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Our Stainless Steel SS304/SS316 Hex Head Connector Bolt is a high-performance fastening solution engineered for demanding industrial scenarios, produced by HT&FST – a professional stainless steel fasteners factory based in China. This bolt adheres to global standards like DIN933 and DIN912 for standard models, while also supporting custom designs (e.g., bolts with holes, adapter bolts) to meet unique project requirements.
The flagship model, M6X60+8, features precise dimensions: thread diameter M6, stud length 60mm, thread length 8mm, and hexagon opposite side 10mm (note: single-batch measurement data is for reference; actual products prevail). Crafted from two premium stainless steel grades—SS304 (UNS S30400, W.Nr 1.4301) and SS316 (UNS S31600, W.Nr 1.4401)—it balances durability and corrosion resistance. With 10,000 pieces in stock for immediate delivery, and EN10204-3.1B certification, it guarantees compliance with strict industry quality benchmarks.
SS304 Stainless Steel: Boasts a density of 7.93 g/cm³ and a melting point of 1398–1454°C. Its minimum mechanical properties (tensile strength 520 N/mm², yield strength 205 N/mm², elongation rate 40%, Brinell hardness ≤187 HB) make it ideal for dry or mild corrosive environments.
SS316 Stainless Steel: Offers enhanced corrosion resistance with a density of 7.98 g/cm³ and melting point of 1345–1450°C. It shares SS304’s robust mechanical strength but adds molybdenum, making it resistant to chloride-induced pitting—perfect for marine or chemical settings.
Dimensional Accuracy: Strict quality control ensures consistent thread fit (e.g., internal thread M6 for the M6X60+8 model) and hex head alignment, reducing installation errors.
Customization Support: Covers size ranges from M2.5 to M36; OEM services are available via customer drawings or samples for non-standard designs.
Bright & Clean Finish: Enhances aesthetics and prevents surface contamination.
Flexible Packaging: Standard packaging (bulk in boxes → cartons → pallets) can be customized for logistics needs (e.g., moisture-proof bags for marine shipping).
Sample Availability: Free samples allow pre-order testing for compatibility and performance.
Food & Pharmaceutical Machinery: SS304 Hex Head Connector Bolt features a non-porous surface that resists bacterial growth, making it ideal for securing mixers, storage tanks, and processing lines. It meets strict hygiene standards, ensuring compliance with food-grade and pharmaceutical industry requirements.
Marine & Coastal Projects: SS316 variants (with molybdenum) withstand saltwater corrosion.Perfect for fastening deck fittings, offshore pipeline components, and coastal architectural structures—preventing rust in high-humidity, chloride-rich environments.
Chemical Processing Plants: Used to secure reactors, acid transfer pipelines, and storage tanks. SS304 works for mild chemicals (e.g., dilute acids), while SS316 excels in sulfuric acid or salt-rich media, ensuring long-term stability.
Heavy-Duty Industrial Equipment: Its 520 N/mm² tensile strength and precise thread fit (e.g., M6 internal thread for M6X60+8 model) make it reliable for conveyors, pumps, and compressors—resisting vibration and frequent use.
A1: SS304 is cost-effective for dry/indoor use, while SS316’s molybdenum content delivers superior chloride resistance. Choose SS316 for saltwater, coastal, or chemical environments; SS304 for mild conditions.
A2: Yes! Share your drawing or sample, and our engineering team will develop custom bolts (e.g., longer studs, unique thread pitches). Lead time for custom orders is 2–4 weeks.
A3: T/T and Western Union are accepted for all orders. For orders over USD50,000, L/C (Letter of Credit) is available for mutual security.
A4: Request free samples to test thread fit, corrosion resistance, and mechanical strength. We also provide EN10204-3.1B certification for material composition and performance.
