M10 (10mm) Stainless A4-70 G316 Countersunk In/Hex (6mm) Coach Screws

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57CS10M_configurable

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M8 (8mm)

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Technical Specifications

Specs - Countersunk Coach Screw Metric Stainless G316.pdf Imperial vs Metric Strength Chart.pdf Bolts Markings.pdf

System of Measurement Metric
Product Countersunk Coach Screw
Head Type Countersunk Head
Size M10 (10mm)
Thread Pitch 4.50mm
Thread Coarse
Thread Direction Right Hand
Corrosion Protection Level Ultimate
Class Grade A4-70 G316
Material Stainless Steel
Length (l) Select from the dropdown
Thread Length (t) Thread length will be at least 60% or more for the length of screw* see below for more info
Product Diameter (d) 9.42 - 10.58mm
Head Diameter (a) 19.25 - 20.00mm
Thread Length Data (t) Choose your length to view
Head Height (h) 6.20 - 6.30mm
Drive Size (as) 6mm
Drive Type Internal Hex
Closest size in imperial 3/8"
Standard Made To HEC / A4
Brand Hobson Engineering

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

Description

Countersunk In/Hex Coach Screws are a heavy duty screw used to fix wood to wood or metal to wood. They are designed with a hexagonal head and, therefore, require a wrench or socket spanner to be tightened or unscrewed. The screws have broad heads, preventing them from pulling into the wood and enabling them to compress the substrates together, making them a good choice for joints that see heavy use. Coach screws can also be used in conjunction with wall plugs for anchoring heavy objects, such as TV arm or satellite dishes, into masonry or concrete. It is, however, important to note that Coach Screws should never be over tightened as this could cause the screw to break off
Thread Lengths * = Measurements provided are the MIN thread length and are provided to be used as a GUIDE only. They do vary between brands and batches and your delivery may be shipped with 2 thread lengths. If thread length is critical, please contact us prior to ordering and we will check the stock
Pilot holes = All Coach Screws require a pilot hole before they're screwed into place, no matter what type of wood you are working with. Drill the pilot hole 2mm smaller than the size coach screw being used.
Material / Coating: Marine Grade Stainless Steel A4-70 G316 is the ultimate corrosion resistance fastener. Designed to be used in all conditions. The best fastener for marine, coastal, chemical and food environments. Stainless steels are largely non-magnetic but it is common for stainless steel fasteners to show a small degree of magnetism which is a result of work-hardening during the manufacturing process
Can Stainless corrode?: Stainless steel is corrosion-resistant but not corrosion-proof and corrosion can occur if the material is installed or handled incorrectly. The use of tools and drills made from conventional steel during the installation of stainless steel fasteners may also lead to problems. Even the hardest of tools can produce debris that leaves minute steel particles on the stainless steel fastener surfaces or in pre-drilled holes. It is these particles that often rust when exposed to moisture or oxygen and can result in a stained or tarnished finish to the stainless steel material
Grade v Class Difference: Imperial fastenings are referred to as grades, and metric fastenings are referred to as classes. Both have marking systems that make it possible to determine grade and class. An example is a ½” UNC bolt with 5 lines on the head is grade 8 and 3 lines is grade 5, both are regarded as high tensile. Metric bolts are slightly different, if it has 4.6 then it is mild steel and 8.8 is high tensile. The markings on a stainless fastener indicate the grade of material and strength, e.g. material G304 grade will have one of the following markings: A2-70, G304, A2, 304 and G316 grade stainless will have one of the following: A4-70, G316, A4, 316
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
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 or length you may require, always refer to the size in the description and additional specifications data provided prior to ordering
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
Updating our site: If you see any problems with any of our specifications or you require additional information please contact us
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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 $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

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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