ASTM F1554-20

This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: F1554 − 18 F1554 − 20
Standard Specification for
Anchor Bolts, Steel, 36, 55, and 105-ksi Yield Strength
This standard is issued under the fixed designation F1554; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope*
1.1 This specification covers straight, bent, headed, and headless anchor bolts (also known as anchor rods) made of carbon,
medium carbon boron, alloy, or high-strength low-alloy steel. It provides for anchor bolts in three strength grades, two thread
classes, and in the diameters specified in Section 4. The specification also covers all-thread rod for use in anchoring to concrete.
References to anchor bolts in this standard do not necessarily exclude all-thread rod.
1.2 Anchor bolts are intended for anchoring structural supports to concrete foundations. Such structural supports include building
columns, column supports for highway signs, street lighting and traffic signals, steel bearing plates, and similar applications.
1.3 Supplementary requirements are included to provide for Grade 55 weldable steel, permanent manufacturers and grade
identification, and impact properties for Grades 55 and 105.
1.4 Zinc coating requirements are in Section 7.
1.5 Suitable nuts and washers are listed in 6.7. Washers are detailed in 6.8.
1.6 This specification does not cover mechanical expansion anchors, powder-activated nails or studs, or anchor bolts fabricated
from deformed bar.
1.7 The values stated in inch-pound units are to be regarded as standard. No other units of measurement are included in this
standard.
1.8 This international standard was developed in accordance with internationally recognized principles on standardization
established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued
by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
2. Referenced Documents
2.1 ASTM Standards:
A6/A6M Specification for General Requirements for Rolled Structural Steel Bars, Plates, Shapes, and Sheet Piling
This specification is under the jurisdiction of ASTM Committee F16 on Fasteners and is the direct responsibility of Subcommittee F16.02 on Steel Bolts, Nuts, Rivets
and Washers.
Current edition approved Sept. 1, 2018Dec. 15, 2020. Published October 2018January 2021. Originally approved in 1994. Last previous edition approved in 20172018
ɛ1
as F1554 – 17F1554 – 18 . DOI: 10.1520/F1554-18.10.1520/F1554-20.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
F1554 − 20
A194/A194M Specification for Carbon Steel, Alloy Steel, and Stainless Steel Nuts for Bolts for High Pressure or High
Temperature Service, or Both
A370 Test Methods and Definitions for Mechanical Testing of Steel Products
A563 Specification for Carbon and Alloy Steel Nuts
A673/A673M Specification for Sampling Procedure for Impact Testing of Structural Steel
A751 Test Methods and Practices for Chemical Analysis of Steel Products
B695 Specification for Coatings of Zinc Mechanically Deposited on Iron and Steel
F436/F436M Specification for Hardened Steel Washers Inch and Metric Dimensions
F606/F606M Test Methods for Determining the Mechanical Properties of Externally and Internally Threaded Fasteners,
Washers, Direct Tension Indicators, and Rivets
F1789 Terminology for F16 Mechanical Fasteners
F2329/F2329M Specification for Zinc Coating, Hot-Dip, Requirements for Application to Carbon and Alloy Steel Bolts, Screws,
Washers, Nuts, and Special Threaded Fasteners
2.2 American Institute of Steel Construction:
Design Guide 1: Base Plate and Anchor Rod Design
2.3 ASME Standards:
B 1.1 Unified Inch Screw Threads (UN and UNR Thread Form)
B 1.3 Screw Thread Gaging Systems for Acceptability: Inch and Metric Screw Threads (UN, UNR, UNJ, M MJ)
B 18.2.1 Square, Hex, Heavy Hex, and Askew Head Bolts and Hex, Heavy Hex, Hex Flange, Lobed Head, and Lag Screws (Inch
Series)
B 18.2.2 Square and Hex Nuts
B 18.18 Quality Assurance for Fasteners
3. Terminology
3.1 Definitions of Terms Specific to This Standard:
3.1.1 anchor bolt—steel fastener, typically made from bar stock or wire, and partially or fully threaded, one end of which is
intended to be cast in concrete, while the opposite end projects from the concrete, for anchoring other material. The end cast in
concrete may be either straight or provided with an uplift-resisting feature such as a bent hook, forged head, or a tapped or welded
attachment.