SS304 316 Adapter hex shank head bolt
Name | connetor hex head with inner thread bolt |
Standard | as required |
Size Range | M2.5-M36 |
Finish | Bright&Clean |
Marking | No Marking |
Material | SS304,A2,1.4301; SS316,A4,1.4401 |
Grade | Grade A2 & A4 |
Certificates | EN10204-3.1B |
Non-standards | OEM is available, according to drawing or samples |
Samples | Samples available |
Package | Bulk in box and then in cartons, then on pallets,or according to customers' requirement. |
Payment | T/T,Western Union， if order more than USD50,000 L/C is accepted |
Similar Grades of 304 Stainless Steel
| Grade | UNS | W.Nr |
| 304 | S30400 | 1.4301 |
Chemical Composition of 304 Stainless Steel
| Alloy | % | Ni | Cr | C | Mn | Si | S | N | P |
| 304 | Min. | 8 | 18 | ||||||
| Max. | 10.5 | 20 | 0.08 | 2.0 | 1.0 | 0.03 | 0.10 | 0.035 |
Physical properties of 304 stainless steel
| Density | 7.93 g/cm³ |
| Melting point | 1398-1454°C |
Minimum mechanical properties of 304 stainless steel alloy at room temperature
| Tensile strength Rm N/mm² | Yield strength RP0.2 N/mm² | Elongation rate A5% | Brinell hardness HB |
| 520 | 205 | 40 | ≤187 |
Similar Grades of 316 Stainless Steel
| Grade | UNS | W.Nr |
| 316 | S31600 | 1.4401 |
Chemical composition of 316 stainless steel round rod
| Alloy | % | Ni | Cr | C | Mn | Si | S | N | P |
| 316 | Min. | 10.0 | 16.0 | 2.0 | |||||
| Max. | 14.0 | 18.0 | 0.08 | 2.0 | 1.0 | 0.03 | 3.0 | 0.045 |
Minimum mechanical properties of 316 stainless steel round bar alloy at room temperature
| Density | 7.98g/cm³ |
| Melting point | 1345-1450°C |
Minimum mechanical properties of 316 stainless steel round bar alloy at room temperature
| Tensile strength Rm N/mm² | Yield strength RP0.2 N/mm² | Elongation rate A5% | Brinell hardness HB |
| 520 | 205 | 40 | ≤187 |
Our Stainless Steel SS304/SS316 Hex Head Connector Bolt is a high-performance fastening solution engineered for demanding industrial scenarios, produced by HT&FST – a professional stainless steel fasteners factory based in China. This bolt adheres to global standards like DIN933 and DIN912 for standard models, while also supporting custom designs (e.g., bolts with holes, adapter bolts) to meet unique project requirements.
The flagship model, M6X60+8, features precise dimensions: thread diameter M6, stud length 60mm, thread length 8mm, and hexagon opposite side 10mm (note: single-batch measurement data is for reference; actual products prevail). Crafted from two premium stainless steel grades—SS304 (UNS S30400, W.Nr 1.4301) and SS316 (UNS S31600, W.Nr 1.4401)—it balances durability and corrosion resistance. With 10,000 pieces in stock for immediate delivery, and EN10204-3.1B certification, it guarantees compliance with strict industry quality benchmarks.
SS304 Stainless Steel: Boasts a density of 7.93 g/cm³ and a melting point of 1398–1454°C. Its minimum mechanical properties (tensile strength 520 N/mm², yield strength 205 N/mm², elongation rate 40%, Brinell hardness ≤187 HB) make it ideal for dry or mild corrosive environments.
SS316 Stainless Steel: Offers enhanced corrosion resistance with a density of 7.98 g/cm³ and melting point of 1345–1450°C. It shares SS304’s robust mechanical strength but adds molybdenum, making it resistant to chloride-induced pitting—perfect for marine or chemical settings.
Dimensional Accuracy: Strict quality control ensures consistent thread fit (e.g., internal thread M6 for the M6X60+8 model) and hex head alignment, reducing installation errors.
Customization Support: Covers size ranges from M2.5 to M36; OEM services are available via customer drawings or samples for non-standard designs.
Bright & Clean Finish: Enhances aesthetics and prevents surface contamination.
Flexible Packaging: Standard packaging (bulk in boxes → cartons → pallets) can be customized for logistics needs (e.g., moisture-proof bags for marine shipping).
