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العربية stainless steel 304 hex bolts supplier
XZ Fastener supplies stainless steel 304 hex bolts for buyers who need corrosion resistance, clean appearance, and dependable thread fit in industrial assemblies. Products can be supplied according to DIN 933, DIN 931, ISO 4017, ISO 4014, ANSI / ASME B18.2.1, or customer drawings. Common material descriptions include 304, A2, 18-8, and SUS304, with A2-50, A2-70, or A2-80 strength classes available according to order requirement. Full thread, partial thread, metric, and inch thread options can be reviewed with matching nuts, washers, packaging, and inspection requirements.
304 stainless steel hex bolts are suitable for machinery, food equipment, light marine exposure, architectural hardware, and general corrosion-resistant fastening.
Quick Specs
What Buyers Should Know Before Sourcing Stainless Steel 304 Hex Bolts
Stainless steel 304 hex bolts are often selected for corrosion resistance and appearance, but the buyer should still confirm the dimensional standard, thread pitch, strength class, and matching nut material. 304 stainless is different from high-strength carbon steel; it is normally chosen for corrosion resistance rather than maximum tensile strength.
If the application is exposed to chlorides, seawater, or aggressive chemicals, compare 304 with 316 before ordering. XZ Fastener provides a practical comparison of 304 vs 316 stainless steel bolts for buyers selecting between A2 and A4 materials.
Procurement checks
- Confirm 304, A2, 18-8, or SUS304 material description.
- State the standard, diameter, pitch, length, and thread style.
- Check whether A2-70 or another strength class is required.
- Confirm matching stainless nuts and washers to reduce assembly mismatch.
- Define surface finish, packaging, and inspection documents before quotation.
Common Purchasing Descriptions
Stainless bolt descriptions
- Stainless steel 304 hex bolts, DIN 933, full thread, A2-70
- 304 stainless steel metric hex head bolts, ISO 4017, plain finish
- A2 stainless steel hex bolts with matching nuts and flat washers
- 18-8 stainless steel inch hex bolts, UNC or UNF thread
- SUS304 hex head bolts, passivated, packed in small boxes
Comparison requests buyers may include
- DIN 933 full thread hex bolts in stainless steel 304 or carbon steel
- Grade 8.8 carbon steel hex bolts when higher strength is required
- Metric hex head bolts supplied in A2 stainless steel or carbon steel
- Zinc plated DIN 933 bolts, black oxide DIN 933 bolts, or hot dip galvanized DIN 933 bolts for carbon steel alternatives
- Stainless steel bolts with compatible nuts and washers for corrosion-resistant assemblies
For inch-size 304 orders, buyers can review XZ Fastener’s 304 stainless steel UNC hex bolts as a reference for imperial thread descriptions.
Detailed Specifications Table
| Specification Item | Common Options | Buyer Notes |
|---|---|---|
| Product type | Hex head bolt, full thread bolt, partial thread bolt, hex cap screw | Confirm whether the assembly needs full thread engagement or an unthreaded shank area. |
| Estándares | DIN 933, DIN 931, ISO 4017, ISO 4014, ANSI / ASME B18.2.1, drawing parts | The standard affects head dimensions, thread length, body diameter, and measurement method. |
| Material | Stainless steel 304, A2, 18-8, SUS304 | For stronger chloride resistance, compare with 316 / A4 before confirming the order. |
| Strength class | A2-50, A2-70, A2-80 | A2-70 is a common request, but the required class should be stated on the inquiry. |
| Diameter range | Common metric sizes M3 to M36; inch sizes available upon request | Large sizes, special lengths, and non-standard threads should be checked with drawings. |
| Thread | Metric coarse, metric fine, UNC, UNF, custom thread | Pitch and tolerance should match the nut. Thread inspection can be arranged according to order requirement. |
| Finish | Plain, passivated, polished, waxed, cleaned, custom surface treatment | Passivation and cleaning can improve surface condition after manufacturing and handling. |
| Matching parts | 304 stainless nuts, 304 stainless flat washers, spring washers, custom washers | Review XZ Fastener’s guide to matching stainless steel bolts, nuts, and washers when ordering full assemblies. |
| Inspection | Dimensions, thread gauge, material check, surface condition, packing verification | Required test reports or inspection documents should be confirmed before quotation. |
| Packaging | Bulk cartons, small boxes, bags, pallets, labels, customer-specified packing | Stainless bolts should be packed to reduce surface scratches and mixed-material contamination. |
Material and Grade Explanation
Stainless steel 304 belongs to the austenitic stainless family and is commonly described as A2, 18-8, or SUS304 in international purchasing documents. It offers good corrosion resistance for many indoor, outdoor, machinery, and general equipment applications, while maintaining a clean surface appearance.
For strength, stainless bolts are often specified as A2-50, A2-70, or A2-80. These classes should not be confused with Grade 8.8 carbon steel hex bolts, because stainless steel 304 is selected mainly for corrosion resistance and material compatibility. For higher chloride or marine exposure, review A2 vs A4 stainless steel fasteners before confirming 304.
Material selection reminders
- Use 304 / A2 for general corrosion resistance and clean appearance.