3.1.2 producer—manufacturer of the steel bar stock or wire used for anchor bolts.
3.2 All other terms in this standard are used as defined in Terminology F1789.
4. Classification
4.1 Anchor bolts may be furnished in three grades (denoting minimum yield strength) and two classes (denoting thread class) as
follows:
Description
Tensile Strength, Yield Strength, Diameter Range,
Grade
ksi (MPa) min, ksi (MPa) in.
36 58–80 (400–558) 36 (248) ⁄2 –4
55 75–95 (517–655) 55 (380) ⁄2 –4
105 125–150 (862–1034) 105 (724) ⁄2 –3
Class
1A anchor bolts with Class 1A threads
2A anchor bolts with Class 2A threads
5. Ordering Information
5.1 Orders should include:
5.1.1 Quantity.
Available from American Institute of Steel Construction (AISC), 130 E. Randolph St., Suite 2000, Chicago, IL 60601-6219, http://www.aisc.org.
Available from American Society of Mechanical Engineers (ASME), ASME International Headquarters, Three Park Ave., New York, NY 10016-5990, http://
www.asme.org.
F1554 − 20
5.1.2 Product name.
5.1.3 ASTM designation and year of issue.
5.1.4 Grade and class.
5.1.5 Copper content, if copper bearing steel is required.
5.1.6 Size and Dimensions—Nominal diameter and thread pitch, bolt length, thread length, head type (if required) and hook angle
and hook length (if required).
5.1.7 Coatings—If required, the coating process and the length to be coated as measured from the exposed end. See Section 7.
5.1.8 Number of nuts. See 6.7.
5.1.9 Number of washers, and washer dimensions and material, if applicable. See 6.8.
5.1.10 Source inspection requirements, if any. See Section 15.
5.1.11 Color coding, if different than Section 18.
5.1.12 Test reports, if required. See Section 17.
5.1.13 Supplementary requirements, if required.
5.1.14 Special packaging requirements, if required.
NOTE 1—An example of a typical order follows: 5000 pieces; anchor bolts; ASTM F1554-15 Grade 55; Class 2A; 1.0-8 tpi. diameter by 15-in. long, 3.0-in.
thread length, 4.0-in. hook; zinc-coated by hot dipping 5.0 in. from exposed end; each with one zinc-coated nut and washer; test report required;
Supplementary Requirement S1 required.
6. Materials and Manufacture
6.1 Process—Steel for anchor bolts shall be made by the open-hearth, basic-oxygen, or electric-furnace process.
6.2 Threading—Threads shall be rolled, cut, or ground at the option of the manufacturer, unless otherwise specified.
6.3 Heat Treatment:
6.3.1 Grade 105 bolts (or their raw material) shall be heat treated. Heat treatment may be performed prior to or after bending or
threading.
6.3.2 When heat treatment is performed, anchor bolts (or their raw material) shall be quenched in a liquid medium from above
the transformation temperature and then tempered by reheating to a temperature not less than 800°F for Grade 55 and 1100°F for
Grade 105.
6.4 Weldability—Grade 36 anchor bolts are considered weldable. See Note 2. At the manufacturer’s option, a weldable Grade 55
may be supplied when Grade 36 is specified. (Weldable steel for Grade 55 is provided for in Supplementary Requirement S1.) See
17.1.1.
6.5 Bending:
6.5.1 When required, bending may be performed by hot- or cold-bending, at the manufacturer’s option. The bent portion shall be
free from cracks when examined at 10× magnification after bending. Any bending shall not reduce the cross-sectional area below
that required in 10.3.
F1554 − 20
6.5.2 Hot bending temperatures for non-heat-treated anchor bolts shall not exceed 1300°F. Anchor bolts shall be allowed to air
cool after bending.
