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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 6 Lobe Flat Head Sealing Screws

Metric 6 Lobe Flat Head Sealing Screw - Silicone O-Ring Sealing Screw Diagram

Metric 6 Lobe flat head screws have a 6 lobe recess and is cone shaped for use in countersunk holes the flat top fits flush with the mated surface. Each screw is equipped with a captive O-ring which is designed to fit various head styles. The O-ring sealing element acting as a total barrier against external or internal forces such as water, dirt, or air contaminants which can otherwise penetrate and ruin your system.

All parts are made from 18-8 Stainless Steel.

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

Apex Part NumberThreadLengthDriveHeadPart MaterialO-Ring
SEM03C006TFSEALSSSM36mmT-10Flat Head300 Stainless SteelSilicone
SEM03C008TFSEALSSSM38mmT-10Flat Head300 Stainless SteelSilicone
SEM03C010TFSEALSSSM310mmT-10Flat Head300 Stainless SteelSilicone
SEM03C012TFSEALSSSM312mmT-10Flat Head300 Stainless SteelSilicone
SEM03C016TFSEALSSSM316mmT-10Flat Head300 Stainless SteelSilicone
SEM3.5C008TFSEALSSSM3.58mmT-15Flat Head300 Stainless SteelSilicone
SEM3.5C010TFSEALSSSM3.510mmT-15Flat Head300 Stainless SteelSilicone
SEM3.5C012TFSEALSSSM3.512mmT-15Flat Head300 Stainless SteelSilicone
SEM3.5C020TFSEALSSSM3.520mmT-15Flat Head300 Stainless SteelSilicone
SEM3.5C025TFSEALSSSM3.525mmT-15Flat Head300 Stainless SteelSilicone
SEM04C010TFSEALSSSM410mmT-20Flat Head300 Stainless SteelSilicone
SEM04C012TFSEALSSSM412mmT-20Flat Head300 Stainless SteelSilicone
SEM04C016TFSEALSSSM416mmT-20Flat Head300 Stainless SteelSilicone
SEM04C020TFSEALSSSM420mmT-20Flat Head300 Stainless SteelSilicone
SEM04C025TFSEALSSSM425mmT-20Flat Head300 Stainless SteelSilicone
SEM05C010TFSEALSSSM510mmT-25Flat Head300 Stainless SteelSilicone
SEM05C012TFSEALSSSM512mmT-25Flat Head300 Stainless SteelSilicone
SEM05C016TFSEALSSSM516mmT-25Flat Head300 Stainless SteelSilicone
SEM05C020TFSEALSSSM520mmT-25Flat Head300 Stainless SteelSilicone
SEM05C025TFSEALSSSM525mmT-25Flat Head300 Stainless SteelSilicone
SEM06C012TFSEALSSSM612mmT-30Flat Head300 Stainless SteelSilicone
SEM06C016TFSEALSSSM616mmT-30Flat Head300 Stainless SteelSilicone
SEM06C020TFSEALSSSM620mmT-30Flat Head300 Stainless SteelSilicone
SEM06C025TFSEALSSSM625mmT-30Flat 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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