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: 150
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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 8-32X7/16", Phillips Pan Head, 18-8 Stainless Steel with Silicone O-Ring, Seal Screw
Datasheet
31In Stock
Min.: 1
Mult.: 1

Screws Self Sealing 8-32 7/16 in Stainless Steel Passivated Phillips
APM HEXSEAL Screws & Fasteners 8-32X7/8", Phillips Pan Head, 18-8 Stainless Steel with Silicone O-Ring, Seal Screw
Datasheet
758In Stock
Min.: 1
Mult.: 1

Screws Self Sealing 8-32 7/8 in Stainless Steel Passivated Phillips
APM HEXSEAL Screws & Fasteners SCR PAN STL ST 3X12 PHIL SELF SEAL
Datasheet
416In Stock
5.350Expected 3/11/2026
Min.: 1
Mult.: 1

Screws Phillips Screw M3 12 mm Phillips
APM HEXSEAL Screws & Fasteners SEELSKREW MT PH REC M4 X 0.7 THD 20MM LG
Datasheet
1.567In Stock
Min.: 1
Mult.: 1

Screws Self Sealing M4 20 mm Stainless Steel Phillips
APM HEXSEAL Screws & Fasteners SEELSKREW FH REC 4-40 THD 1/4" NBR 3.728In Stock
Min.: 1
Mult.: 1

Screws Self Sealing 4-40 1/4 in Stainless Steel Phillips
APM HEXSEAL Screws & Fasteners 567In Stock
Min.: 1
Mult.: 1

Screws Self Sealing 6-32 3/8 in Stainless Steel Phillips
APM HEXSEAL Screws & Fasteners SEELNUTS 5/16-24 THREAD 25In Stock
Min.: 1
Mult.: 1

Nuts Self Sealing 5/16-24 17/64 in Steel Zinc
APM HEXSEAL Screws & Fasteners 1/4"-20X1/2", Phillips Pan Head, 18-8 Stainless Steel with Silicone O-Ring, Seal Screw
Datasheet
7In Stock
Min.: 1
Mult.: 1

Screws Self Sealing 1/4-20 1/2 in Stainless Steel Passivated Phillips
APM HEXSEAL Screws & Fasteners 10-32X1", Phillips Pan Head, 18-8 Stainless Steel with Silicone O-Ring, Seal Screw
Datasheet
56In Stock
Min.: 1
Mult.: 1

Screws Self Sealing 10-32 1 in Stainless Steel Passivated Phillips
APM HEXSEAL Screws & Fasteners 2-562X1/4", Phillips Pan Head, 18-8 Stainless Steel with Silicone O-Ring, Seal Screw
Datasheet
646In Stock
Min.: 1
Mult.: 1

Screws Self Sealing 2-56 1/4 in Stainless Steel Passivated Phillips
APM HEXSEAL Screws & Fasteners 6-32X3/4", Phillips Pan Head, 18-8 Stainless Steel with Silicone O-Ring, Seal Screw
Datasheet
862In Stock
Min.: 1
Mult.: 1

Screws Self Sealing 6-32 3/4 in Stainless Steel Passivated Phillips
APM HEXSEAL Screws & Fasteners 8-32X5/8", Phillips Flat Head, 18-8 Stainless Steel with Silicone O-Ring, Seal Screw 39In Stock
Min.: 1
Mult.: 1

Screws Self Sealing 8-32 5/8 in Stainless Steel Phillips
APM HEXSEAL Screws & Fasteners 2-562X1/2", Phillips Pan Head, 18-8 Stainless Steel with Silicone O-Ring, Seal Screw
Datasheet
8In Stock
Min.: 1
Mult.: 1

Screws Self Sealing 2-56 1/2 in Stainless Steel Passivated Phillips
APM HEXSEAL S4-40X1/2 2701
APM HEXSEAL Screws & Fasteners 4-40X1/2", Slotted Pan Head, 18-8 Stainless Steel with Silicone O-Ring, Seal Screw 282In Stock
Min.: 1
Mult.: 1

Screws
APM HEXSEAL Screws & Fasteners 10-24X7/16", Phillips Pan Head, 18-8 Stainless Steel with Silicone O-Ring, Seal Screw
Datasheet
87In Stock
Min.: 1
Mult.: 1

Screws Self Sealing 10-24 7/16 in Stainless Steel Passivated Phillips
APM HEXSEAL Screws & Fasteners 2-562X3/4", Phillips Pan Head, 18-8 Stainless Steel with Silicone O-Ring, Seal Screw 611In Stock
Min.: 1
Mult.: 1

Screws Self Sealing 2-56 3/4 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 Standard FlatHead w/ Cross Recess Drive 200In Stock
Min.: 1
Mult.: 1

APM HEXSEAL Screws & Fasteners SEELSKREW FH REC 4-40 THD 5/16
4.912On Order
Min.: 1
Mult.: 1

Screws Self Sealing 4-40 5/16 in Stainless Steel Phillips
APM HEXSEAL Screws & Fasteners 4-40X3/8", Phillips Pan Head, 18-8 Stainless Steel with Silicone O-Ring, Seal Screw
Datasheet
2.298On Order
Min.: 1
Mult.: 1

Screws Self Sealing 4-40 3/8 in Stainless Steel Passivated Phillips
APM HEXSEAL Screws & Fasteners 4-40X7/16", Phillips Pan Head, 18-8 Stainless Steel with Silicone O-Ring, Seal Screw
Datasheet
350Expected 5/1/2026
Min.: 1
Mult.: 1

Screws Self Sealing 4-40 7/16 in Stainless Steel Passivated Phillips
APM HEXSEAL Screws & Fasteners 8-32X1/4", Phillips Pan Head, 18-8 Stainless Steel with Silicone O-Ring, Seal Screw
Datasheet
514On Order
Min.: 1
Mult.: 1

Screws Self Sealing 8-32 1/4 in Stainless Steel Passivated Phillips
APM HEXSEAL Screws & Fasteners Screws and Fasteners
343On Order
Min.: 1
Mult.: 1

Screws Self Sealing 8-32 1/2 in Stainless Steel Phillips
APM HEXSEAL Screws & Fasteners 1/4"-20X7/8", Phillips Pan Head, 18-8 Stainless Steel with Silicone O-Ring, Seal Screw
Datasheet
1In Stock
Min.: 1
Mult.: 1

Screws Self Sealing 1/4-20 7/8 in Stainless Steel Passivated Phillips
APM HEXSEAL Screws & Fasteners SEELSKREW 6-32 X 5/8 WITH VITON O-RING
4Expected 3/4/2026
Min.: 1
Mult.: 1

Screws Self Sealing 6-32 5/8 in Stainless Steel Passivated Phillips