myMectronic
myMectronic

A Premier B2B Part Search

APM HEXSEAL R440X12 self-sealing screw

The R4-40X1/2 is a stainless steel high-pressure self-sealing screw from the SEELSKREW series, offering airtight, watertight sealing for preventing contamination and leaks. Designed for pressure and vacuum applications up to 6,000 psi, it features a 4-40 thread size and 12.7mm length, ensuring positive sealing with metal-to-metal contact that resists loosening caused by vibration. Easy to install as a pre-assembled unit, it is reusable, compatible with all surface finishes, and recognized by UL for high reliability. Suitable for instrumentation, HVAC, medical, aerospace, and defense systems, it eliminates the need for adhesives, tapes, or coatings.

Authorized Distributors
Part No:R4-40X1/2
Stock:0
Inv Date:06-18-2026
Price: N/A
Buy/RFQ:

APM HEXSEAL R440X12 self-sealing screw Specifications:

  • Material: Non-magnetic stainless steel (passivated)
  • Thread Size: 4-40 UNC
  • Length: 12.7 mm (1/2 inch)
  • Sealing Type: Self-sealing with captive O-ring
  • Pressure Range: Up to 6,000 psi/vacuum
  • Temperature Range: -160°F to +500°F
  • Resistant to: Salt water, weather, dirt, dust, sunlight, ozone, most acids
  • Certification: UL Recognized
  • Installation: Pre-assembled, easy installation like a standard screw, reusable
  • Surface Compatibility: All surface finishes
  • Application: Instrumentation, test/measurement, HVAC, aerospace, military

Buy the Buy APM HEXSEAL R4-40X12 Self-Sealing Screw Part Number R440X12 Online

Order the APM HEXSEAL R4-40X12 self-sealing screw online today and ensure reliable, high-pressure airtight and watertight seals in your critical systems. Designed for applications up to 6,000 psi, this stainless steel fastener offers excellent vibration resistance, reusability, and compatibility with various surface finishes. Its positive sealing capability prevents air, water, and contaminant leaks, making it ideal for aerospace, medical, and industrial use. Easy to install, no adhesives required, and UL recognized for consistent, dependable performance worldwide.

Buy APM HEXSEAL R4-40X12 self-sealing screw now and ensure airtight, high-pressure sealing for demanding industrial and aerospace applications.

Frequently Asked Questions

Where can I buy APM HEXSEAL R440X12?

You can click on the BUY or RFQ button to purchase R440X12 from an authorized APM HEXSEAL distributor.

How do I troubleshoot issues or seek technical support for part R440X12?

You can download the R440X12 datasheet or visit the APM HEXSEAL website for support.

Who is the manufacturer of R440X12?

APM HEXSEAL

APM HEXSEAL Part List

Browse and search other APM HEXSEAL parts, locate datasheets and stock

Sponsored by