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Questions and Answers

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How we can be our re seller?

  You register in FAS form and send us e-mail which stating that you are a reseller. Then we will confirm you back with ID code.

What is the difference between a bolt and a screw?

            The difference between a bolt and a screw was that the screw was threaded to the head whereas the bolt had a plain shank. However I would say that now this could cause you a problem if you made this assumption when specifying a fastener. The definition used by the Industrial Fastener Institute (IFI) is that screws are used with tapped holes and bolts are used with nuts. 

            Obviously a standard 'bolt' can be used in a tapped hole or with a nut. The IFI maintain that since this type of fastener is normally used with a nut then it is a bolt. Certain short length bolts are threaded to the head - they are still bolts if the main usage is with nuts. Screws are fastener products such as wood screws, lag screws and the various types of tapping screws. The IFI terminology and definition has been adopted by ASME and ANSI.

 

Returning defected part?
          Returns will only be accepted with a return authorization. Please contact Customer Services.Product considered for return must be a current FAS offering and in a saleable condition. Merchandise received in nonsaleable condition will be returned at the customer’s expense.

How do metric strength grades correspond to the inch strength grades?
        Some details on conversion guidance between metric and inch based strength grades is given in section 3.4 of the standard SAE J1199 (Mechanical and Material Requirements for Metric Externally Threaded Steel Fasteners).

Metric fastener strength is denoted by a property class which is equivalent to a strength grade. Briefly:

Class 4.6 is approximately equivalent to SAE J429 Grade 1 and ASTM A307 Grade A

Class 5.8 is approximately equivalent to SAE J429 Grade 2

Class 8.8 is approximately equivalent to SAE J429 Grade 5 and ASTM A449

Class 9.8 is approximately 9% stronger than equivalent to SAE J429 Grade 5 and ASTM A449

Class 10.9 is approximately equivalent to SAE J429 Grade 8 and ASTM A354 Grade BD

For information there is no direct inch equivalent to the metric 12.9 property class.

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       Please ask one of our friendly sales staff members for the product

you need. We are more than happy to quote products that we do not

currently carry in stock.