SUMMER 2024

44 THE DISTRIBUTOR’S

44 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 TORSIONAL STRENGTH TEST IS CRITICAL IN MANY SCREW SPECIFICATIONS Mechanical fasteners (screws, bolts, nuts, rivet, etc.) must be both dimensionally and physically compliant to their applicable specifications to perform properly for end-users. Unfortunately, many fastener suppliers only evaluate the dimensional size of the parts they supply and ignore the required physical tests that evaluate the strength and fastening performance of the parts. The torsional strength test is one of the most widely specified physical tests in screw specifications. The torsional strength test determines if a screw has adequate strength to perform its intended function when put into final use. In most screw specifications in which the torsional strength test is required the parts are not required to be tested for tensile strength. The torsional strength of a screw determines its ability to resist being twisted into two pieces where as the tensile test determines a screw or bolt’s ability to resist being pulled from end-to-end into two pieces. The charts in this article list the torsional strength values specified in the following screw standards and specifications: ¤ ASME B18.6.3 ¤ SAE J78 ¤ SAE J81 ¤ SAE J933 ¤ SAE J1237 ¤ ISO 2702 ¤ ISO 3506-1 ¤ ISO 898-7 ¤ JIS B 1125 ¤ DIN 7504 TECHNICAL ARTICLE CONTINUED ON PAGE 120

THE DISTRIBUTOR’S LINK 45 AFC Industries has acquired Philadelphia, PA based Globe International Corporation. Founded in 1950, the company is a leading supplier of fasteners, door hardware, and galvanized aircraft cable that specializes in value-added kitting and other services. Globe co-owner Steven Weissman said, “Our company has a long history of success based on taking excellent care of our customers and our people. It was important to us to find a partner that would continue to build on that foundation. We are excited to be part of the AFC team.” Co-owner Michael Weissman, added, “AFC offered a unique combination of the resources of a larger business with a customerfocused culture built around the team.” AFC CEO Kevin Godin said, “We knew the Globe team because we competed with them through the years in a couple of our key markets. We have a lot of respect for them and how they do things and bringing them onboard will significantly strengthen our competitive position in those markets.” AFC Industries is a dynamic organization dedicated to providing supply chain management solutions for fasteners, tooling, and assembly components. For more information about AFC Industries visit them online at www.afcind.com.