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Triumph Pre-Unit 500 650 Twins Fillister Screw Set 1954-62 PN# TBS-8300

$47.16

Availability: In stock

SKU: 633726137547 Categories: , Tag: Year: 1954-1962Make: TriumphModel: 5T 6T TR5 TR6 T100 T110 T120 Brands:

Correct Fillister head engine case screws are manufactured to original specifications by LF Harris in the UK. The 34-piece set is suitable for the chaincase, gearbox, and timing covers on 1954-1962 Triumph Pre-Unit twin cylinder models.

The set includes:

  • (1) 3″ UH
  • (5) 2-1/2″ UH
  • (3) 1-9/16″ UH long thread
  • (3) 1-9/16″ UH short thread
  • (1) 1-1/2″ UH
  • (21) 15/16″ UH screws,

all threaded in 1/4-20 TPI British Standard Whitworth (BSW). These Fillister head screws feature a 3/8″ diameter head with a slightly domed top for correct fitment into the cutaways on the engine covers. Finished in zinc plating for corrosion resistance and a crisp appearance.

The case cover screws feature a Pozidriv recess on the heads for excellent cover retention and an oil-tight seal. When used with the correct screwdriver, these screws can be tightened to an increased torque value without annoying “cam-out”, or slippage occurring within the drive recess on the screw head.

It is advisable to clean the threads in the crankcase and gearbox with a tap to allow for best thread retention and an oil-tight seal between the covers and the crankcase. Thread locking compound is not recommended for use on cover screws.

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LF Harris motorcycle spares are produced to the highest quality standards possible utilizing original Triumph tooling, dies, factory blueprints & materials combined with modern manufacturing equipment, tolerances & techniques.

 

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