In Stock
Min.: 1
Mult.: 1

Screws Self Sealing 2-56 1 in Stainless Steel Passivated Phillips
APM HEXSEAL Screws & Fasteners SEELSKREW FLATHEAD W/SILICON RBR O-RING 94In Stock
Min.: 1
Mult.: 1

O-Rings
APM HEXSEAL Screws & Fasteners 1/4-20X1" 18-8 Stainless Steel Self-Seal Silicone O-Ring, Hex Cap Screw
Datasheet
27In Stock
Min.: 1
Mult.: 1

Bolts Self Sealing 1/4-20 1 in Steel Passivated Hex
APM HEXSEAL Screws & Fasteners 10-24X9/16", Phillips Pan Head, 18-8 Stainless Steel with Silicone O-Ring, Seal Screw
Datasheet
12In Stock
Min.: 1
Mult.: 1

Screws Self Sealing 10-24 9/16 in Stainless Steel Passivated Phillips
APM HEXSEAL Screws & Fasteners 10-24X5/8", Phillips Pan Head, 18-8 Stainless Steel with Silicone O-Ring, Seal Screw 40In Stock
Min.: 1
Mult.: 1

Screws Self Sealing 10-24 5/8 in Stainless Steel Passivated Phillips