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Screw Guide for Decking

Last Updated: 30/10/20 at 1:23pm

Stainless Steel Screw Options for Decking

Type Applications Advantages Tips for Use
Hardwood Decking Screw 316, Star Drive, Self Drilling

CODE: SSTCKCG12...

Self Drilling Decking Screw

  • 12G x 50mm
  • 12G x 65mm
Commonly Used for Hardwood up to 21mm Thick

Pre-drilling generally not required depending on timber and driver.

Star drive allows for greater torque.

Heads look uniform across screws, unlike Square Drive heads which need to be lined up to achieve a uniform look.

Use T20 Max Torsion tip to drive screw.

Pre-drilling at board ends is required.

Hardwood Decking Screw 316, Star Drive, T17 Tip

CODE: SSTCKCG12...

Hardwood Decking Screw, T17 Tip

  • 12G x 50mm
  • 12G x 65mm
Commonly Used for Hardwood up to 21mm Thick

Pre-drilling is required but this means driving in the screws is easier on tools and gives a longer battery life than the self drilling screw

Star drive allows for greater torque.

Heads look uniform across screws, unlike Square Drive heads which need to be lined up to achieve a uniform look.

Use T20 Max Torsion tip to drive screw.

Hardwood Decking Screw 316, Star Drive, Spear Tip, Self Drilling

CODE: SSTCKCG...

Spear Tip Self Drilling Screw

  • M5 x 55mm
  • M5 x 70mm (available in 316SS & 316SS Bronze Finish)
Commonly Used for Hardwood up to 21mm Thick

Pre-drilling generally not required depending on timber and driver (except on board ends.)

Star drive allows for greater torque.

Heads look uniform across screws, unlike Square Drive heads which need to be lined up to achieve a uniform look.

Use T20 Max Torsion tip to drive screw.

Pre-drilling at board ends is required.

Screws are 316 SS and are heat treated to create a bronze finish.

Cylinder Head Decking Screw 316, Star Drive

CODE: SSTCKCG09...

Cylinder Head Decking Screw

  • 9G X 65mm (available in 316 SS & 316 SS Bronze Finish)
Commonly Used for Hardwood up to 21mm thick and also composite decking

Small trim cylinder head. May not need to countersink, depending on timber.

Star drive allows for greater torque.

Heads look uniform across screws, unlike Square Drive heads which need to be lined up to achieve a uniform look.

Use T20 Max Torsion tip to drive screw.

Pre-drilling may be required and recommended for hardwood and board ends.

Screws are 316 SS and are heat treated to create a bronze finish.

Coarse Thread Screws, Star Drive, 316, Csk Ribbed, T17 Tip

CODE: SSTCKCPR6G...

Coarse Thread Star Drive Decking Screw with T17 Tip

  • 10G X 2
  • 10G X 2 1/2

(Square drive and other sizes available)

Commonly used for both soft and hardwood decking.

Flush Finish.

Small head diameter.

Star drive allows for greater torque.

Heads look uniform across screws, unlike Square Drive heads which need to be lined up to achieve a uniform look.

Use 10g Quick Cut for counter sinking/drilling pilot hole.

T25 High Torque tip to drive screw.

Pre-drilling may be required and recommended for hardwood and board ends.

Wide Board Decking Screw 316, Csk Ribbed, Star/Socket Drive. Square Thread, T17 Tip

CODE: SSTCKCPR6G...

Wide Board Ribbed Decking Screw Socket Drive T17 Tip

Wide Board Ribbed Decking Screw Star Drive T17 Tip

  • 12G X 65mm (available in 316 SS & 316 SS Bronze Finish)
  • 12G X 80mm
  • 12G X 100mm
Commonly used for both soft and hardwood decking up to 30mm thick.

Flush Finish.

Square threads require less torque to drive in screws.

Heads look uniform across screws, unlike Square Drive heads which need to be lined up to achieve a uniform look.

Use Quick Cut for counter sinking/drilling pilot hole.

Use 4mm Max Torsion tip to drive screw.

Pre-drilling may be required and recommended for hardwood and board ends.

Screws are 316 SS and are heat treated to create a bronze finish.

Wide Board Decking Screw 316, Csk Skt Drive, T17 Tip

CODE: SSTCKCP6...

Wide Board Decking Screw Socket Drive T17 Tip

  • 12G X 2-1/2
  • 12G X 3
Commonly used for both soft and hardwood decking up to 21mm thick.

Larger head to reduce pull-through on larger softwood boards which may experience more movement.

Heads look uniform across screws, unlike Square Drive heads which need to be lined up to achieve a uniform look.

Use Quick Cut for counter sinking/drilling pilot hole.

Use 4mm Max Torsion tip to drive screw.

Pre-drilling may be required and recommended for hardwood and board ends.

Bugle Batten Screw 316, Skt Drive Ribbed, T17 Tip

CODE: SSTCKCE6G14...

Bugle Batten 316 Socket Drive T17 Tip

  • 14G X 2
  • 14G X 3
  • 14G X 4
  • 14G X 5
  • 14G X 6
  • 14G X 7
  • 14G X 8
Commonly used for both soft and hardwood wide board decking up to 65mm thick.

Flush Finish

Heavy duty screw with an industrial look

High pull out loads.

Heads look uniform across screws, unlike Square Drive heads which need to be lined up to achieve a uniform look.

Use Quick Cut for counter sinking/drilling pilot hole.

Use 5mm Max Torsion tip to drive screw.

Pre-drilling may be required and recommended for hardwood and board ends.


Our comprehensive decking screw guide shows the difference between each decking screw application and the advantages for each screw.


Stainless steel fasteners embedded in some high tannin timbers such as Garapa may cause localised tannin stains on the surface of the timber.

Bronze finish is a 'vintage' look and may wear off when installed in high traffic areas, cleaned with abrasive methods or damaged during installation.

This information is a guide, and the decision of which product to use and how to install it is the customer's decision, with them taking into account all the specific factors of the situation e.g. timber type, environment, etc. Anzor does not accept liability for the application of this information.

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