We'll be closing for the year at 1pm on 23rd December 2024. Regular business hours will resume on Monday 6 January 2025.

We'll be closing for the year at 1pm on 23rd December 2024. Regular business hours will resume on Monday 6 January 2025.

Abrasives
- Avos
- Backing Pads
- Bandsaw Blade
- Bobbin Grease
- Cup Brush
- Cutting
  - Diamond Blade
  - Drop Saw Cutting
  - Masonry Cutting
  - Steel Cutting Discs
- Flap Disc
- Flap Wheel
- Grinding
  - Grinding Disc
  - Grinding Wheels
  - Taper Cups
- Rotor Broach
- Sanding
  - Cloth Rolls
  - Fibre Discs
  - Floor Sanding Rolls
  - Roloc
  - Sanding Belts
  - Sanding Rolls
  - Sanding Sheets
  - Speed Grips
  - SpeedLok Discs
  - Stick n Sand
- Scotch Brite
- Stripx
- Surface Conditioning
- Wire Hand Brush
- Wire Wheel
Bolts High Tensile
- Bolts Grade 10.9
- Bolts Grade 8.8
- Bolts Metric Fine
- Bolts UNC
  - Grade 5
  - Grade 8
  - Grade 9
- Bolts UNF
  - Grade 5
  - Grade 8
  - Grade 9
- Cup Head Bolts Grade 8.8
- Flange Bolts Metric
- Flange Bolts UNF
- Hex Set Screws
- Plow Bolts
Bolts Mild Steel
- Bolts Hex Grade 4.8 Galvanised
- Coach Screws
- Cup Head (Coach) Bolts
- Hex Set Screws Grade 4.8
Bolts Structural
- Fascia Bolts
- Hollo Bolts
- Purlin Bolt & Nut
- Squirter Washer
- Structural Bolts
- Structural Nuts
- Structural Washers
- Weathering Steel Bolts
Concrete Fasteners
- Chemical Anchoring
- Chemical Studs
- Concrete Anchors
  - Drive Pins
  - Drop In Anchors
  - Metal Pin Anchors
  - Screw Bolts
  - Seismic Anchors
  - Sleeve Anchors
  - Spikes
  - Through Bolts
  - Wall Anchors
- Concrete Screws
  - Grabcon Screws
  - Titan Screws
  - Tomahawk Screws
  - Walldog (Dog-Bite) Screws
- Hole Cleaning Brush
- Nylon Anchors
- Suspension Anchors
- Vertigo Hangers
Drill Bits
- Auger Bits
- Cobalt Drills
- Drill Sets
- Heli-Coils
- High Speed Drills
- Holesaws
- Long Series
- Masonry Drills
- Reduced Shank Drills
- Rotor Broach
- Screw Driver Bits
- Smart Bit
- Spade Bits
- Step Drill
- Stub Drills
- Tap & Dies
Hinges
- Back Flap Hinges
- Fixed Pin Hinges
- Flush Butt Hinges
- Loose Pin Hinges
- Overlay Hinges
- Piano Hinges
- Radius Hinges
- Wide Throw Hinges
Nails and Staples
- Bradders
- Brads
- Coil Nails
- Gun Nails
- Loose Nails
  - Annular Groove
  - Brackets
  - Clouts
  - Decking
  - Fibre Cement
  - Flat Head
  - Jolt Head
  - Metal Tile
  - Panel Pin
  - Plasterboard
  - Stainless
  - Staple Slice
  - Twist Spring Heads
  - Weather Seal
- Nailer Gun
- Staple Gun
- Staples
Nuts
- Brass Nuts
- Castle Nuts
- Channel Nut
- Conelock Nuts
  - Metric
  - UNC
  - UNF
- Deep Nuts
- Dome Nuts
- Flange Nuts
- Half Lock Nuts
- Hank Bush
- Hex Nuts
  - Metric
  - UNC
  - UNF
- Nutserts
- Nyloc Nuts
  - Metric
  - UNC
  - UNF
- Nylon Nuts
- Shear Nuts
- Square Nuts
- Tee Nuts
- Wing Nuts
Rivets
- All Aluminium (AA)
- Coloured (AS)
- Copper
- Countersunk
- Dome Head Aluminium (AS)
- Dome Head Monel (MS)
- Dome Head Stainless (STST)
- Dome Head Steel Zinc Plate (SS)
- Multigrip (AV)
- Nutserts
- Rivet Tools
- Sealed (TA)
- Structural Rivets
  - Bulb Lok Rivets
  - Lock Bolts SR Series
  - Magna Grip Lock Bolts
Screws
- Aluminium Joinery Screws
  - Lead Point
