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IFI Report
IFI Online Technical Information – It’s Here!
by:Joe GreensladeDirector of Engineering TechnologyIndustrial Fasteners Institute (IFI)6363 Oak Tree BoulevardIndependence, OH 44131 USAE-mail: [email protected]
For several years, fastener folks have asked, “When can I get IFI technical in-formation online?” As of May 1, 2008, this technical information is available!The IFI Technology Connection™ is tru-ly a breakthrough in how fastener techni-cal data can be accessed. This is a huge time saver when looking for fastener data. Figure 1 compares the old way to the new way of finding needed information:For example: Look up all data related to a typical fastener—1/2-13 x 3 Hex Head Cap Screw, SAE J429, Grade 5, Zinc Plated, ASTM F1941.A tremendous array of technical informa-tion is available. The modules contained in the IFI Technology Connection are:
• Fastener Technical Data for inch and metric standards: - All dimensions including threads. - All mechanical properties applicable to the selected standard. - Additional mechanical data for single shear strength. - Reference tightening torque value based on the K factor of the selected finish and 75% of the yield strength based on the formula T = KDP (complete report can be printed with a single click).
• Complete chemistry lookup for all fastener materials. • Complete lookup for test requirements for all
fastener grades.• Inch-Metric Converter.• Hardness-Tensile cross reference.• Fraction to Decimal inch and millimeter converter.• International fastener material cross reference.• Library of dozens of IFI TechGuides.• Question and Answer module addressing frequently
asked questions about fasteners regarding the failure analysis, inspection, acceptance and installation.
• Online assistance from the IFI technical staff headed by Joe Greenslade, who will answer all questions within 24 hours.
An extensive list of standards data is immediately avail-able. Figure 2 (found on the second page of this article) presents the standards that are currently available within the database.
All Standards Are Promptly UpdatedIt is important to know that all standards in this system are updated within 72 hours of the issuing of a revision. This is the best way available to stay current for quality audits. More DIN and JIS as well as other standards requested by users will be added in the future.
The Service Has Been Available to Non-IFI Members Since May 1, 2008The online IFI service has been requested by the us-ers of the IFI Standards Book for several years. As of May 1, 2008, the IFI has made subscriptions avail-able for the world’s most comprehensive online fas-tener technology resource. Every fastener user, re-sell-er and manufacturer should subscribe to this service to have ready access to completely up-to-date fastener tech-nical information.For a FREE demonstration, FREE 10 day trial or for more information on the IFI Technology Connection, contact Joe Greenslade, the IFI Director of Engineering Technol-ogy by calling +1 817 995 4685 or by sending an email to [email protected].
xx Fastener Technology International/June 2008
Fig. 1 — Comparison of old and new information search methods.
FTI
June 2008/Fastener Technology International xx
IFI Report ...continued
Founded in 1931, the Industrial Fasteners Institute (IFI), Indepen-dence, OH, USA, is an association of the leading North American manufacturers of bolts, nuts, screws, rivets and all types of special formed parts. Associate members include suppliers of equipment, materials and services commonly used in fastener manufacture. Whether you are a fastener maker, supplier or end-user, IFI has something of value to offer. www.indfast.org
Joe Greenslade has been active in the fastener industry since 1970. He held positions with major fastener producing firms be-fore becoming IFI Director of Engineering Technology. [email protected] info on becoming a Member or Associate Member of the IFI, contact Rob Harris, Managing Director, at +1 216 241 1482 or [email protected].
Fig. 2 — Standards currently available in the IFI Technology
Connection™ database.
Field Fastener Supply is the 1st IFI Technology Connection™ SubscriberThe IFI is pleased to announce that Field Fastener Supply Company, based in Machesney, IL, USA, and lead by Bill Derry, Presi-dent, continues being a fastener industry leader in innovation, technology and customer service by becoming the first subscriber to the new IFI Technology Connection™ program. Field Fastener Supply can now quickly supply customers with inch and metric standard fastener drawings plus dimensional data, thread data, grade, hardness, tensile strength, proof load, yield strength, shear strength and recommended tightening torque in a single document. The program also enables Field Fastener Supply to assist its customers through access to the IFI’s technical resources including an extensive library of technical guides and articles on a wide range of fastener related subjects. For additional assistance, Field Fastener is authorized to consult the IFI technical staff on any information not covered in the IFI web site: www.indfast.org. For more on Field Fastener Supply, visit www.fieldfastener.com.
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FASTENER SPECIFICATIONS
HEX CAP SCREW
GRADE MARK
THREAD DATA
Size
1/2
Threads per in.
13
Series Designation
UNC
Thread Class or Type
2A Plated
Major Diameter
0.5000 - 0.4876
Pitch and Functional Diameter
0.4500 - 0.4435
Tensile Stress Area
0.1419
Standard
ASME B1.1 - 2003 (R2008)
Length
2-1/2
Length Tolerance
-0.06
Page 1 of 2Hex Cap Screw Specifications | Industrial Fasteners Institute
3/21/2011http://www.indfast.org/myifi/technology_connection/specifications.asp
HEX CAP SCREW
1 These torque values are based on K factors determined using DIN 946, tightening tension of 75% of the yield strength, and the calculation formula T=KDP. These values are advisory only. The torque for assembling critical joints should be determined and/or verified through actual experimentation by the user. The IFI is not responsible for any losses or claims resulting from the use of these
values.
DIMENSIONAL DATA
Type
Hex Cap Screw
Standard
ASME B18.2.1-2010
Nominal Diameter
0.5
E - Body Diameter
0.5000 - 0.4930
F - Width Across Flats
0.750 - 0.736
G - Width Across Corners
0.866 - 0.840
R - Fillet Radius
0.025 - 0.015
H - Head Height
0.323 - 0.302
J - Wrenching Height
0.215
Transition Thread Length - Max.
0.385
Point Type
Chamfered
Runout of Bearing Surface FIM
0.014 Max
LG max./LB min.
1.38/0.99
PHYSICAL REQUIREMENTS
Nominal
0.5
Standard
SAE J429-1999, Grade 5
Typical Materials
medium carbon steel, 1028 through
1055
Hardness
HRC 34 - 25
Proof Load, lb
12,100
Tensile Strength Min, lb
17,000
Yield PSI, 2% Offset
92,000
Tensile Strength Min. PSI
120,000
Shear through Body (ref.)
11,775
Shear through threads (ref.)
8,500
Straightness Factor
0.015
Tightening Torque 1
90 ft. lb. 1,077 in. lb.
121.7 Nm
FINISH DATA
Finish
Zinc & Clear (cr3) (RoHS Compliant)
K factor (ref. DIN 946)
0.22
Standard
ASTM F1941-2007, Fe/Zn 3AT
Page 2 of 2Hex Cap Screw Specifications | Industrial Fasteners Institute
3/21/2011http://www.indfast.org/myifi/technology_connection/specifications.asp
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Over 100 bulletins covering the frequently asked questions are available.
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Responses within 24 hours fromJoe GreensladeDirector of Engineering Technology
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Subscription TypesSubscription Types USER ONLY: $1000/yearUSER ONLY: $1000/year
available to all direct employeesavailable to all direct employees One user name and passwordOne user name and password one entry at a timeone entry at a time
USER USER –– CUSTOMER: $4000/yearCUSTOMER: $4000/year available to all employees and customersavailable to all employees and customers Unlimited accessUnlimited access Subscriber MUST have secure area of Subscriber MUST have secure area of
website accessed by customers with website accessed by customers with user name and password.user name and password.
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