APM Self-Sealing Nuts

APM's SEELNUT® stainless steel self-sealing nuts feature an embedded silicone insert technology that eliminates the need for liquid sealants

Image of APM Hexseal's APM Self-Sealing NutsAPM Hexseal's self-sealing nuts are designed to seal to 20,000 psi, as well as fasten where gas or liquids are present or under pressure (vacuum). APM's SEELNUT® stainless steel self-sealing nuts feature an embedded (bonded) silicone insert technology that eliminates the need for liquid sealants. The insert features threads on the I.D. surface (an APM exclusive feature not available on competitive sealing-nuts) mating with the fastener's threads for 100% sealing and torque, which also permits 360° metal-to-metal contact between the fastener and equipment contact 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.

For users who require additional vibration control, APM offers several embedded "dry" threadlocking techniques. SEELNUTs are a UL recognized component and easily operate in a temperature range of -160° to +500°F (-106°C to +260°C). High-pressure SEELNUTS 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 nut
  • Reusable and compatible with all surface finishes
  • 360° metal-to-metal contact assures fastening integrity
  • Operating temperature range of -160° to +500°F (-106°C to +260°C)
  • Uniform, high-strength design
  • UL and CSA recognized
  • UL tested
  • RoHS and DFARS compliant
  • Made in USA

SEELNUT®

ImageManufacturer Part NumberDescriptionPart StatusTypeThread SizeAvailable Quantity
6-32 AJ 6 datasheet linkHEX SEAL NUT 5/16" STEEL 6-326-32 AJ 6HEX SEAL NUT 5/16" STEEL 6-32ActiveHex (Self Sealing)#6-32501 - Immediate
6-32 AJ 6 product page link
8-32 AJ 6 datasheet linkHEX SEAL NUT 11/32" STEEL 8-328-32 AJ 6HEX SEAL NUT 11/32" STEEL 8-32ActiveHex (Self Sealing)#8-32312 - Immediate
8-32 AJ 6 product page link
1/4-20 AJ 6 datasheet linkHEX SEAL NUT 7/16" STEEL 1/4-201/4-20 AJ 6HEX SEAL NUT 7/16" STEEL 1/4-20ActiveHex (Self Sealing)1/4"-20138 - Immediate
1/4-20 AJ 6 product page link
3/8-16 AJ 6 datasheet linkHEX SEAL NUT 9/16" STEEL 3/8-163/8-16 AJ 6HEX SEAL NUT 9/16" STEEL 3/8-16ActiveHex (Self Sealing)3/8"-16179 - Immediate
3/8-16 AJ 6 product page link
5/16-24 AJ 6 datasheet linkHEX SEAL NUT 1/2" STEEL 5/16-245/16-24 AJ 6HEX SEAL NUT 1/2" STEEL 5/16-24ActiveHex (Self Sealing)5/16"-24231 - Immediate
5/16-24 AJ 6 product page link
3/8-24 AJ 6 datasheet linkHEX SEAL NUT 9/16" STEEL 3/8-243/8-24 AJ 6HEX SEAL NUT 9/16" STEEL 3/8-24ActiveHex (Self Sealing)3/8"-24194 - Immediate
3/8-24 AJ 6 product page link
1/2-20 AJ 6 datasheet linkHEX SEAL NUT 3/4" STEEL 1/2-201/2-20 AJ 6HEX SEAL NUT 3/4" STEEL 1/2-20ActiveHex (Self Sealing)1/2"-20231 - Immediate
1/2-20 AJ 6 product page link
10-24 AJ 6 datasheet linkHEX SEAL NUT 3/8" STEEL 10-2410-24 AJ 6HEX SEAL NUT 3/8" STEEL 10-24ActiveHex (Self Sealing)#10-2463 - Immediate
10-24 AJ 6 product page link
10-32 AJ 6 datasheet linkHEX SEAL NUT 3/8" STEEL 10-3210-32 AJ 6HEX SEAL NUT 3/8" STEEL 10-32ActiveHex (Self Sealing)#10-32010-32 AJ 6 product page link
5/16-18 AJ 6 datasheet linkHEX SEAL NUT 1/2" STEEL 5/8-185/16-18 AJ 6HEX SEAL NUT 1/2" STEEL 5/8-18ActiveHex (Self Sealing)5/8"-1805/16-18 AJ 6 product page link
1/2-13 AJ 6 datasheet linkHEX SEAL NUT 3/4" STEEL 1/2-131/2-13 AJ 6HEX SEAL NUT 3/4" STEEL 1/2-13ActiveHex (Self Sealing)1/2"-1301/2-13 AJ 6 product page link
1/4-28 AJ 6 datasheet linkHEX SEAL NUT 7/16" STEEL 1/4-281/4-28 AJ 6HEX SEAL NUT 7/16" STEEL 1/4-28ActiveHex (Self Sealing)1/4"-282 - Immediate
1/4-28 AJ 6 product page link
7/16-20 AJ 6 datasheet linkHEX SEAL NUT 11/16" STEEL 7/167/16-20 AJ 6HEX SEAL NUT 11/16" STEEL 7/16ActiveHex (Self Sealing)7/16"-208 - Immediate
7/16-20 AJ 6 product page link
5/8-18 AJ 6 datasheet linkHEX SEAL NUT 15/16" STEEL 5/8-185/8-18 AJ 6HEX SEAL NUT 15/16" STEEL 5/8-18ActiveHex (Self Sealing)5/8"-1805/8-18 AJ 6 product page link
Published: 2012-06-29