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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 Acorn Sealing Nuts

Metric Acorng Sealing Nut - Silicone O-Ring

Metric acorn sealing nuts are used in situations in which leakage, vibration, or environmental forces cause ordinary nuts to fail. Metric acorn sealing nuts are not ordinary nuts; they are engineered with an advanced feature, a rubber fixture, which has been permanently bonded with the threading of the nut. When the nuts are torqued, the rubber element forms an air-tight seal along the threading of your bolt.

All parts are made from 18-8 Stainless Steel.

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

Apex Part NumberThreadNut TypePart MaterialO-Ring
M3ACNTSSSILM3Acorn300 Stainless SteelSilicone
M4ACNTSSSILM4Acorn300 Stainless SteelSilicone
M6ACNTSSSILM6Acorn300 Stainless SteelSilicone
M8ACNTSSSILM8Acorn300 Stainless SteelSilicone
M10ACNTSSSILM10Acorn300 Stainless SteelSilicone
M12ACNTSSSILM12Acorn300 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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