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: jgreenslade@indfast.orgwww.indfast.org

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 jgreenslade@indfast.org.

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. jgreenslade@indfast.orgFor info on becoming a Member or Associate Member of the IFI, contact Rob Harris, Managing Director, at +1 216 241 1482 or rharris@indfast.org.

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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