# National standard internal expansion bolts, internal explosion-proof screws, internal force-operated flat-top explosion-proof screws, and top-explosion screws (M6, M8, M10, M12, M16).

## Details

- **Price:** 0.03 USD - 0.29 USD
- **Vendor:** DDY GROUP CO.,LTD.
- **Tags:** iron screws

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Specifications: M6*25 | 0.03 USD | In stock |
| Specifications: M8*30 | 0.05 USD | In stock |
| Specifications: M10*40 | 0.07 USD | In stock |
| Specifications: M12*50 | 0.16 USD | In stock |
| Specifications: M16*65 | 0.29 USD | In stock |

## Images

- National standard internal expansion bolts, internal explosion-proof screws, internal force-operated flat-top explosion-proof screws, and top-explosion screws (M6, M8, M10, M12, M16).
- National standard internal expansion bolts, internal explosion-proof screws, internal force-operated flat-top explosion-proof screws, and top-explosion screws (M6, M8, M10, M12, M16).
- National standard internal expansion bolts, internal explosion-proof screws, internal force-operated flat-top explosion-proof screws, and top-explosion screws (M6, M8, M10, M12, M16).
- National standard internal expansion bolts, internal explosion-proof screws, internal force-operated flat-top explosion-proof screws, and top-explosion screws (M6, M8, M10, M12, M16).
- National standard internal expansion bolts, internal explosion-proof screws, internal force-operated flat-top explosion-proof screws, and top-explosion screws (M6, M8, M10, M12, M16).

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> Source: [DDY GROUP CO.,LTD.](https://ddysupply.com/products/national-standard-internal-expansion-bolts-internal-explosion-proof-screws-internal-force-operated-flat-top-explosion-proof-screws-and-top-explosion-screws-m6-m8-m10-m12-m16)
> Updated: 2026-08-11