Grade 8.8 Stainless/Carbon Steel DIN931 DIN933 Hex Head Nut and Bolt
For industrial sourcing
Prepare a clearer RFQ
Include the details below so RELIA can understand the part and discuss the next step with you.
- Drawing, sample, or reference standard
- Material grade and preferred process
- Dimensions, tolerances, and surface finish
- Application, target quantity, and destination
Production timing, packing, and shipping terms are confirmed for each project after specifications and trade terms are agreed.
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GradeCLASS 4, 4.8/ 8.8/ 10.9/ 12.9 EctfinishPlain
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materialStainless SteelNumber of nuts2
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included partsNutsnuts per bolt2
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model number001Thread TypeUnc
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Head TypeHexMaterialSteel
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FinishCustomized RequestProduct nameASTM A325/A490heavy Hex Structural Bolt
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Length10-200mmPayment TermT/T
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SampleFreely SuppliedTypeHexagon Bolt Customized
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Surface treatmentColorSizeCustomized Size
This grade 8.8 DIN931/DIN933 hex-head nut-and-bolt enquiry needs an approved fastener drawing and selected material documentation. The sole variant carries Hex Flange Bolts, 6 mm and M1.6 labels. Confirm the actual supplied dimensions and thread before ordering.
Resolve the thread and under-head length
M1.6 and the separate UNC reference require confirmation of the actual thread system. Specify diameter, pitch or threads per inch, tolerance, hand and matching nut designation. Do not convert metric and UNC labels into one assumed interface.
The 6 mm option and separate length range need a selected under-head measurement and agreed convention. Confirm grip, threaded length, end form and installation clearance on the drawing. A broad length range does not establish additional available variants or the supplied length.
Head configuration, material and property class
Confirm the selected head and bearing-face dimensions rather than assigning a flange or heavy hex configuration from photographs. Grade 8.8, the other class references and ASTM A325/A490 terminology do not establish equivalent mechanical requirements or simultaneous conformity.
Obtain the exact material specification, property-class requirements and matching inspection certificate. Stainless, carbon steel and generic steel references do not identify one actual alloy. Blue and dark finishes cannot establish composition. Plain, colour and customization wording need a defined surface treatment and inspection criteria where a coating is required.
Matched nuts and joint acceptance
Confirm whether two compatible nuts are supplied per bolt, their grade and the complete ordered set. The count and gallery do not establish included washers or a qualified structural assembly. Determine joint loading, grip, exposure, temperature and installation requirements before assigning torque or capacity. Provide the actual head/thread/length drawing, material and property-class documents, matched nut requirements and finish specification. Request dimensional and mechanical acceptance records for the selected standard and joint.
Technical information for every product inquiry
Prepare the requirement before final product confirmation.
The product page is a starting point. Drawings, samples, interfaces, materials, quantities and acceptance requirements are reviewed before stock matching or custom production is confirmed.
Discuss this product in your project context.
Share the available drawing, sample, reference, target quantity and application information. Unknown items can remain open for review.