  - Raised Countersunk
  - Tek Screw Black
  - Tek Screw Pan
  - Truncated
- Batton Screws
- Deck Screws
  - Decking Screws
  - Truck Deck Screws
- Euro Screws
- Gutter Bolt & Nuts
- Hammer Driver Screws
- Hingefast Screws
  - Pozi
  - Square
- Machine Screws
  - Countersunk Head
  - Pan Head
  - Round Head
- Roofing Screws
  - Coloured Teks
  - Gutterfast Screws
  - Polycarbonate Screws
- Security Screws
  - Button Head
  - Countersunk Head
- Self Tapping Screws
  - Countersunk Pozi
  - Countersunk Square
  - Pan Pozi
  - Pan Square
- Surefast Screws
  - Multifast
  - Pozi Drive
  - Square Drive
- Tek Screw Steel
  - Button Head
  - Countersunk Head
  - Framing Screw
  - Hex Head
  - Pan Head
  - Series 500
  - Vortex Screws
  - Wafer Head
- Tek Screws Wood
  - Batten Screws
  - Blue Purlin Screws
  - Coloured Roofing Screws
  - Construction Screws
  - Drywall Screws
  - Hex Head
  - Vortex Screws
  - Wafer Head
- Wingtek Screws
Socket Screws
- Socket Allen Key
- Socket Button Screws
  - Metric
  - UNC
- Socket Cap Screws
  - BSW
  - Metric
  - UNC
  - UNF
- Socket Cap Screws Metric Fine
- Socket Countersunk Screws
  - BSW
  - Metric
  - UNC
  - UNF
- Socket Set (Grub) Screws
  - BSW
  - Metric
  - UNC
  - UNF
- Socket Shoulder Screws
Stainless Products
- Stainless Bolts
  - Stainless Coach Screws
  - Stainless Cup Head
  - Stainless Hex Bolts
  - Stainless Hex Set Screws
- Stainless Clips & Pins
  - Stainless Circlips
  - Stainless Cotter Pins
  - Stainless Hose Clips
  - Stainless R Clips
  - Stainless Roll Pins
- Stainless Hardware
- Stainless Hinges
- Stainless Keysteel
- Stainless Machine Screw
  - Countersunk Head
  - Pan Head
  - Round Head
- Stainless Nails
- Stainless Nuts
  - Stainless Dome Nuts
  - Stainless Flange Nuts
  - Stainless Half Lock Nuts
  - Stainless Hex Nuts
  - Stainless Nyloc Nuts
  - Stainless Tee Nuts
  - Stainless Wing Nuts
- Stainless Nutserts
- Stainless Security Screws
  - Button Head
  - Countersunk Head
- Stainless Self Tapping Screws
  - Countersunk Pozi
  - Countersunk Square
  - Pan Pozi
  - Pan Square
- Stainless Socket Screws
  - Stainless Button Screw
  - Stainless Cap Screw
  - Stainless Countersunk Socket
  - Stainless Socket Set (Grub)
- Stainless Threaded Rod
  - Imperial
  - Metric
- Stainless U Drive Screws
- Stainless Washers
  - Stainless Belleville Washers
  - Stainless Cup Washers
  - Stainless Flat Washers
  - Stainless Heavy Washers
  - Stainless Lock Washer
  - Stainless Nordlock Washers
  - Stainless Spring Washer
  - Stainless Square Washer
Threaded Rod
- Threaded Rod Connectors
- Threaded Rod High Tensile
  - Imperial
  - Metric
- Threaded Rod Mild Steel
  - Imperial
  - Metric
- Threaded Rod Stainless
  - Imperial
  - Metric
Washers
- Aluminium Bonded Washers
- Cup Washers
- EPDM Seal Washers
- Fibre Washers
- Flat Washers
  - Heavy Washers
  - Light Washer
- Hardened Washers
- Locking Washers
  - Belleville Washers
  - Disc Lock Washers
  - Lock Washers
  - Nordlock Washers
  - Schnorr Washers
  - Starlock Washers
- Nylon Washers
- Roofing Washers
  - Bonded
  - Polycarbonate
  - Spreader (Cyclone)
- Spring Washer
- Square Washers
- Tab Washers
- Taper Washers

