12g (5.50mm) Galvanised Countersunk Square (SQ3) Series 500 Fine Metal Self Drilling Screws

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09C12500C4_configurable

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Technical Specifications

Specs - Series 500 Countersunk Square Metal Fine Self Drilling Screw Galvanised.pdf Hobson Screw Guide.pdf

System of Measurement Screw Gauge
Product Series 500 Self Drilling Metal Screw
Head Type Countersunk Head
Size 12g (5.50mm)
Thread Pitch 24 TPI
Thread Fine
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) 5.30 - 5.40mm
Head Diameter (a) 10.50 - 10.80mm
Screw Length (l) Overall length measurement includes head, thread and drill point
Head Height (h) 3.80mm
Drill Point Length (p) 17.00mm
Min to Max Steel Thickness 3.00 - 12.00mm
Drive Size (as) SQ3
Screw Point Drill Point
Drive Type Square
Recommended Drill Speed Under 3000 rpm
Closest size in mm 5.50mm
Closest size in imperial 0.22"
Standard Made To AS3566
Brand Tower

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

Description

Series 500 Countersunk Head Self Drilling Screws have an extended drill point for drilling through steel up to 12mm by creating a hole. Commonly used for cladding and metal roofing, carports, sheds, garages and general construction when you need to drill into thicker than normal steel and require a counterunk flush finish.
Installation: Install using a SQ3 Impact rated square driver bit in a impact power tool, a large range of bits are available in the drilling driving tools section of our website.
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 count ½” of an inch and multiply 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: these 12g-24 series 500 countersunk screws have a head height if 5.50mm head height and a drill point of approx. 17.00mm. This equals 22mm approx, so, on a 50mm long screw you are going to be left with approx. 28mm 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:Extended (no.5) series 500 point is designed for drilling through steel up to 12mm thick
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, width, 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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From $10.00 Express Delivery 1-4 business days
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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 - 5pm, 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 $10.00 Express Delivery 1-4 business days
From $12.00 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 - 5pm, 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 on this website

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Supplier Details

MPN	SDCSQCE12-2438, SDCSQCE12-2450, SDCSQCE12-2465, SDCSQCE12-2480, SDCSQCE12-24100
UPC	9352988095198, 9352988060387, 9352988065269, 9352988085304, 9352988075176