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FastenMaster Self Countersunk Screws Black 6.3 x 100mm 250 Pack (42236)

FastenMaster is a brand of task specific fasteners manufactured to enable a professional or serious DIYer to complete a project FASTER, EASIER and STRONGER. For technical support contact or telephone 01420 549201 or visit

  • Hex
  • Self Countersunk
  • No Pre-Drilling Required
  • Deep, Sharp, Single Thread for Cutting Cleanly through Wood
  • Self-Countersinking Head
  • Ideal for Fencing, Decking & Loft Conversions
  • Straight Shank for Low Penetration Resistance

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Will these work with new green oak sleepers?

Can these go straight in or is a pilot hole needed?
Asked by: jdrdiy

Can you use these with an angle bracket?

I'm screwing together sleepers for a raised flower bed. Thanks.
Asked by: Neil7

Are these suitable for use in Green Oak?

I know that usually stainless steel or brass is recommended for use in Oak as the sap can corrode steel. But are TimberLok (and HeadLok) suitable?
Asked by: Jez78

What size hex bit do I need for these?

Asked by: Albesan
The hex bit is supplied with these screws - so you don't need to buy it separately.
Answered by: Stvv
Date published: 2017-01-15

is a hex driver drill attachment included with the 50 pc Timberlok packs.

Asked by: PaulR100
Yes it's included in the pack!
Answered by: fellsteruk
Date published: 2017-05-11
  • y_2017, m_5, d_25, h_13CST
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Brand FastenMaster
Colour Black
Head Type Self Countersunk
Manufacturer Guarantee 1 Year Guarantee
Pack Size 250
Pieces in Pack/Case 250
Product Diameter 6.3 mm
Product Length 100 mm
Product Type Screws
Screw Diameter (mm) 6.3 mm
Screwdriver Type Hex
Suitable Use Type Ideal for Fencing, Decking & Loft Conversions

EN 14592.