Accessories
- Brass Inserts
- Bundle Wrap
- Cable Ties
- Channel Nut
- Grease Nipples
- H Packers
- Hacksaw Blades
- Keysteel
- Knife
- Lamson Bins
- Louvre Panel
- Nutserts
- Rags
- Safety Caps
- Shaft Collar
- Snips
- Tape
- Tape Measures
- Towball
- U Bolts
Building Products
- Concrete Anchors
  - Chemical Anchoring
  - Drive Pins
  - MKT Propping Bolts
  - Screw Bolts
  - Seismic Anchors
  - Sleeve Anchors
  - Square Washers
  - Through Bolts
- Concrete Drill Bits
- Concrete Screws
  - Grabcon Screws
  - Titan Screws
  - Tomahawk Screw
- Decking
- Foundation Prep
  - Marking Spray
  - Ground Chairs
  - Grout
  - Polythene
  - Polythene Tape
  - Release Agents
  - Safety Caps
  - Safety Mesh Fence
  - Steel Y Posts
  - Pretrolatum (Denso) Tape
- Nail & Staples
  - Brads
  - Coil Nails
  - Gun Nails
  - Loose Nails
  - Staples
- Packers
  - H Packers
  - Packing Shims
- Timber Connectors
  - Brackets
  - Connectors
- Rebar Tying Coil
- Screws
  - Blue Purlin Screws
  - Construction Screws
  - Decking Screws
  - Powerfast Screws
  - Python Screws
  - Quik Drive
  - Surefast Screws
  - Wood Tek
- Site Accessories
  - Chalk
  - Construction Clips
  - Impact Sockets
  - Pencils
  - Rags
  - Sabre Saw Blades
  - Safety
  - Snap Blade
  - String Lines
  - Tape Measures
- Threaded Rod Galvanised
- Tools
  - Bradders
  - Nailers
  - Staplers
- Weather Tighteness
  - DPC
  - Flashing Tape
  - Building Wrap
  - Silicone
  - Tapes & Sealers
Chemicals
- Allfast Silicone
- Bostik
- Chemtools
- CHEMZ
  - Automotive
  - Electrical Cleaners
  - Food Grade
  - Industrial
  - Marker Spray
  - Sanitisers
  - Zinc & Etch Primers
- Loctite
- Soudal
Clips & Pins
- Antiluce Fasteners
- Circlip
- Cotter Pin
- Dowel Pin
- E Clip
- Linch Pin
- R Clip
- Roll Pin
- Spire Clip
Lifting and Rigging
- Chain
- Eye Bolt
- Eye Nut
- Eye Pad
- Eye Strap
- Hose Clips
- Quick Link
- S Hook
- Shackle
- Spring Hook
- Thimble
- Turnbuckle
- Wire Rope
- Wire Rope Grip
Plumbing Products
- Accessories
  - Donaghys Plumbers Hemp
  - Thread Tape
- Concrete Anchors
  - Metal Pin Anchors
  - Nylon Anchors
  - Sleeve Anchors
  - Vertigo Hangers
  - Wall Plugs
  - Walldog
- Cutting Discs
- Dektites
- Drill Bits
  - High Speed Drills
  - Concrete Drills
  - Timber Drills
- Screw Driver Bits
- Gun Nails
- Rivets
  - Coloured Rivets
  - Aluminium (AS)
  - Monel (MS)
  - Dome Head Stainless (STST)
  - Zinc Plate (SS)
- Screws
  - Batten Screws
  - Surefast
  - Tek Screws Pan
  - Timber Blue Purlin Screw
  - Vortex Screws
- Silicone
- Threaded Rod
  - Hex Nuts
  - Rod Connectors
  - High Tensile
  - Mild Steel
  - Threaded Rod Stainless
- Toilet Pan Screws
Rivet Tools
Roofing Products
- Accessories
  - Bostik Wipes
  - Chalk
  - Drill Bits
  - Driver Bits
  - Gloves
  - Snips
  - String Lines
  - Tape Measures
- Rivets Coloured
- Dektites
- EPDM Washer
- Underlay
- Nails & Staples
  - Coil Nails
  - Gun Nails
  - Loose Nails
  - Staples
- Polycarbonate Washer
- Screws
  - Blue Purlin Screws
  - Roofing Screws Coloured
  - Polycarbonate Screws
  - Spouting Screws
  - Surefast Screws
- Silicone
- Profile Washers
- Tools
  - Bradders
  - Nailers
  - Riveters
  - Stapler
- Touch Up Paint
Safety Gear
- Ear Plugs
- Eye Wear
- Gloves
- Masks
Tools
- Delfast Tools
  - Bradders
  - Nailers
  - Staplers
- Rivet Tools
Window Products
- H Packers
- Drill Bits
- Masons PEF Rod
- Nylon Wall Plug
- Rags
- Screw Driver Bits
- Screws
  - Lead Point
  - Raised Countersunk
  - Self Tapping
  - Surefast
  - Tek Screws Black
  - Tek Screw Pan
  - Truncated
- Silicone
- Staples
- Touch up Paint

12G Self Tapping Countersunk Square Stainless 304

12G Self Tapping Countersunk Square Stainless 304

12G Self Tapping Countersunk Square Stainless 304

by Allfast Solutions

$0.35 ($0.30 ex. GST)

SKU STS1234CSQ

Length

20

25

32

40

50

65

75

Pack Size

100

Qty

Screw Gauge to Millimetres

4 Gauge = 2.84mm

6 Gauge = 3.51mm

8 Gauge = 4.17mm

10 Gauge = 4.83mm

12 Gauge = 5.49mm

14 Gauge = 6.15mm

16 Gauge = 6.81mm

18 Gauge = 7.47mm

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