We are closed from Monday, Dec 23rd and will reopen on Monday, Jan 6th. Any orders received during this time will be processed in the New Year.
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Get it by Tuesday, Dec 31
£19.99 Flat Shipping + VAT £19.99 flat shipping is applicable on orders with an aggregate weight less than 10kg. Orders exceeding 10kg will be charged default shipping rates
Payment Methods
Delivery Partners
Step 1 Add the items into your cart or submit a Purchase order
Step 2 Checkout, select NET30 payment (provide company registration and VAT number)
Step 3 Delivery via TNT or Royal Mail and receive invoice for payment in 30-days
Step 4 Make payment via BACS to our factoring partner,
| Item | Carriage Bolt |
| Drill Size | 5/16" |
| Finish | Zinc-Plated |
| Grade | A |
| Head Dia. | 0.688 to 0.719" |
| Head Height | 0.156 to 0.176" |
| Head Type | Round |
| Length | 3" |
| Material | Low Carbon Steel |
| Square Height | 0.156 to 0.187" |
| Square Width | 0.307 to 0.324" |
| Tensile Strength | 60,000 PSI |
| Thread Size | 5/16-18 |
| Ship weight (kg) | 1.43 |
| Ship height (cm) | 2.54 |
| Ship length (cm) | 32.99 |
| Ship width (cm) | 17.2 |
| HS code | 7318152055 |
Contact your account manager right away to get personal advice.
We're available Monday through Friday, from 07:30 until 17:00.
Trade pricing is available for 
Order Value should be £500+