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Screw Ring

Screw Ring

Screw Ring

Product Description

Standards Go & No Go sizes as per the specification external thread
  1. ISO Metric Theads (M)
  2. INCH standard or Unified Theads (UNC, UNF, UNEF, UN, UNS)
  3. BSW and BSF Thread Gauges for testing parallel threads
  4. BA and G Series Thread Gauges
  5. Other Thread Forms and Specifications
Screw Plugs are manufactured for different applications.

Range Dia : 1 – 250mm
Pitch : 0.25 – 7.0mm
TPI : 100 - 4

Most Common Thread Forms:

  • UN & ISO 60°
  • WHIT 55°
  • ACME 29°
  • TRAP. 30°
  • BA 47.5°
  • BUTTRESS 7°/45° & 3°/30°
  • CONDUIT 80°INCL. DIN 40431
  • KNUCKLE ROUND FORM DIN405

Standards Go & No Go sizes as per the specification external thread product tables
Special Go & No Go sizes for Pre-Plate or Pre-Heat (sizes must be advised)

Can be supplied as:

  • Standard or non-standard blank lengths
  • Single start/lead or multi starts/leads

Specification:

Blank design is to BS1044:2008

Diameters:

  • 1 – 15mm / 0.040 – 0.60” are made from Caseharden steel
  • 15.5- 250mm / 0.610 – 10.00” Are made from B01 tool Steel
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