PRODUCT DESCRIPTION

Metric Cup Head Bolt Only:

- **System of Measurement**: Metric

- **Product**: Cup Head Bolt Only

- **Head Type**: Cup Head

- **Size**: M8 (8mm)

- **Size & Thread Pitch**: M8 x 1.25p Coarse

- **Thread Pitch**: 1.25mm

- **Thread Direction**: Right Hand

- **Thread Type**: Metric - Coarse

Specifications:

- **Class Grade**: A4-70 G316

- **Material**: Stainless Steel

- **Length**: Refer to measurement in millimeters in the product description

Product Dimensions:

- **Product Diameter**: 7.78 - 8.00mm

- **Head Diameter**: 19.35 - 20.65mm

- **Head Height**: 4.12 - 4.88mm

- **Square Under Head Width**: 7.42 - 8.58mm

- **Square Under Head Height**: 4.40 - 5.60mm

- **Closest Size in Imperial**: 5/16"

- **Standard Made To**: DIN603

- **Brand**: Hobson Engineering

- **Alternative Brands**: Brighton Best | Bremick Fasteners | Inox World

Discover the Versatility of Cup Head Coach Carriage Bolts:

Cup Head Coach Carriage Bolts are the go-to solution for securely fastening wood to wood or steel, ensuring a firm grip with a matching nut to bind materials together. Crafted with a low-profile domed head and a square section beneath, these bolts are engineered to resist turning when the nut is tightened or removed. The square section embeds into the wood as the nut is tightened, eliminating the need for a second spanner. Widely utilized in structural support, timber framing, outdoor furniture, fencing, and retaining walls, they are an ideal choice for various applications, including garden benches and table furniture.

Material and Coating:

Constructed from Marine Grade Stainless Steel A4-70 G316, these bolts offer unparalleled corrosion resistance, making them suitable for use in marine, coastal, chemical, and food environments. Stainless steel's inherent non-magnetic properties ensure reliability, although slight magnetism may occur due to work-hardening during manufacturing. For a sleek finish, some of our stock comes with a smooth surface and no head markings. Test Certificates or Certificate of Conformity can be requested upon need.

Understanding Stainless Corrosion:

While stainless steel is inherently corrosion-resistant, improper installation or handling may lead to corrosion. The use of conventional steel tools or drills during installation can introduce minute steel particles onto the stainless steel surfaces, leading to rust when exposed to moisture or oxygen. This may result in a stained or tarnished finish, emphasizing the importance of proper handling techniques.

Differentiating Grade vs. Class:

Metric fastenings are classified as classes, while imperial ones are graded. Head markings on stainless fasteners denote the material grade and strength. For instance, G304 grade stainless may be marked as A2-70, G304, A2, or 304, while G316 grade stainless may be marked as A4-70, G316, A4, or 316. Note that some sizes may lack head markings due to stock availability.

Precise Specifications and Measurements:

Efforts have been made to ensure accuracy in all measurements provided on our site. However, as our stock is sourced from various suppliers, variations may occur between batches, including differences in height, width, visible stamped markings, appearance, or finish. We recommend referring to the size and additional specifications data provided before ordering to ensure compatibility.

Buy with Confidence:

With over 13 years of experience selling online and a vast inventory of over 22,000 stock lines, you can trust Bolts Nuts Screws Online for all your fastening needs.

For any concerns or additional information, feel free to reach out. Your satisfaction is our priority.

SHIPPING POLICY

Shipping Policy

Postage and handling fee within Australia now Free when the invoice total is more than $100 and $9.50 for orders below. Unable to offer this service to Western Australia, WA is now $16.90 Flat Fee

Due to the heavy nature of our product and the size of Australia in some cases Jimco Pty Ltd will not be able to deliver for these prices, when this is the case we will discuss possible extra delivery costs prior to processing the order.

Delivery Times

Small Orders (less than 5kg combined weight and of small dimensions)
Where possible we send out all small orders using Australia Post, Startrack Express or Fastways.  This is usually when the orders are small in dimensions and weigh less than 5kg.

We cannot guarantee sending with any particular service and provide no guarantee of a next day delivery, however next day delivery is common when the customer chooses the express option.

All Other Orders
We have a range of shipping carriers which we utilise to distribute larger/heavier orders.

The following delivery times are a rough guide to how many days after dispatch your order will arrive.

• Perth Metropolitan 1 to 7 Days after dispatch, Depending on the location of the stock.
• Sydney Metropolitan Area 1 to 3 Days after dispatch, Depending on the location of the stock.
• Rest of NSW - 1 to 4 business days
• Melbourne, Adelaide - 1 to 5 Days after dispatch, Depending on the location of the stock.
• Brisbane Next Day
• Darwin & Hobart - 1 to 7 Days after dispatch, Depending on the location of the stock.
• Remote / Country - Please phone or email for ETA.

NOTE: The above times are estimates only and may depend on the location of the stock required to fulfill your order.

We reserve the right to ship from our warehouse or a supplier's warehouse direct so please check with us before ordering if you have a time sensitive order.