Stainless Steel Hex Bolts
DIN 931 / DIN 933 Hex Head Bolts
VALTOR supplies stainless steel hex bolts for industrial fastening applications, including DIN 931 partially threaded and DIN 933 fully threaded designs. The company supports standard supply and customized production requirements with stainless steel and carbon steel material options.
Product Overview
Stainless steel hex bolts are externally threaded fasteners with a six-sided head designed for tightening and removal with standard tools. The hexagonal head provides a stable wrenching surface and reliable torque transfer, which is why hex bolts are widely used for bolted connections where secure clamping, serviceability and long-term durability are important — particularly in structural assemblies, machinery and engineered equipment.
VALTOR supplies Hex Bolts in DIN 931 partially threaded and DIN 933 fully threaded configurations. DIN 931 features an unthreaded shank section that is commonly selected for structural and shear-related connection requirements, while DIN 933 is fully threaded for applications where flexible thread engagement is preferred. Common materials include 304 and 316 stainless steel: 304 for general-purpose corrosion resistance in common industrial applications, and 316 for higher resistance to chloride and moisture exposure in marine, coastal and demanding outdoor environments. Selected grades such as 321, 310S and Duplex 2205 — a duplex grade combining improved mechanical strength with strong corrosion resistance — can be supplied according to stock and project requirements. Carbon steel options are also available in common strength classes including 8.8, 10.9 and 12.9.
Customers can specify standard or customized dimensions, thread configurations, material grades and packaging requirements according to their application. VALTOR supports Hex Bolt supply for steel structure fabrication, industrial machinery assembly, heavy equipment manufacturing, marine and coastal equipment, and OEM machinery projects. Drawings or samples can be provided for customized production, with inspection documentation and private-label packaging available for qualified projects.
Technical Specifications
Reference values for standard configurations; exact parameters depend on the requested specification.
Surface Finishes
Available finishes vary by material grade and application requirements.
Available finishes depend on material grade and application requirements.
Custom Manufacturing & OEM Support
VALTOR can support customers with customized hex bolt requirements when standard dimensions do not meet project needs.
Quality & Documentation
Documentation provided to support customer verification and traceability.
Availability & Delivery
Indicative order parameters; actual values depend on project scope.
Packaging & Private Label
Standard and customized packaging options for B2B supply.
Custom branded packaging is available for qualified customers. Customer brand logos and packaging can be produced after proper brand authorization.
Applications
Where stainless steel hex bolts are actually used — from steel structure bolts and machinery fastening to marine-grade and OEM custom bolt projects.
Hex bolts are widely used for steel structure connections, providing reliable mechanical fastening for structural frames, fabricated steel components and engineering projects.
Hex bolts are commonly used in machinery assembly for equipment frames, mechanical components and industrial systems requiring secure and serviceable connections.
Hex bolts provide dependable fastening solutions for heavy equipment manufacturing, transportation machinery and engineered assemblies requiring strong mechanical connections.
Stainless steel hex bolts are suitable for outdoor and marine applications where corrosion resistance, durability and long-term fastening performance are required.
VALTOR supports OEM projects requiring customized dimensions, materials, packaging solutions and application-specific fastener requirements.
Frequently Asked Questions
What stainless steel grades are available for Hex Bolts?
304 and 316 are commonly available. Selected grades such as 321, 310S and Duplex 2205 can be supplied according to stock and project requirements.
Are DIN 931 and DIN 933 Hex Bolts available?
Yes. VALTOR commonly supplies DIN 931 partially threaded and DIN 933 fully threaded Hex Bolts.
Can Hex Bolts be customized?
Yes. Custom dimensions, materials, thread configurations and packaging can be supplied according to project requirements.
What sizes are available?
Common metric sizes are available from M3 to M30 with common lengths from approximately 6 to 300 mm. Custom dimensions are available upon request.
Can you supply UNC and UNF threads?
Yes. Metric, UNC and UNF thread configurations can be supplied according to product requirements.
What strength classes are available?
Typical stainless steel strength classes include A2-70 and A4-70. Carbon steel options include 8.8, 10.9 and 12.9.
Can you provide inspection and material documentation?
MTC, raw material reports, product inspection documentation and third-party inspection can be provided according to customer requirements.
What is the MOQ and lead time?
MOQ starts from 1,000 pcs. Samples are available. Typical stock lead time is 3–5 working days, while custom production generally takes 15–25 working days.
Related Products
Share your required standard, material, dimensions or drawing with VALTOR for a customized quotation.