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ODOT ITB 180-17 Group 4 Item 33

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ODOT ITB 180-17Group 4 Item 34

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ODOT ITB 180-17 Group 4Item 35

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ODOT ITB 180-17 Group 4 Item 36

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STRUCTURAL BOLTSTECHNICAL DATA SHEET

NUCOR FASTENER

Nucor Fastener is a leadingmanufacturer of Structural Boltsin diameters ranging from 1/2”to 1-1/4” and metric equivalents.We use only domestically melted and rolled material and producethe bolts in St. Joe, Indiana,U.S.A. Nucor Structural Bolts areformed on precision high speedcold formers, utilizing in-processquality systems to ensure youreceive the highest qualitystructural bolts available. Chemical and physical certifications are provided with every shipment. Nucor Fastener is TS16949 and ISO9001 Registered. Testing is performed in our well equipped, A2LAaccredited laboratory. Traceability is strictly enforced enabling us to track the lot number on thecontainer through processing and testing all the way back to the original heat of steel. Nucor Structural Bolts contain over 99% recycled content, helping you qualify for “Green Building” or LEED® program projects. Additional information on Heavy Hex Nuts, Hot Dip Galvanizing, Mechanical Galvanizing, and our Tru-Tension® products can be found in separate Technical Data Sheets. The following is asummary of the Structural Bolts that we offer:

A325 Structural Bolts

TDS-010A 12-04-08

A325 A325-3 A490 A490-3 A325MA325T

STRUCTURAL BOLTS

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ASTM A325 Bolts are typically supplied as plain or galvanized (Mechanical or Hot Dipped). We offer A325 Bolts in Type I and Type III (weathering steel) materials and also in the A325T (thread-to-head) configuration for lengths up to four times the diameter. All Nucor Fastener A325 bolts are quench & temper heat-treated to exceed the minimum tensile strength required. Type III Bolts are made from medium carbon alloy steel with copper, nickel, and chromium additions for weathering purposes. Please see our Technical Data Sheet on Type III Structural Fasteners if you would like further information. Dimensions are as specified for Heavy Hex Structural Bolts in ASME(ANSI) B18.2.6 and threads are UNC (Unified Coarse) per ASME(ANSI) B1.1.

A490 Structural BoltsASTM A490 Bolts are supplied in a plain (black) finish for Type I or Type III (weathering steel) materials and are also now permitted to be supplied for Type I with a Protective Coating per ASTM F1136, Grade 3. These bolts are heat-treated to a tensile strength between 150 and 173 ksi. Medium carbon alloy steel is used to manufacture these bolts. Dimensions are as specified for Heavy Hex Structural Bolts per ASME (ANSI) B18.2.6 and threads are UNC (Unified Coarse) per ASME (ANSI) B1.1.

A325M & A490M Metric Structural BoltsASTM A325M Bolts can be ordered in a plain or galvanized (Mechanical or Hot Dip) finish. ASTM A490M Bolts can be ordered in a plain finish. The ASTM A325M Bolt has equivalent properties to an ASTM F568 Property Class 8.8 Bolt and the ASTM A490M Bolt has equivalent properties to an ASTM F568 Property Class 10.9 Bolt. These properties are also essentially identical to Property Classes 8.8 or 10.9 in ISO 898/1. Surface discontinuity limits are specified in ASTM F788/F788M. The ASTM A325M and A490M Bolts are produced to the dimensions for Heavy Hex Structural Bolts as specified in ANSI B18.2.3.7M. The threads are rolled, as specified in ANSI B1.13M, to a metric coarse thread.