- Consider 316 / A4 for stronger chloride or marine resistance.
- Do not treat stainless A2-70 as the same as carbon steel Grade 8.8.
- Match stainless bolts with compatible stainless nuts and washers.
- Confirm any magnetic, surface cleaning, or passivation requirement before production.
Surface Finish Selection Guide
Plain stainless
Common for general 304 hex bolts where the natural stainless surface is acceptable after production and cleaning.
Passivated
Available upon request to help remove surface contaminants and support corrosion resistance after machining, forming, or handling.
Polished
Used when appearance is important for visible hardware, architectural fastening, or equipment panels.
Waxed or lubricated
Can be considered to improve installation behavior and reduce thread galling risk in stainless assemblies.
Cleaned and packed
Useful when buyers need clean surface condition, separated packing, or reduced risk of carbon steel contamination.
Custom surface treatment
Special cleaning, marking, or surface finish can be reviewed according to drawing and order requirement.
For projects comparing stainless steel with zinc, hot dip galvanized, and other corrosion-resistant finishes, XZ Fastener’s corrosion resistance comparison can help buyers choose a suitable fastening system.
Manufacturing and Quality Control
Stainless steel 304 hex bolts can be produced by material preparation, cold heading or machining depending on size, thread rolling or thread cutting, surface cleaning, passivation where required, sorting, and packing. Special lengths, non-standard thread lengths, or drawing-based parts should be reviewed before production.
Quality control can include dimensional inspection, head size check, thread fit, material confirmation, surface condition review, passivation requirement, and packaging verification. For thread acceptance, go/no-go thread gauge testing can be arranged according to order requirement.
Aplicaciones
- Food equipment, packaging machinery, and clean assembly areas
- General machinery, equipment covers, brackets, and frames
- Architectural hardware and visible fastening points
- Light outdoor environments and general corrosion-resistant installations
- Maintenance, repair, and export fastener kits with matching nuts and washers
Stainless steel 304 hex bolts are suitable when corrosion resistance and appearance are important, but the environment does not require stronger A4 / 316 chloride resistance. For heavy structural strength, buyers may still choose carbon steel alternatives with suitable coating, such as zinc plated DIN 933 bolts or hot dip galvanized DIN 933 bolts.
For product range comparison, buyers can review XZ Fastener’s fastener products and choose matching nuts, washers, anchors, threaded rods, and custom fasteners according to the assembly requirement.
How to Get a Faster Quotation
A complete inquiry helps XZ Fastener check material, standard, thread, strength class, finish, inspection, and packaging before quoting. For stainless steel 304 hex bolts, provide the standard, diameter, pitch, length, thread style, material description, strength class, quantity, and whether matching nuts and washers are required.
Recommended inquiry details
- Standard: DIN 933, DIN 931, ISO 4017, ISO 4014, ANSI / ASME, or drawing
- Material: 304, A2, 18-8, SUS304, or project-specified stainless grade
- Strength class: A2-50, A2-70, A2-80, or custom requirement
- Size: diameter, pitch, length, and thread length if partial thread
- Finish, quantity, packing method, label requirement, and destination information
Useful attachments
- Technical drawing with tolerance and thread details
- Sample photos showing surface finish and head marking
- Assembly list for matching nuts and washers
- Inspection checklist or test report format
- Carton, pallet, barcode, or private label instructions
For direct project review, contact XZ Fastener with your size list and application details.
Preguntas frecuentes
Is stainless steel 304 the same as A2 stainless steel?
In many fastener purchasing documents, 304 stainless steel is commonly referred to as A2 stainless steel or 18-8 stainless steel. Buyers should still confirm the exact material description and any required strength class before production.
Can stainless steel 304 hex bolts be supplied in A2-70?
Yes. A2-70 is a common strength class for stainless steel 304 hex bolts. Buyers should state the required class in the inquiry because stainless fasteners can also be requested as A2-50 or A2-80 depending on the application.
Should I choose 304 or 316 stainless steel hex bolts?
304 is suitable for many general corrosion-resistant applications. If the assembly is exposed to seawater, chlorides, or stronger chemicals, 316 / A4 may be more suitable. The application environment should be shared before quotation.
Can 304 stainless steel hex bolts be supplied with matching nuts and washers?
Yes. XZ Fastener can supply 304 stainless steel hex bolts with matching stainless nuts and washers according to assembly requirement. Send the complete size list, quantity, finish, and packing requirements for review.
Do stainless steel 304 hex bolts need plating?
304 stainless steel is usually ordered plain, cleaned, polished, or passivated rather than zinc plated. If a special surface treatment is required, it should be confirmed with the application and drawing requirement.
What inspection can be arranged before shipment?
Inspection can include dimensions, thread gauge, material confirmation, surface condition, head marking, passivation requirement, and packaging checks. Required inspection documents should be listed in the inquiry.
Send Your Stainless Steel 304 Hex Bolt Inquiry
For a faster quotation, send your size list, finish, quantity, packaging, and inspection requirements. Please also include the standard, material description, strength class, thread type, matching nut or washer details, drawing files, and any test document requirements so XZ Fastener can review the complete order accurately.
Request a quote