TECHNICAL REFERENCE DESK
Standards & Materials
Find the references you need for a clear fastener enquiry. Keep the standard, material grade and property class separate when preparing your specification.
01 / STANDARD REFERENCE
Start with the standard
Use the exact standard number and edition from your drawing or purchasing specification.
DIN GUIDE
DIN 933
Prepare the required edition, nominal diameter, thread pitch, length and material details. Confirm the applicable product specification before quotation.
ISO GUIDE
ISO 4017
Check the required edition and product grade. Compare the relevant details before treating a DIN and ISO reference as interchangeable.
A standard reference alone does not confirm the material grade, property class or available dimensions.
02 / MATERIAL REQUIREMENTS
Make the material requirement clear
Use the material guides to prepare your request, together with the environment, finish and documentation requirements.
MATERIAL GUIDE
304 Stainless Steel
Record your requested material grade, property class and finish. Describe the application environment and any supporting documents you need.
MATERIAL GUIDE
316 Stainless Steel
State the specified material and operating environment. Include project requirements and the material documentation needed for review.
BEFORE YOU REQUEST A QUOTATION
Bring the details together
01 / REFERENCE
Standard & drawing
State the standard number and edition, or attach the controlling drawing and its revision.
02 / DIMENSIONS
Size & thread
Include diameter, length and thread pitch. Flag any dimensions that still need confirmation.
03 / REQUIREMENTS
Material & quantity
List material grade, property class, finish, quantity and required documentation for each item.
Reference guides are awaiting technical review and are for enquiry preparation. They do not replace published standards or establish product suitability.
YOUR NEXT STEP
Have a standard, drawing or material requirement?
Send it with your enquiry. We will review the product reference and specification before quoting.
biz@tongmingfasteners.com