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8g (4.20mm) Galvanised Countersunk Wing Phillips (PH2) Coarse Metal Self Drilling Screws

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PH2 x 50mm Hobson IMPAX Phillips Driver Bit ***Bundle Buy***

$2.50($2.50/ea)

PH2 x 50mm Alpha ThunderMAX Phillips Driver Bit ***Bundle Buy***

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PH2 x 100mm Alpha ThunderMAX Phillips Driver Bit ***Bundle Buy***

$7.00($7.00/ea)

8g Trim Head Hobson EZ-Bit Decking Tool ***Bundle Buy***

$19.00($19.00/ea)

Pack of 5 - 3.2mm x 46mm Replacement Drill Bits ***Bundle Buy***

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10g (4.80mm)

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Technical Specifications

Specs - Countersunk Rib Phillips Metal Self Drilling Screw Wing Galvanised.pdf Hobson Screw Guide.pdf

More Information
System of Measurement	Screw Gauge
Product	Self Drilling Metal Screw with Wings
Colour	Grey
Head Type	Countersunk Head Ribbed
Nibbed	Between 4 - 8 Ribs depending on stock available
Size	8g (4.20mm)
Thread Pitch	18 TPI
Thread	Coarse
Thread Direction	Right Hand
Corrosion Protection Level	Excellent
Internal or External	External
Class Grade	Class 3 / 4
Material	Hardened Steel
Finish	Galvanised
Product Diameter (d)	4.00 - 4.20mm
Head Diameter (a)	7.70 - 8.10mm
Screw Length (l)	Overall length measurement includes head, thread and drill point
Head Height (h)	3.45mm
Drill Point Length (p)	10.00mm
Min to Max Steel Thickness	1.00 - 2.50mm
Drive Size (as)	PH2
Screw Point	Drill Point
Drive Type	Phillips
Recommended Drill Speed	2500 rpm
Material Application	Drill Point c/w Wings
Installation	For best results install using a DRILL driver. IMPACT drills are often too POWERFUL
Standard Made To	AS3566
Brand	Tower
Alternative Brands	Bremick Fasteners

Dimensional data is a guide only. Tolerance differences exist between brands and batches

Description

Countersunk Head Self Drilling Screws aggressive self embedding head means this screw can be quickly applied without the need to pre-drill or countersink, saving loads of time during application. The two protruding wings create clearance through the timber and break off during entry into the steel.
Installation: Install using a PH2 phillips driver bit in a cordless drill driver at a MAX speed of 2500 rpm. Whilst we know in most instances using an IMPACT driver does work it is recommended NOT to use an IMPACT driver due to the power, speed and drilling nature and action of an Impact drill.
Material / Coating: Galvanised coated fasteners have been used for roofing, cladding, steel buildings, trailers, bridges, fencing, power poles, outdoor furniture, house framing, fencing and marina’s for over 150 years. Since galvanising was first introduced, we have seen a lot of new terms like Class 3, Class 4, B8, Climaseal 3, Climaseal 4, Climaseal 5, Armour Ceramic Coating, Mechanical Galvanised and Ruspert. They are all variations of the original galvanise. All metal self drilling screws from Bolt and Nut Australia are guaranteed to comply to a minimum of Class 3 and extend to Class 4 and the ultimate of protection B8. Please refer to our technical pages for more information or contact us for advice on choosing the right fastener
What does TPI stand for?: TPI stands for “threads per inch” which literally means the number of threads within each inch on a screw, a bolt, or a fastener. To determine the TPI of a screw, count the number of threads contained within an inch of length on the fastener. If the screw is less than an inch measure ½” of an inch and multiply the number you counted by 2
Length of Thread: Always choose a self driller with enough threads to fully engage in the base metal. For attachments to 1/4" base steel, a self-drilling screw should have at least 1/4" of threads. It is helpful, but not critical, that the threads also engage in the material being fastened. The head of the fastener provides the bearing force for the material being fastened, while the threads provide the clamping force in the base material
To determine Thread Length: Before buying countersunk screws, it is recommended to work out the overall length you need. Because the overall length includes head height and drill point length you have to add the 2 together then minus that from the overall length to get the approx thread length. For example: a 10g-16 x 35mm countersunk self drilling screw has a 4mm head height and a drill point of approx. 12.50mm. This equals 16.50mm approx, so, on a 35mm long screw you are going to be left with approx. 18.50mm of thread. This detail is often overlooked and it is only when the screws turn up you find they are too short and your project is delayed. All this data along with other specifications is on the specifications table and as always, measurements are approx and do vary between batches and suppliers, if critical always check with us prior
Drill Point Style: A twist drill style hardened point for fast driving into light gauge sheeting, cladding panels, sections and assemblies. The length of the drilling flutes determine the amount of drilling swaft that can be expelled and therefore the depth of metal can be drilled
How to measure the length of a Metal Screw: Fastener length is generally measured from the point where the surface of the material will be when the fastener is installed to the end of the fastener. Thus, fasteners with heads that sit above the surface are measured from under the head to the end of the fastener, while fasteners that sit flush with the surface are measured from the top of the head to the end of the fastener
Need a Driver Bit?: A large range of suitable driver bits are available in the "Driving" section of our website
Measurements: Every effort has been made to ensure all measurements on our site are accurate and to the relevant standard, they should only be used as a guide. If you see a problem with our specifications please contact us
Dimensions: Our stock is sourced from various suppliers, therefore differences may exist between batches such as height, length, width, head style, visible stamped markings, appearance or actual finish
Photos: are of the product but may not be the actual diameter, length, thread length, colour you require, always refer to the size in the description and additional specifications data provided prior to ordering
Updating our site: If you see any problems with any of our specifications or you require additional information please contact us
Disclaimer: Technical data and specifications were researched and compiled from numerous industry sources for the sole purpose of providing basic information. All material is advisory only and its use by anyone is entirely voluntary. Reliance on it for any purpose by anyone is at the sole risk of that person, and Bolt and Nut Australia is not responsible for any loss, claim or damages arising therefrom. In developing this information, Bolt and Nut Australia has made a determined effort to present it accurately
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Delivery

Orders UNDER $30

Weigh less than 500grams

Exceptions: Tools, Kits, Bulky items = Sent as a parcel with tracking

Small orders that fit into the slot of your Letterbox are sent:

FREE with Aust Post Letter delivery with NO TRACKING and delivery between 4-12 business days

Select a Quicker delivery service

$7.00 Parcel Delivery 2-7 business days
From $12.00 Express Delivery 1-4 business days
From $14.00 StarTrack PREMIUM Express Delivery 1-3 business days

Click & Collect - Warehouse pickup

Unit 9, 93 Rivergate Place, Murarrie, QLD

Place your order online and we will have it ready within 2 hours. Call if required sooner
Pickup times between 8am - 4pm, Monday - Friday

Orders OVER $30

Weigh more than 500grams

Included is orders under $30 but weigh more than 500grams or wont fit in the slot of your letterbox

Including Large and Bulky heavy orders are sent:

FREE as a Parcel Delivery WITH TRACKING and delivery between 2-7 business days

Select an Express delivery service

From $12.00 Express Delivery 1-4 business days
From $14.00 StarTrack PREMIUM Express Delivery 1-3 business days

Click & Collect - Warehouse pickup

Unit 9, 93 Rivergate Place, Murarrie, QLD

Place your order online and we will have it ready within 2 hours. Call if required sooner
Pickup times between 8am - 4pm, Monday - Friday

All delivery dates are estimated and depend on stock availability, delivery location, service chosen, size of order, time of year, when order was placed e.g long weekends or sale periods.

Further delivery information can be found on our Delivery page

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