Sample Availability: Free samples allow pre-order testing for compatibility and performance.
Food & Pharmaceutical Machinery: SS304 Hex Head Connector Bolt features a non-porous surface that resists bacterial growth, making it ideal for securing mixers, storage tanks, and processing lines. It meets strict hygiene standards, ensuring compliance with food-grade and pharmaceutical industry requirements.
Marine & Coastal Projects: SS316 variants (with molybdenum) withstand saltwater corrosion.Perfect for fastening deck fittings, offshore pipeline components, and coastal architectural structures—preventing rust in high-humidity, chloride-rich environments.
Chemical Processing Plants: Used to secure reactors, acid transfer pipelines, and storage tanks. SS304 works for mild chemicals (e.g., dilute acids), while SS316 excels in sulfuric acid or salt-rich media, ensuring long-term stability.
Heavy-Duty Industrial Equipment: Its 520 N/mm² tensile strength and precise thread fit (e.g., M6 internal thread for M6X60+8 model) make it reliable for conveyors, pumps, and compressors—resisting vibration and frequent use.
A1: SS304 is cost-effective for dry/indoor use, while SS316’s molybdenum content delivers superior chloride resistance. Choose SS316 for saltwater, coastal, or chemical environments; SS304 for mild conditions.
A2: Yes! Share your drawing or sample, and our engineering team will develop custom bolts (e.g., longer studs, unique thread pitches). Lead time for custom orders is 2–4 weeks.
A3: T/T and Western Union are accepted for all orders. For orders over USD50,000, L/C (Letter of Credit) is available for mutual security.
A4: Request free samples to test thread fit, corrosion resistance, and mechanical strength. We also provide EN10204-3.1B certification for material composition and performance.
SS304 316 Adapter hex shank head bolt
Name | connetor hex head with inner thread bolt |
Standard | as required |
Size Range | M2.5-M36 |
Finish | Bright&Clean |
Marking | No Marking |
Material | SS304,A2,1.4301; SS316,A4,1.4401 |
Grade | Grade A2 & A4 |
Certificates | EN10204-3.1B |
Non-standards | OEM is available, according to drawing or samples |
Samples | Samples available |
Package | Bulk in box and then in cartons, then on pallets,or according to customers' requirement. |
Payment | T/T,Western Union， if order more than USD50,000 L/C is accepted |
Similar Grades of 304 Stainless Steel
| Grade | UNS | W.Nr |
| 304 | S30400 | 1.4301 |
Chemical Composition of 304 Stainless Steel
| Alloy | % | Ni | Cr | C | Mn | Si | S | N | P |
| 304 | Min. | 8 | 18 | ||||||
| Max. | 10.5 | 20 | 0.08 | 2.0 | 1.0 | 0.03 | 0.10 | 0.035 |
Physical properties of 304 stainless steel
| Density | 7.93 g/cm³ |
| Melting point | 1398-1454°C |
Minimum mechanical properties of 304 stainless steel alloy at room temperature
| Tensile strength Rm N/mm² | Yield strength RP0.2 N/mm² | Elongation rate A5% | Brinell hardness HB |
| 520 | 205 | 40 | ≤187 |
Similar Grades of 316 Stainless Steel
| Grade | UNS | W.Nr |
| 316 | S31600 | 1.4401 |
Chemical composition of 316 stainless steel round rod
| Alloy | % | Ni | Cr | C | Mn | Si | S | N | P |
| 316 | Min. | 10.0 | 16.0 | 2.0 | |||||
| Max. | 14.0 | 18.0 | 0.08 | 2.0 | 1.0 | 0.03 | 3.0 | 0.045 |
Minimum mechanical properties of 316 stainless steel round bar alloy at room temperature
| Density | 7.98g/cm³ |
| Melting point | 1345-1450°C |
Minimum mechanical properties of 316 stainless steel round bar alloy at room temperature
| Tensile strength Rm N/mm² | Yield strength RP0.2 N/mm² | Elongation rate A5% | Brinell hardness HB |
| 520 | 205 | 40 | ≤187 |
