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Plumbing Processes

Exam revision materials for Plumbing Level 2&3 and ACS Gas Safety test

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Plumbing Fixings

Screws

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  • Torx –star
  • Black Jappaned – round head, facia brackets
  • Pan Head – metallic sheets
  • Hex Washer Head – metal, wood, box spanner
  • Flat Head – metal
  • Security screw – clutch head, can't be undone
  • Self Tapping – no pilot hole
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