Tek Screws 12 x 65mm Hex Head, Pack of 100

100 long self-drilling tek screws for steel, 12 gauge x 65mm, hex washer head, zinc colour. Our longest length, for fixing fence brackets through thick packing or layered material onto steel. Metal point, not for wood.

  • 12 gaugeAbout 5.5mm thread
  • 65mmLength, our longest
  • Hex headWasher head, self-drilling point
  • 100Screws per pack
Regular price R 100.00
Collect at a branch, no charge
  • Alectra Hatfield 648 Jan Shoba Street, HatfieldMon to Fri 07:30 to 17:00, Sat 08:00 to 17:00
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  • Alectra Wonderboom Braam Pretorius Street, WonderboomMon to Sun 08:00 to 16:45
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Choose Pickup at checkout and we message you when your order is ready to collect, usually within 24 hours. You can pay online, or pay at the branch when you collect.

The longest of our tek screws for steel: 12 gauge by 65mm, hex washer head, self-drilling point, in a pack of 100. Use it where an electric fence bracket has to be fixed through thick packing, spacers or layered material before the point reaches the steel post or frame behind. These are metal tek screws: the point drills steel, not wood. If the bracket sits flat on the steel the 12 x 25mm is enough, and for a single spacer the 12 x 38mm does it.

Tek screws for steel: why length is not thickness

12 is the gauge, a thread of about 5.5mm. 65 is the length in millimetres. A longer screw reaches through more material before it bites, but it does not drill thicker steel: that depends on the drill point number, which the maker does not state. So we do not quote a maximum steel thickness, and the 65mm drills the same steel as the 25mm. It just gets there through more packing.

Hex washer head

The hex head takes a socket driver in a drill, and the washer face spreads the load on the bracket foot. There is no rubber sealing washer, so this is a fixing screw, not a roofing screw. The finish is zinc colour.

Not for wood or brick

The point on these screws is a metal drilling point. Timber tek screws have a different point and a coarser thread, so do not use these on a wooden post. For brick, concrete or block, use nail-in anchors 8 x 80mm or the Nemtek coach screw and plug set.

Pairs well with

Our 8 line bottom bend bracket, 6 line and 8 line straight square tube brackets, Nemtek 1.6mm aluminium wire, the 8 line electric fence kit and a Nemtek Merlin Stealth M18S energizer.

Courier anywhere in South AfricaR160 for orders up to 10 kg. Heavier orders are priced by weight at checkout. Free courier on orders of R8,000 or more, up to 10 kg.
Collect in Pretoria at no chargeChoose collection at checkout and pick up at Hatfield or Wonderboom.
Genuine stockSupplied through the official South African distributors, with the supplier warranty.
Key features
  • Reaches through thick packing. 65mm passes through spacers, packing or layered material and still bites into the steel behind it.
  • Drills its own hole. The self-drilling point cuts through the steel as you drive the screw. No pilot hole, no separate bit.
  • Metal point, for steel. Steel posts and frames only. Timber tek screws have a different point and thread.
  • Hex washer head. Driven with a hex socket in a drill. The washer face spreads the load on the bracket foot.
  • 12 gauge thread. About 5.5mm across, the same gauge as our 25mm and 38mm tek screws.
  • Zinc colour finish, no sealing washer. A plain fixing screw, not a roofing screw.
  • Pack of 100. Enough screws for a full run of brackets on a steel fence.
Specifications
Gauge12 gauge (about 5.5mm thread)
Length65mm
HeadHex washer head
PointSelf-drilling, for steel
Sealing washerNone
FinishZinc colour
Fixes intoSteel posts and frames
SuitsBracket fixed through thick packing or layered material onto steel
Pack contents100 tek screws
Sold asPack of 100
Not in the box
  • Hex socket driver
  • Brackets
  • Spacers or packing
Questions people ask
Can I use them in wood?

They are metal tek screws with a metal drilling point. Timber tek screws have a different point and a coarser thread, so use the right screw for a wooden post.

What thickness of steel will they drill?

The maker does not state the drill point number, which is what sets the steel thickness a tek screw can drill, so we cannot quote a maximum. The length of the screw does not change it: a longer screw drills the same steel, it just reaches through more material first.

Do I need to drill a hole first?

No. The self-drilling point cuts its own hole in the steel as you drive the screw with a drill, so there is no pilot hole and no separate drill bit.

When do I need the 65mm rather than the 25mm or 38mm?

When the screw has to pass through thick packing, spacers or more than one layer before it reaches the steel. For a bracket foot flat on the steel use the 25mm, and for a single spacer the 38mm.

What do I drive them with?

A hex socket driver in a drill. The maker does not state the hex size, so check it against the head before you buy a socket.

Can I use them in a brick wall?

No. Tek screws are for steel. For brick, concrete or block, use nail-in anchors, or the Nemtek coach screw and plug set for square tube brackets.

Are they suitable near the coast?

The maker does not state the coating class, only that the finish is zinc colour. For a fence near the sea, ask the branch before you order.

Need it fitted? Alectra Solutions supplies product only. Ask the branch and we will point you to installers in Pretoria.

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