APM Hexseal

Self-Sealing Screws

APM Hexseal's self-sealing screws are designed to seal to 20,000 psi

Image of APM Hexseal's Self-Sealing ScrewsAPM Hexseal's self-sealing screws are designed to seal to 20,000 psi, as well as fasten anyplace where gas or liquids are present or under pressure (vacuum). APM's SEELSKREW® stainless steel self-sealing screws feature an embedded O-ring technology (an APM patent) that eliminates the need for liquid sealants. The silicone O-ring resides in an asymmetrical groove located under the head, which permits 360° metal-to-metal contact between the underside of the fastener and equipment exterior surface for positive sealing. Because no adhesive is required (dry), the fastener can easily be removed many times for field servicing and upon initial installation promotes more precise torque. There are no chemical vapors for workers to breathe in, and no waste disposal problems.

High-Pressure SEELSKREWs are used extensively in underwater, surface marine, instrumentation, medical, military-ground, aviation, automotive, robotics, and off-road construction equipment in a wide variety of hydraulic, pneumatic, and electrical control systems.

Features
  • Positive sealing under vacuum or pressure
  • Installs like a conventional fastener
  • Reusable and compatible with all surface finishes
  • Operating temperature range of -160° to +500°F (-106°C to +260°C)
  • Full 360° metal-to-metal contact assures fastening integrity
  • Uniform, high-strength design
  • UL and CSA recognized
  • UL tested
  • RoHS and DFARS compliant
  • Made in USA

SEELSKREW®

ImageManufacturer Part NumberDescriptionLength - OverallMaterialAvailable QuantityPrice
MACH SCREW PAN HEAD PHILLIPS M3RM3X4MM 2701MACH SCREW PAN HEAD PHILLIPS M30.250" (6.35mm) 1/4"Stainless Steel26070 - Immediate$51.34View Details
MACH SCREW PAN HEAD PHILLIPS M3RM3X6MM 2701MACH SCREW PAN HEAD PHILLIPS M30.342" (8.69mm)Stainless Steel24415 - Immediate$51.34View Details
MACH SCREW PAN HEAD PHILLIPS M3RM3X8MM 2701MACH SCREW PAN HEAD PHILLIPS M30.409" (10.40mm)Stainless Steel26585 - Immediate$55.77View Details
MACH SCREW PAN PHILLIPS #4-40R4-40X1/4 2701MACH SCREW PAN PHILLIPS #4-400.330" (8.38mm)Stainless Steel13014 - Immediate$55.77View Details
MACH SCREW PAN HEAD PHILLIPS M3RM3X10MM 2701MACH SCREW PAN HEAD PHILLIPS M30.488" (12.40mm)Stainless Steel6904 - Immediate$55.77View Details
MACH SCREW PAN PHILLIPS M4X0.7RM4X10MM 2701MACH SCREW PAN PHILLIPS M4X0.70.514" (13.06mm)Stainless Steel20006 - Immediate$58.42View Details
MACH SCREW PAN PHILLIPS #4-40R4-40X1/2 2701MACH SCREW PAN PHILLIPS #4-400.580" (14.73mm)Stainless Steel4038 - Immediate$58.42View Details
MACH SCREW PAN PHILLIPS #4-40R4-40X3/8 2701MACH SCREW PAN PHILLIPS #4-400.455" (11.56mm)Stainless Steel3535 - Immediate$58.42View Details
MACH SCREW PAN PHILLIPS #8-32R8-32X1/2 2701MACH SCREW PAN PHILLIPS #8-320.615" (15.62mm)Stainless Steel10835 - Immediate$65.50View Details
MACH SCREW PAN PHILLIPS #10-32R10-32X3/8 2701MACH SCREW PAN PHILLIPS #10-320.508" (12.90mm)Stainless Steel4786 - Immediate$70.82View Details
MACHINE SCREW PAN PHIL M2.5RM2.5X8-2701MACHINE SCREW PAN PHIL M2.5--8360 - Immediate$93.83View Details
MACH SCREW PAN HEAD PHILLIPS M3RM3X12MM 2701MACH SCREW PAN HEAD PHILLIPS M30.567" (14.40mm)Stainless Steel6611 - Immediate$55.77View Details
MACH SCREW PAN PHILLIPS #6-32R6-32X1/4 2701MACH SCREW PAN PHILLIPS #6-320.347" (8.81mm)Stainless Steel2414 - Immediate$55.77View Details
MACH SCREW PAN PHILLIPS M4X0.7RM4X8MM 2701MACH SCREW PAN PHILLIPS M4X0.70.435" (11.05mm)Stainless Steel6258 - Immediate$58.42View Details
MACH SCREW PAN PHILLIPS M4X0.7RM4X6MM 2701MACH SCREW PAN PHILLIPS M4X0.70.356" (9.04mm)Stainless Steel3661 - Immediate$58.42View Details
MACH SCREW PAN PHILLIPS #6-32R6-32X3/8 2701MACH SCREW PAN PHILLIPS #6-320.472" (11.99mm)Stainless Steel3532 - Immediate$58.42View Details
MACH SCREW PAN PHILLIPS #6-32R6-32X5/16 2701MACH SCREW PAN PHILLIPS #6-320.410" (10.41mm)Stainless Steel1611 - Immediate$58.42View Details
MACH SCREW PAN PHILLIPS #6-32R6-32X1/2 2701MACH SCREW PAN PHILLIPS #6-320.597" (15.16mm)Stainless Steel3543 - Immediate$61.08View Details
MACH SCREW PAN PHILLIPS #8-32R8-32X1/4 2701MACH SCREW PAN PHILLIPS #8-320.365" (9.27mm)Stainless Steel1220 - Immediate$61.08View Details
MACH SCREW PAN PHILLIPS #8-32R8-32X3/8 2701MACH SCREW PAN PHILLIPS #8-320.490" (12.45mm)Stainless Steel2147 - Immediate$63.73View Details
Published: 2012-06-29

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Sealing Fasteners and Washers APM's patented, pre-assembled self-sealing screws and fasteners provide both fastening and sealing integrity in a single unit.