When using a tool for installation, be sure to let your APM Hexseal representative know so they can offer advice about the best amount of torque for your material and fastener design. As with standard fasteners, it is important to accurately measure your mounting hole and use the appropriately sized Seelbolt or Seelskrew for your application. Simply screw the hardware into the pre-drilled mounting hole using your standard hand or power tools, the same way you would with a regular bolt or screw. Full 360° metal-to-metal contact for fastening integrityĮasy installation is one of the best things about our patented Seelskrews and Seelbolts.Broad operating temperature range from -160☏ to 500☏ (-106☌ to 260☌).Compatibility with all surface finishes.Positive seals while under pressure or vacuum conditions.FeaturesĪPM Hexseal’s Seelskrews and Seelbolts offer a variety of unique features not shared by traditional fastening and sealing hardware, including: The Seelskrew or Seelbolt not only holds the component parts in place, but also helps to seal against intrusion from unwanted fluid, gas, and debris. Once fastened into the clearance hole, a Seelskrew or Seelbolt will offer 360° metal-on-metal contact when fully compressed. A silicone O-ring is embedded in the groove under the screw’s head, creating a durable seal that resists moisture and corrosive chemicals. The stainless steel provides a strong, corrosion-resistant base that’s ideal for fastening. We started the design with a stainless steel screw with a custom designed undercut head. The anatomy of our Seelskrews and Seelbolts is simple, yet functional. Some additional customizations include specialty thread-forming variations, tamper-resistant drives, thread captivation, and paint and finish options.įor information on maximum torque values for Seelskrews and Seelbolts, please see our table of Torque Values for Self-Sealing Hardware. Seelskrews and Seelbolts are available in many standard thread sizes and with various O-ring elastomer options. ![]() ![]() Should you need a more serious level of vibration-resistance, our screws and bolts are available with additional locking features, such as self-locking pellets, strips, and patches. They are also vibration-resistant, making them a great choice for applications that encounter day-to-day jarring, or repetitive movement. Our sealing fasteners are critical in preventing or containing contamination from dust, air, water, lubricants and other liquid or gaseous substances. As a result, our self-sealing screws and bolts offer a reliable and reusable seal, without messy goops that are difficult and tedious to apply. APM Hexseal’s patented Seelskrews® and Seelbolts® combine dependable fastening hardware with built in weatherproof sealing materials. Socket Set Screws are designed to be used where permanent or adjustable locations of components on shafts is required.Fasteners often require additional sealing additives, such as messy liquid or paste compounds, to prevent leaks and ensure reliable, secure holds. They are set in countersunk holes and the top of the head is flush with the surface of the assembly. ![]() Due to the head design these parts should not be used in critical applications where high tensile strength is required.įlat Head Socket Cap Screws, DIN 7991 / ISO 10642įlat socket head cap screws are designed for use in applications where the head cannot protrude above the mating parts. The greater under head area also protects mating parts from damage. The curved design of the button head is decorative and protects adjoining parts from scrapes and other damage. Due to the head design these parts should not be used in critical applications where high tensile strength is requiredīutton Head Socket Cap Screws, ISO 7380 / DIN 9427īutton socket cap screws are designed for applications that allow the head to protrude above the mating parts. ![]() Low head socket cap screws are designed to be used where clearance is an issue or the mating parts are too thin for standard socket head cap screw. They should be used where high strength and ease of installation are required. Socket head cap screws are designed to be used with a head protruding or counter bored. Socket Head Cap Screws, DIN 912 / ISO 4762 Figures only valid for coarse thread screws and should be used as a reference guide only as variables such as but not limited to temperature, lubrication, plating and condition of mating threads will change Torque figures. Note - All Torque figures given as R.S, or 'Recommended Seating Torque' figures except the Socket Set Screw torque given as 'Proof Torque'. Metric Fasteners - Socket Screws Torque Figures, Alloy Steel
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