For Custom Hex Bolt (GHJ Series) — GB/T 5783 / ISO 4017 (Series 009) in A2 Stainless Steel, the controlling decisions are corrosion, strength and service temperature. This guide summarizes those three for A2 Stainless Steel Custom Hex Bolt (GHJ Series) — GB/T 5783 / ISO 4017 (Series 009) and lists every size we supply.
Why Choose A2 Stainless Steel for Custom Hex Bolt (GHJ Series) — GB/T 5783 / ISO 4017 (Series 009)
The most common stainless grade for indoor and general outdoor fasteners. For custom hex bolt (ghj series) — gb/t 5783 / iso 4017 (series 009), this matters when good general corrosion resistance is the primary requirement.
Mechanical & Physical Properties
| Grade designation | A2-70 (304) |
|---|---|
| Magnetic response | Largely non-magnetic |
| Service temperature | approx. -200 °C to +400 °C |
| Corrosion characteristic | Good general corrosion resistance |
Corrosion Behavior in Service
A2 (304) gives excellent atmospheric and most-water corrosion resistance and is the most common stainless for Custom Hex Bolt (GHJ Series) — GB/T 5783 / ISO 4017 (Series 009) in indoor and general outdoor service. In chloride-bearing environments (marine air, road salt, swimming pools) consider stepping up to A4 (316).
Comparable Grades
For Custom Hex Bolt (GHJ Series) — GB/T 5783 / ISO 4017 (Series 009), the alternative stainless grade is A4 (316). A2 (304) suits general indoor and outdoor service; A4 (316) adds molybdenum for marine and chloride environments. Where higher strength matters more than corrosion, switch to plated alloy-steel class 8.8 or 10.9.
Sizes of Custom Hex Bolt (GHJ Series) — GB/T 5783 / ISO 4017 (Series 009) Available in A2 Stainless Steel
| Size designation | Outer diameter / width (mm) | Length / height (mm) | Bore / thread (mm) | Material | Reference standard |
|---|---|---|---|---|---|
| Size 1 | 10 | 20 | 6 | C45 carbon steel | GB/T 1804-m |
| Size 2 | 12 | 25 | 8 | C45 carbon steel | GB/T 1804-m |
| Size 3 | 16 | 32 | 10 | C45 carbon steel | GB/T 1804-m |
| Size 4 | 20 | 40 | 12 | C45 carbon steel | GB/T 1804-m |
| Size 5 | 25 | 50 | 16 | C45 carbon steel | GB/T 1804-m |
| Size 6 | 32 | 63 | 20 | C45 carbon steel | GB/T 1804-m |
| Size 7 | 40 | 80 | 25 | C45 carbon steel | GB/T 1804-m |
| Size 8 | 50 | 100 | 30 | C45 carbon steel | GB/T 1804-m |