6.5.3 The maximum hot bending temperature for heat-treated anchor bolts shall be less than 700°F for Grade 55 and less than
1000°F for Grade 105. Anchor bolts shall be allowed to air cool after bending.
6.6 Secondary Processing—If a party other than the manufacturer or producer performs heat treatment, coating, welding,
machining, or another process which affects the anchor bolt properties, that party shall inspect or test the anchor bolts for the
affected properties.
6.7 Nuts:
6.7.1 Recommended nuts from Specification A563 for each grade and diameter of the anchor bolt are as follows:
Specification A563 Nut
Hot-Dip or Mechanical Zinc-coated
Anchor Bolt Grade and Diameter,
Plain in
in.
A
accordance with Section 7
Grade Diameter, in. Grade Style Grade Style
1 1
36 ⁄2 –1 ⁄2 A Hex A Hex
over 1 ⁄2 A Heavy Hex A Heavy Hex
1 1
55 ⁄2 –1 ⁄2 A Hex A Heavy Hex
over 1 ⁄2 –4 A Heavy Hex A Heavy Hex
105 All DH Heavy Hex DH Heavy Hex
A
See Note 3 and Section 7.
6.7.2 A listed nut may be substituted by a nut listed in Specifications A194/A194M or A563 having a proof load stress equal to
or higher than the anchor bolt’s specified minimum tensile strength.
6.7.3 Nuts for use with zinc-coated anchor bolts shall be zinc-coated by the same process as the bolts. See Section 7 and Note
3.
6.8 Washers:
6.8.1 Unless the washer material and dimensions are otherwise specified in the inquiry and the order, washers conforming to the
requirements of Specification F436/F436M, Type 1 shall be furnished. (See Note 4.)
6.8.2 Unless otherwise specified, when zinc-coated anchor bolts are specified, the washers shall be zinc coated in accordance with
7.1.4.
NOTE 2—Many factors potentially affect steel weldability; this specification utilizes limits on carbon content for Grades 36 and 55 to help assure it. See
Specification A6/A6M, Appendix X3 for more information. When anchor bolts are to be welded, welding procedures and techniques are of fundamental
importance. Welding procedures suitable for the bolt’s grade, chemistry, condition (that is, hot-rolled, cold-drawn, or heat-treated), and intended use or
service should be utilized.
NOTE 3—Zinc-coated nuts of the grade and style recommended in 6.7, when overtapped with the diametral allowance for the thread series listed in
Specification A563, will develop the bolt tensile strength required in Table 2 of this specification. However, coated nuts with 8 UN threads in sizes 1- ⁄4
in. and larger, when overtapped, will not develop the tensile strength in Table 2 when the nut and associated bolt dimensions approach the minimum
material limits of ASME B 1.1 and B 18.2.2, respectively.
NOTE 4—Washers used on anchor bolts or installed over base plate holes may require design consideration. (For guidance, refer to AISC Design Guide
1.)
7. Protective Coatings
7.1 Zinc, Hot Dip or Mechanically Deposited:
7.1.1 When zinc-coated anchor bolts are required, the purchaser shall specify the coating process, for example, hot dip,
F1554 − 20
mechanically deposited, or no preference. When no preference is specified, the supplier may furnish bolts coated with either
process. The supplier’s option is limited to one process per item, with no mixed processes in a lot.
7.1.2 When hot-dip zinc coated anchor bolts are specified, the anchor bolts and nuts shall be zinc-coated in accordance with the
requirements of Specification F2329/F2329M.
7.1.3 When mechanically deposited zinc coated anchor bolts are provided, the anchor bolts and nuts shall be zinc-coated in
accordance with the requirements of Specification B695, Class 55.
7.1.4 Unless otherwise specified, when zinc-coated washers are required, the washers shall be hot-dip zinc-coated in accordance
with Specification F2329/F2329M, or mechanically deposited zinc coated in accordance with Specification B695, Class 55. The
coating process for the washers need not be the same as that for the anchor bolts and nuts.
