Sealing Bolts

Custom Bolts Manufacturer


Sealing Bolts


Heatfastener is an ISO 9001:2015 manufacturer specializing in the Global supply of Sealing bolts, Sealing screws, custom bolts, Flange Bolts, and Carriage Bolts. Hex Bolts, Titanium Bolts, Expansion Bolts, custom fasteners, etc.

All of the products are widely used in the medical, instrumentation, aerospace, maritime, microwave, electronics, and chemical equipment industries, we have designed and manufactured key components for world-famous enterprises and are committed to providing our customers with high-quality products, high-level services, and continuous improvement

With ISO9001:2008,iso14001:2004, and especially IAFT16949:2009 certification for the automotive industry. Heatfastener offers fully customized custom bolts and screws according to your needs. We can bring your fastener design to reality, and everything according to your requirements.

Sealing bolts

What are Sealing Bolts?

Sealing fasteners are highly specialty fasteners that include sealing bolts, nuts, sealing screws, and washers. Unlike ordinary fasteners, sealing fasteners are designed with a rubber O-ring (or a rubber element) that when squeezed, permanently seals out contaminants. Sealing Fasteners protect against harsh climates as well moisture and gas by preventing contaminants including dirt and water, or any debris or chemicals that can damage or destroy equipment from entering the application through gaps between the fastener and the contact surface. This is achieved through the use of a rubber O ring under the fastener which forms a seal.

What are Sealing Bolts Fasteners Application?

 These types of fasteners are used in several industries because of their unique ability to protect conventional machinery and complex equipment with high-tech properties. such as these components are a staple for the military and aerospace sectors, sealing critical applications such as fuel pumps of jet and rocket engines, satellite equipment, and others.

If you’re uncertain when to utilize sealing bolts, below are three basic questions to ask. If the response to any one of the complying with questions is “yes,” after that sealing bolts are an ideal selection to protect and optimize the performance of an application or tools.
Does your high-asset equipment or delicate devices require an air-tight, hermetic seal to …

  • Make sure security from possible direct exposure to oil, gases, liquids, chemicals, dirt, dust, dampness, deep sea, or other impurities?
  • Stand up to extreme stress, temperature level, and/or weather conditions?
  • Prevent the infiltration of toxins dripping into the atmosphere?

Sealing fasteners are used to seal all sorts of equipment whether on land, in the air or at sea, including:

  • Aircraft engines & motors
  • Circuit boards
  • Conveyor belts
  • Data centers
  • Drones and drone ports
  • Earphones
  • Electric charging vehicle units
  • HVAC systems
  • Invasive / non-invasive medical devices
  • LED / smart lighting
  • Night-vision goggles
  • Rechargeable batteries
  • Robots and co-bots
  • Sensors
  • 3D cameras / LiDAR technology

Electricity Meter Lead Seal bolt

Buy and shop Electricity Meter Lead Seal bolt at Heatfastener, No matter stainless steel A2 A4, or titanium, aluminum, steel, brass, Copper or thread size M3, M4, M5, M6, M7, M8, M91 M10, M12, M14, M16, etc. Or slotted, Phillips, Hex, one way, Torx, Torx pin,Or Pan, Truss, Cheese, Button, Flat, Round Head, you can rely on Heatfastener

  • Brass
  • Size:M1, M2, M3, M4, M5, M6, M7 ,M8, M9, M10, M12, M14, M16
  • Machine thread
  • Head Type: Sealing
  • Passivated
  • Not slotted
  • Corrosion-Resistant
  • custom brass sealing bolts supplier
  • Can customize your drawing and design
  • Samples are available

Sealing screws with O ring

  • Uniquely engineered with a groove under the head of the bolt; when combined with a rubber O-ring and tightened, squeezes outwardly to form a 360º hermetic seal.
  • The seal prevents contaminants, i.e., water, moisture, oil, gas, disinfectants, saltwater, precipitation, and dust, from seeping into machinery and damaging it or leaking out into the environment.
  • Resistant to extreme temperatures (hot & cold), atmospheric pressure, and adverse weather.
  • Available as hex and Torx, socket cup, hex flange sealing bolts in corrosion-resistant metals, and rubber O-ring materials.
  • Available as stainless steel, brass, copper, steel, titanium, etc, Rubber O-rings are offered in Silicone, Fluorosilicone, Viton, Neoprene, Buna-N, Teflon, and EPDM material.
  • Perfect for fortifying and protecting indoor/outdoor equipment, and suitable for use in myriad industries, including industrial machinery, automotive, and alternative energy.
  • Pressure-resistant, reusable, pollutant free

Need Custom Bolts for Your Industry?

As a 20-year industry experience manufacturer with a factory equipped with precision machines, we can provide, from consultation to production, a one-stop solution for you.

About Us

Shenzhen Heat Hardware Co., Ltd is a leading custom screw manufacturer in China founded in 2000 years. We are specializing in custom screws, security screws, Sems screws, Chicago Screws, Weld Screws, Long screws, Micro Screws, Thumb Screws, Set Screws, Custom bolts, carriage bolts, nuts, and other custom Fasteners. With more than 20years of industry experience. We have serviced over 20000customers including the aerospace industry, automotive industry, electronics, mechanical and electrical products, robots, the Medical industry, communications industry, Outdoor sports products, smart appliances, etc. we can provide one-stop fastener customized service for you no matter what kind of custom fastener you need.

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