ApplicationsStructural Bolts are designed to be used with nuts for the connection of structural members. The head of a Heavy Hex Structural Bolt is specified to be the same size as a Heavy Hex Nut of the same nominal diameter, allowing a single size wrench or socket to be used on either the bolt head or nut. Structural Bolts have a shorter thread length according to the standard, so the threads can be eliminated from the shear planes of the connection. There are three primary joint types in use today for Structural Bolts; Slip Critical Joints; Pre-Tensioned Joints; and Snug Tightened Joints. The AISC (American Institute of Steel Construction) references the RCSC (Research Council on Structural Connections) “Specification of Structural Joints Using ASTM A325 or A490 Bolts”, to describe correct installation and tightening methods for joints using Structural Bolts. In many cases (e.g., bearing connections, and bolts not in slip critical connections or subject to tension loads), bolts can be used in the snug tight condition. “Snug tight” is defined as the tightness that exists when all plies of a joint are in firm contact. “Snug tight” can normally be attained with a few impacts of an impact wrench or the full effort of a man using an ordinary spud wrench. If full pretensioning is required, such as in slip critical connections, then a clamp load equal to 70% of the minimum tensile strength is required. Slip critical connections, formerly known as friction type connections, rely on the friction between the steel plies being clamped together and the high clamp load of the Structural Bolt/Nut to prevent any movement (or slip) of the joint. To accomplish this high level of friction, the Structural Bolts must be fully tensioned to the following minimum clamp loads:

The RCSC and AISC allow four methods to fully tension bolts for Slip Critical connections without further approval by the Engineer of Record. They include; “Turn-of-Nut” Pretensioning (where after snug tight, the nut is turned through a certain number of degrees to elongate the bolt); “Twist-Off” Type Tension-Control Bolt Pretensioning (such as our Tru-Tension® line of products); Direct-Tension–Indicator Pretensioning (DTI Washers); and Calibrated Wrench Pretensioning (Torque Wrench). Nucor Fastener recommends the “Turn-of-Nut”, “Twist-Off” Type and “DTI Washer” methods with the “Calibrated Torque Wrench” method to be considered as the least favorable of the four tightening options allowed. The calibrated torque wrench method has been recognized (since 1954) to have the potential for tremendous variation (+/-40%), when using Torque as the installation method. “Standard” torque/tension relationships from tables or formulas are no longer recognized as an appropriate means to control pretension. Calibrated wrench tightening may be used provided that the installation procedures follow RCSC guidelines for daily calibrations of each bolt diameter, length, grade, surface condition, nut, washer and lot combination used in a load indicating tension calibration device, such as a Skidmore-Wilhelm, prior to installation in the joint.

Nucor Black Kegs are really “Green”! With an Average Recycled Content of 99%, Nucor Fastener products qualify for “Green Building” applications or LEED® rated projects. Just as you would expect from Nucor, the largest recycler in North America. It’s our Nature! Nucor Fastener has the equipment, quality, systems, expertise, sources, people & distributor network to meet your Structural Fastener needs!

TODAY, THAT LITTLE “n” MEANS BIG THINGS!

NOMINAL BOLT SIZE (INCHES)

MINIMUM TENSION IN KIPS 1 KIP = 1,000 POUNDS

A325 BOLTS A490 BOLTS

1/2 12 15

5/8 19 24

3/4 28 35

7/8 39 49

1 51 64

1-1/8 56 80

1-1/4 71 102

This Technical Data Sheet is subject to change without prior notification.

PO Box 6100 | St. Joe, Indiana 46785 | ph: 206 337 1600 or 800 955 6826 | fax: 260 337 1726 | www.nucor-fastener.com

HEAVY HEX NUTSTECHNICAL DATA SHEET

NUCOR FASTENER

Heavy Hex Structural Nuts are manufactured to ASTM A563, ASTM A563M and ASTM A194 specifications and are designed to be stronger than the bolts with which they are assembled. Therefore, a higher strength nut typically may be substituted in the application and should always possess the same finish as the bolt. Never compromise your assembly with an inferior nut.

Buy with Confidence … Specify Nucor!

The following table shows the mechanical properties for each of these products:

Grade C and C3 NutsThe Grade C Heavy Hex Structural Nut is recommended for plain (non-galvanized) ASTM A325 High Strength Structural Bolts. A Grade C Nut is not sufficient for galvanized A325 Bolts since the overtapping of the nut threads required to accommodate the thickness of the zinc coating also reduces the strength of the nut. Grade C Nuts are made out of carbon steel and generally achieve their mechanical properties without heat treatment. The Grade C3 Nuts are made with weathering steel (alloy steel with additions of copper, nickel and chromium) to match up with ASTM A325 Type 3 Bolts.

