Find Your GB 5789 Specification
Open a material group to compare thread sizes, markings and length options. Choose a length from the same row as your required material and thread.
All dimensions are in millimetres. Thread is shown as diameter × pitch. On mobile, swipe a table sideways to see all columns.
304 Stainless Steel · 44 catalogue items
| Thread diameter × pitch |
Head marking | Thread / version | Length options (mm) |
|---|---|---|---|
| M5 × 0.8 | A2-70 TonG | Enlarged hex flange; serrated bearing face | 10 |
| M5 × 0.8 | A2-70 TonG | Full thread Enlarged hex flange; serrated bearing face |
12 · 14 · 16 · 20 · 25 · 30 · 35 · 40 |
| M6 × 1 | A2-70 TonG | Full thread Enlarged hex flange; serrated bearing face |
10 · 12 · 16 · 20 · 25 · 30 · 35 · 40 |
| M8 × 1.25 | A2-70 TonG | Full thread Enlarged hex flange; serrated bearing face |
16 · 20 · 25 · 30 · 35 · 40 · 45 · 50 · 55 · 60 |
| M10 × 1.5 | A2-70 TonG | Full thread Enlarged hex flange; serrated bearing face |
20 · 25 · 30 · 35 · 40 · 45 · 50 · 60 |
| M12 × 1.75 | A2-70 TonG | Full thread Enlarged hex flange; serrated bearing face |
20 · 25 · 30 · 35 · 40 · 45 · 50 · 55 · 60 |
Fast Dispatch for Stocked Items
Items available in Tongming stock can usually be dispatched in around 3 days. Stock and dispatch timing are confirmed with your quotation.
Send Your Specification
Include GB 5789, material, diameter × pitch × length, head marking, version and quantity. Attach a drawing when dimensions or inspection requirements need clarification.
Fastener supply experience since 2005. Nanjing Tongming provides experienced product coordination and competitive quotations for project and repeat purchasing.
Product photos illustrate the series. Markings, dimensions, thread coverage and finish depend on the quoted item. Catalogue listing does not indicate live stock.


