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 M3RM3X6MM 2701MACH SCREW PAN HEAD PHILLIPS M30.342" (8.69mm)Stainless Steel49775 - Immediate$0.50View Details
MACH SCREW PAN HEAD PHILLIPS M3RM3X4MM 2701MACH SCREW PAN HEAD PHILLIPS M30.250" (6.35mm) 1/4"Stainless Steel28910 - Immediate$0.50View Details
MACH SCREW PAN HEAD PHILLIPS M3RM3X8MM 2701MACH SCREW PAN HEAD PHILLIPS M30.409" (10.40mm)Stainless Steel22812 - Immediate$0.54View Details
MACH SCREW PAN PHILLIPS #4-40R4-40X1/4 2701MACH SCREW PAN PHILLIPS #4-400.330" (8.38mm)Stainless Steel10533 - Immediate$0.54View Details
MACH SCREW PAN HEAD PHILLIPS M3RM3X10MM 2701MACH SCREW PAN HEAD PHILLIPS M30.488" (12.40mm)Stainless Steel9628 - Immediate$0.54View Details
MACH SCREW PAN PHILLIPS M4X0.7RM4X10MM 2701MACH SCREW PAN PHILLIPS M4X0.70.514" (13.06mm)Stainless Steel15903 - Immediate$0.57View Details
MACH SCREW PAN PHILLIPS #4-40R4-40X1/2 2701MACH SCREW PAN PHILLIPS #4-400.580" (14.73mm)Stainless Steel5879 - Immediate$0.57View Details
MACH SCREW PAN PHILLIPS #8-32R8-32X1/2 2701MACH SCREW PAN PHILLIPS #8-320.615" (15.62mm)Stainless Steel10727 - Immediate$0.64View Details
MACH SCREW PAN PHILLIPS #10-32R10-32X3/8 2701MACH SCREW PAN PHILLIPS #10-320.508" (12.90mm)Stainless Steel3954 - Immediate$0.69View Details
MACH SCREW PAN HEAD PHILLIPS M3RM3X12MM 2701MACH SCREW PAN HEAD PHILLIPS M30.567" (14.40mm)Stainless Steel5525 - Immediate$0.54View Details
MACH SCREW PAN PHILLIPS #4-40R4-40X3/8 2701MACH SCREW PAN PHILLIPS #4-400.455" (11.56mm)Stainless Steel6731 - Immediate$0.57View Details
MACH SCREW PAN PHILLIPS M4X0.7RM4X8MM 2701MACH SCREW PAN PHILLIPS M4X0.70.435" (11.05mm)Stainless Steel6198 - Immediate$0.57View Details
MACH SCREW PAN PHILLIPS M4X0.7RM4X6MM 2701MACH SCREW PAN PHILLIPS M4X0.70.356" (9.04mm)Stainless Steel3631 - Immediate$0.57View Details
MACH SCREW PAN PHILLIPS #6-32R6-32X5/16 2701MACH SCREW PAN PHILLIPS #6-320.410" (10.41mm)Stainless Steel1561 - Immediate$0.57View Details
MACH SCREW PAN PHILLIPS #6-32R6-32X3/8 2701MACH SCREW PAN PHILLIPS #6-320.472" (11.99mm)Stainless Steel1472 - Immediate$0.57View Details
MACH SCREW PAN PHILLIPS #6-32R6-32X1/2 2701MACH SCREW PAN PHILLIPS #6-320.597" (15.16mm)Stainless Steel2887 - Immediate$0.60View Details
MACH SCREW PAN PHILLIPS #8-32R8-32X1/4 2701MACH SCREW PAN PHILLIPS #8-320.365" (9.27mm)Stainless Steel2444 - Immediate$0.60View Details
MACH SCREW PAN PHILLIPS #8-32R8-32X3/8 2701MACH SCREW PAN PHILLIPS #8-320.490" (12.45mm)Stainless Steel2055 - Immediate$0.62View Details
MACH SCREW PAN PHILLIPS M4X0.7RM4X20MM 2701MACH SCREW PAN PHILLIPS M4X0.70.907" (23.05mm)Stainless Steel15068 - Immediate$0.64View Details
MACH SCREW PAN HEAD PHILLIPS M2RM2X8MM 2701MACH SCREW PAN HEAD PHILLIPS M20.378" (9.60mm)Stainless Steel3833 - Immediate$0.64View 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.