High Strength Expansion Shell Mining Rock Bolts Mechanical Roof Bolt
High Strength Expansion Shell Mining Rock Bolts Mechanical Roof Bolt
Product Specification
| Stamping Bracket | |||||||||||
| To | Drawing No | Certificate No. | |||||||||
| Supplier | PO NO. | SBR003 | Shipped QTY | 2100 | |||||||
| Inspector | Supervisor | Material | |||||||||
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Min. | Max | Compliance | ||||||||
| A | 49.0 | 48.7 | 49.3 | OK | |||||||
| B | 8.5 | 8.3 | 8.7 | OK | |||||||
| C | Ø34 | 33.7 | 34.3 | OK | |||||||
| Thickness | 1.2 | 1.1 | 1.3 | OK | |||||||
| KS | Remove bur,Corrosion Protection | OK | |||||||||
| Expansion Leaves | |||||||||
| To | Drawing No | Certificate No. | |||||||
| Supplier | PO NO. | SBR003 | Shipped QTY | 2100 | |||||
| Inspector | Supervisor | Material | Q235 | ||||||
![]() |
Min. | Max | Compliance | ||||||
| A | 76 | 75.7 | 76.3 | OK | |||||
| B | 29 | 28.8 | 29.2 | OK | |||||
| C | 9 | 8.8 | 9.2 | OK | |||||
| D | 12 | 11.8 | 12.2 | OK | |||||
| E | 2 | 1.9 | 2.1 | OK | |||||
| F | 25 | 24.8 | 25.2 | OK | |||||
| G | 8.0 | 7.8 | 8.2 | OK | |||||
| KS | Remove bur,Corrosion Protection | OK | |||||||
Our Advantage
2. Provide customers with one-stop solution and purchasing requirements
3. Complete production process and products
4. Design and recommend suitable products for customers
5. Cheap price, high quality, fast delivery time
6. Accept small orders
7. Credit security
8. Communicate well with customers, quick reply and quote
FAQ
How long can I expect to get the customized sample?
After you pay the sample charge and send us confirmed files, and the mould is existing in our factory, the samples will be ready in 10-15 working days;
If the mould is not existing, we need to open a new mould, the samples will be ready in 15-18 working days; The samples will be sent to you via express and arrive in 3-5 working days. You can use your own express account number or prepay us if you do not have an account.
What about the lead time for mass production?
Honestly, it largely depends on the order quantity and the season when you place the order. As usual, 20-35 working days will be OK. If you are very urgent, we will try our best to do it.
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.




