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 Steel27627 - Immediate$10.05View Details
MACH SCREW PAN HEAD PHILLIPS M3RM3X6MM 2701MACH SCREW PAN HEAD PHILLIPS M30.342" (8.69mm)Stainless Steel15216 - Immediate$10.05View Details
MACH SCREW PAN HEAD PHILLIPS M3RM3X8MM 2701MACH SCREW PAN HEAD PHILLIPS M30.409" (10.40mm)Stainless Steel24195 - Immediate$10.92View Details
MACH SCREW PAN PHILLIPS #4-40R4-40X1/4 2701MACH SCREW PAN PHILLIPS #4-400.330" (8.38mm)Stainless Steel13330 - Immediate$10.92View Details
MACH SCREW PAN HEAD PHILLIPS M3RM3X10MM 2701MACH SCREW PAN HEAD PHILLIPS M30.488" (12.40mm)Stainless Steel7324 - Immediate$10.92View Details
MACH SCREW PAN PHILLIPS M4X0.7RM4X10MM 2701MACH SCREW PAN PHILLIPS M4X0.70.514" (13.06mm)Stainless Steel22621 - Immediate$11.44View Details
MACH SCREW PAN PHILLIPS #4-40R4-40X1/2 2701MACH SCREW PAN PHILLIPS #4-400.580" (14.73mm)Stainless Steel2561 - Immediate$11.44View Details
MACH SCREW PAN PHILLIPS #4-40R4-40X3/8 2701MACH SCREW PAN PHILLIPS #4-400.455" (11.56mm)Stainless Steel2067 - Immediate$11.44View Details
MACH SCREW PAN PHILLIPS #8-32R8-32X1/2 2701MACH SCREW PAN PHILLIPS #8-320.615" (15.62mm)Stainless Steel1142 - Immediate$12.82View Details
MACH SCREW PAN PHILLIPS #10-32R10-32X3/8 2701MACH SCREW PAN PHILLIPS #10-320.508" (12.90mm)Stainless Steel3979 - Immediate$13.86View Details
MACHINE SCREW PAN PHIL M2.5RM2.5X8-2701MACHINE SCREW PAN PHIL M2.5--8973 - Immediate$18.37View Details
MACH SCREW PAN HEAD PHILLIPS M3RM3X12MM 2701MACH SCREW PAN HEAD PHILLIPS M30.567" (14.40mm)Stainless Steel9056 - Immediate$10.92View Details
MACH SCREW PAN PHILLIPS #6-32R6-32X1/4 2701MACH SCREW PAN PHILLIPS #6-320.347" (8.81mm)Stainless Steel1369 - Immediate$10.92View Details
MACH SCREW PAN PHILLIPS #6-32R6-32X3/8 2701MACH SCREW PAN PHILLIPS #6-320.472" (11.99mm)Stainless Steel2718 - Immediate$11.44View Details
MACH SCREW PAN PHILLIPS #6-32R6-32X5/16 2701MACH SCREW PAN PHILLIPS #6-320.410" (10.41mm)Stainless Steel1336 - Immediate$11.44View Details
MACH SCREW PAN PHILLIPS #6-32R6-32X1/2 2701MACH SCREW PAN PHILLIPS #6-320.597" (15.16mm)Stainless Steel3564 - Immediate$11.96View Details
MACH SCREW PAN PHILLIPS M4X0.7RM4X20MM 2701MACH SCREW PAN PHILLIPS M4X0.70.907" (23.05mm)Stainless Steel8493 - Immediate$12.82View Details
MACH SCREW PAN HEAD PHILLIPS M2RM2X8MM 2701MACH SCREW PAN HEAD PHILLIPS M20.378" (9.60mm)Stainless Steel3524 - Immediate$12.82View Details
MACH SCREW PAN PHILLIPS #6-32R6-32X3/4 2701MACH SCREW PAN PHILLIPS #6-320.847" (21.51mm)Stainless Steel3197 - Immediate$12.82View Details
MACH SCREW PAN HEAD PHILLIPS M2RM2X12MM 2701MACH SCREW PAN HEAD PHILLIPS M20.535" (13.59mm)Stainless Steel3365 - Immediate$14.73View 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.