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APEX offers full-service design, engineering and manufacturing to your specifications. Our custom fasteners have enjoyed great success supplying all types and sizes of businesses in most sectors of industry.
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Metric Tamper Resistant Socket Flat Head Sealing Screws

Metric Socket Flat Head Sealing Screw - Silicone O-Ring Sealing Screw Diagram

Metric Socket Flat Head sealing screws have a socket recess and is cone shaped for use in countersunk holes the flat top fits flush with the mated surface. Each Metric Socket Flat Head sealing screw is equipped with a unique, malleable and strong captive O-ring. This device delivers extraordinary results. The O-ring, which fits tightly and precisely in the groove under the screw head, acts as a total deterrent against external/internal contamination from air, water, gas and other materials. As a result, these screws will perform like never before, granting your most sensitive equipment unbeatable protection with 360 degrees of sealant while achieving metal-to-metal contact.

All parts are made from 18-8 Stainless Steel.

O-Ring Materials Available: Silicone (-SSS), Fluorosilicone (-FSS), Buna (-BSS), and Viton (-VSS).

Apex Part NumberThreadLengthHeadPart MaterialO-Ring
SEM03C008HPINFSEALSSSM38mmSocket Flat Head300 Stainless SteelSilicone
SEM03C010HPINFSEALSSSM310mmSocket Flat Head300 Stainless SteelSilicone
SEM03C012HPINFSEALSSSM312mmSocket Flat Head300 Stainless SteelSilicone
SEM03C016HPINFSEALSSSM316mmSocket Flat Head300 Stainless SteelSilicone
SEM04C006HPINFSEALSSSM46mmSocket Flat Head300 Stainless SteelSilicone
SEM04C010HPINFSEALSSSM410mmSocket Flat Head300 Stainless SteelSilicone
SEM04C012HPINFSEALSSSM412mmSocket Flat Head300 Stainless SteelSilicone
SEM04C018HPINFSEALSSSM418mmSocket Flat Head300 Stainless SteelSilicone
SEM04C020HPINFSEALSSSM420mmSocket Flat Head300 Stainless SteelSilicone
SEM04C025HPINFSEALSSSM425mmSocket Flat Head300 Stainless SteelSilicone
SEM05C008HPINFSEALSSSM58mmSocket Flat Head300 Stainless SteelSilicone
SEM05C010HPINFSEALSSSM510mmSocket Flat Head300 Stainless SteelSilicone
SEM05C012HPINFSEALSSSM512mmSocket Flat Head300 Stainless SteelSilicone
SEM05C016HPINFSEALSSSM516mmSocket Flat Head300 Stainless SteelSilicone
SEM05C020HPINFSEALSSSM520mmSocket Flat Head300 Stainless SteelSilicone
SEM05C025HPINFSEALSSSM525mmSocket Flat Head300 Stainless SteelSilicone
SEM06C012HPINFSEALSSSM612mmSocket Flat Head300 Stainless SteelSilicone
SEM06C016HPINFSEALSSSM616mmSocket Flat Head300 Stainless SteelSilicone
SEM06C020HPINFSEALSSSM620mmSocket Flat Head300 Stainless SteelSilicone
SEM06C025HPINFSEALSSSM625mmSocket Flat Head300 Stainless SteelSilicone


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APEX FASTENERS, Inc - 15858 Business Center Drive - Irwindale, CA 91706 USA
APEX Fasteners supplies standard and custom screws, nut retainers, shoulder screws, plastites and taptites, all types of rivets, spring steel fasteners and special stampings, sems screws in standard, fractional or metric to electronics, aviation and other OEM industries worldwide. ApexFasteners.com custom manufactures screw machine components for electronic enclosure hardware as well as cold forming and cold headed specials for assembly and production requirements.
Tel: (626) 962-2219 - info@apexfasteners.com
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