Sealed Bolts

Precision Fasteners · Solution Provider

Sealed Bolts

Sealed Bolts

Product Description High-Precision Self-Sealing Bolts (O-Ring Integrated) Our self-sealing bolts feature a seamless integration of high-strength fasteners with specialized elastomeric seals (such as O-rings). The unique under-head groove de...

Product Overview

The sealing bolt integrates a high-strength bolt with a special rubber seal, such as an O-ring, in one piece, and a distinctive groove under the head prevents the seal from being crushed out of shape. When tightened, the ring is compressed and fills the gaps of the mating faces, completing fastening and leak-proofing in one operation; it effectively isolates liquid or gas and reduces the number of parts and potential leak points.

Technical Features

  • The bolt integrates the O-ring, completing fastening and sealing in one step.
  • An under-head groove retains the sealing ring and prevents it from being squeezed out.
  • High-strength alloy steel body with unimpaired load capacity
  • Selectable seal materials to suit different media and temperatures.
  • Fewer assembly parts and fewer potential leak points

Technical Specifications

MaterialHigh-strength alloy steel
Surface treatmentBlack oxide / zinc plating / zinc-nickel alloy (optional)
StandardThread GB/T 196, GB/T 197 (ISO 965-1) 6g; Mechanical properties GB/T 3098.1 (ISO 898-1); O-ring GB/T 3452.1; Sealing rating IP68 (IEC 60529)
ApplicationIntegrated fastening and fluid sealing
Seal / O-ringFKM (Viton); EPDM / NBR on request
Seal ratingIP67 / IP68 on application
Thread rangeM3-M12; UNC / UNF on request

Applications

  • Hydraulic and pneumatic manifolds
  • New-energy battery pack enclosures
  • Engine and transmission housings
  • Pumps, valves and pipeline connections

Tel: 13560730094
WeChat QR Code
CN EN ES DE JA RU PT