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SUMMER 2019

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  • Carbon
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  • Distributors
  • Industrial
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  • Stainless
  • Products
  • Screws
  • Fasteners
  • Fastener
Distributor's Link Magazine Summer 2019 / Vol 42 No3

54 THE DISTRIBUTOR’S

54 THE DISTRIBUTOR’S LINK Larry Borowski President GREENSLADE & COMPANY INC. 2234 Wenneca Avenue, Fort Worth, TX 76102 TEL 817-870-8888 FAX 817-870-9199 EMAIL sales1@greensladeandcompany.com WEB www.greensladeandcompany.com WHICH SELF DRILLING SCREW SPECIFICATION SHOULD BE FOLLOWED? Most purchasers of self drilling screws do not indicate a particular specification when ordering. Therefore, manufacturers of self drilling screws must have a set of requirements they will routinely use when they are not given specific instructions by the buyer. There are three main standards that cover self drilling screw requirements. These standards are: SAE J78, JIS B1125, and DIN 7504. The requirements are similar, but not exactly the same. The following charts compare their major requirements: STRENGTH AND HARDNESS DRILLING PERFORMANCE *Note: Test material should be cold rolled steel with a hardness of Rockwell B65-80. TECHNICAL ARTICLE CONTINUED ON PAGE 146

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