Grade DH and DH3 NutsThe Grade DH Heavy Hex Structural Nut is recommended for ASTM A490 Structural Bolts (150,000 psi minimum tensile strength structural bolts and for galvanized ASTM A325 Bolts). Galvanized DH Nuts are lubricated to minimize galling as a requirement of ASTM/AASHTO specifications. A colored dye is included in the lubricant as a requirement to enable visual confirmation of the presence of a lubricant. The green color of Nucor Fastener’s Hot Dip Galvanized nuts distinguishes them from our blue colored Mechanical Galvanized nuts to help prevent mixing. There shall be no mixed coating types on structural bolt/nut combinations per the specifications. Grade DH Nuts are made from medium carbon steel and must be quenched and temper heat treated. Grade DH3 Nuts are made from weathering steel (alloy steel with additions of copper, nickel and chromium), are also heat treated and are designed for use with ASTM A325 Type 3, F1852 Type 3, A490 Type 3 and F2280 Type 3 products.

TDS-001A 2-15-08

HEAVY HEX NUT TYPE

ROCKWELL HARDNESS

PROOF LOAD STRESS

NON-GALVANIZED GALVANIZED

C and C3 B78 – C38 144,000 psi Not Offered

DH and DH3 C24 – C38 175,000 psi 150,000 psi

2H C24 – C35 150,000 psi Not Offered

Metric Class 10S C26 – C38 1,245 MPa 1,245 MPa

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PO Box 6100 | St. Joe, Indiana 46785 | ph: (800) 955-6826 or (260) 337-1726 | fax: (260) 337-1726 | www.nucor-fastener.com

2H NutsThe ASTM A194 Grade 2H Heavy Hex Nut is designed to be used with bolts in high-pressure and high-temperature service in a plain finish. The ASTM A194 specification is under the jurisdiction of ASTM Committee A-1 (Subcommittee on Valves, Fittings, Bolting, and Flanges for High and Sub-atmospheric Temperatures), as opposed to ASTM A563, which is under the jurisdiction of the ASTM Committee F-16 (Fasteners). The ASTM A194 specification was not meant for normal structural bolting; however, the 2H Nut Heavy Hex Nut is considered a suitable substitute for a Grade DH Nut. If galvanized, an asterisk is required to be present after the grade symbol to signify that the nut has been tapped oversize, so the nut will not be mistakenly placed in a high-pressure, high-temperature application. Nucor recommends the use of Grade DH Nuts any time a galvanized finish is specified.

Metric Class 10S NutsThe ASTM A563M Class 10S Heavy Hex Nut is recommended for zinc-coated ASTM A325M high strength structural bolts and ASTM A490M bolts. While the Class 8S Nut is recommended for plain A325M Bolts, the Class 10S Nut can be substituted with the approval of the customer and can also be used with A490M bolts. Class 10S Nut mechanical properties are similar to an ASTM A563 Grade DH Nut, are made from medium carbon steel and are quenched and temper heat treated.

QualityNucor Heavy Hex Nuts are 100% Made in the U.S.A from steel melted and rolled in the U.S.A. Nucor Nuts are formed on precision high speed nutformers, utilizing in-process quality systems and have full traceability from raw material to each container we ship. Chemical and physical certifications are provided with every shipment. Nucor Fastener is TS16949 & ISO9001 Registered and our laboratory is A2LA Accredited. Nucor Black Kegs are really “Green”! With an Average Recycled Content of 99%, Nucor Fastener products qualify for “Green Building” applications or LEED® rated projects. Just as you would expect from Nucor, the largest recycler in North America. It’s our Nature!

Nucor Fastener has the equipment, quality, systems, expertise, sources & people to meet your Heavy Hex Structural Nut needs in sizes ranging from 1/2” to 1 1/4”and from M16 to M24.

This Technical Data Sheet is subject to change without prior notification.

NUT IDENTIFICATION AND GRADE MARKINGS

ASTM A563 Grade C

ASTM A563Grade DH

ASTM A194Grade 2H

ASTM A563Grade C3

ASTM A563Grade DH3

TODAY, THAT LITTLE “n” MEANS BIG THINGS!

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