7.2 Other Coatings:
7.2.1 When indicated on the inquiry and purchase order, coatings other than those in 7.1 shall be as agreed upon by the purchaser
and supplier.
8. Chemical Composition
8.1 Anchor bolts shall conform to the chemical compositions listed in Table 1.
8.2 Grade 55 ordered as weldable shall conform to the requirements specified in Supplementary Requirement S1.
8.3 Anchor bolts made from low-carbon martensitic steel shall not be permitted.
8.4 The application of heats of steel to which bismuth, selenium, tellurium, or lead has been added intentionally shall not be
permitted.
9. Mechanical Properties
9.1 Finished anchor bolts (or the bar stock from which they are made, when tested as permitted in 14.2.6) shall conform to the
tensile properties listed in Table 2 for axial tests performed on full-size specimens and drawn coupons or in Table 3 for tests
performed on machined specimens. See 14.2.
TABLE 1 Chemical Composition Requirements
Grades 55
Grade 36
and 105
3 7
Element Diameters up to ⁄4, Over ⁄8 to 4, All
A
incl incl Diameters
Carbon, max, %
Heat 0.25 0.25 .
Product 0.28 0.28 .
Manganese, max %
Heat . 0.90 .
Product . 0.98 .
Phosphorus, max, %
Heat 0.04 0.04 0.04
†
Product 0.05 0.05 0.048
Sulfur, max, %
Heat 0.05 0.05 0.05
Product 0.06 0.06 0.058
Copper, min, % (when
specified)
Heat 0.20 0.20 0.20
Product 0.18 0.18 0.18
A
For each reduction of 0.01 % below the specified Carbon maximum, an increase
of 0.06 % Manganese above the specified maximum is permitted, up to a
maximum of 1.35 % Mn.
F1554 − 20
A
TABLE 2 Axial Tensile Properties for Full-Size Tests of Anchor Bolts and Drawn Coupons
Anchor Bolt Grade
B
Threads/ 36 55 105
Stress Area,
Nominal Diameter, in.
in. in.
Tensile Strength, Yield, min,
Tensile Load, lbf Yield min, lbf Tensile Load, lbf Yield min, lbf
lbf lbf
Unified Coarse Thread Series (UNC)
⁄2 13 UNC 0.1419 8 200–11 400 5 100 10 600–13 500 7 800 17 700–21 300 14 900
⁄8 11 UNC 0.226 13 100–18 100 8 100 17 000–21 500 12 400 28 200–33 900 23 700
⁄4 10 UNC 0.334 19 400–26 700 12 000 25 000–31 700 18 400 41 800–50 100 35 100
⁄8 9 UNC 0.462 26 800–37 000 16 600 34 600–43 900 25 400 57 800–69 300 48 500
1 8 UNC 0.606 35 200–48 500 21 800 45 400–57 600 33 300 75 800–90 900 63 600
1 ⁄8 7 UNC 0.763 44 300–61 000 27 500 57 200–72 500 42 000 95 400–114 400 80 100
1 ⁄4 7 UNC 0.969 56 200–77 500 34 900 72 700–92 100 53 300 121 000–145 000 102 000
1 ⁄2 6 UNC 1.405 81 500–112 400 50 600 105 000–133 000 77 300 176 000–216 000 148 000
1 ⁄4 5 UNC 1.90 110 000–152 000 68 400 142 000–180 000 104 500 238 000–285 000 200 000
2 4 ⁄2 UNC 2.50 145 000–200 000 90 000 188 000–238 000 138 000 312 000–375 000 262 000
1 1
2 ⁄4 4 ⁄2 UNC 3.25 188 000–260 000 117 000 244 000–309 000 179 000 406 000–488 000 341 000
2 ⁄2 4 UNC 4.00 232 000–320 000 144 000 300 000–380 000 220 000 500 000–600 000 420 000
2 ⁄4 4 UNC 4.93 286 000–394 000 177 000 370 000–468 000 271 000 616 000–740 000 518 000
3 4 UNC 5.97 346 000–478 000 215 000 448 000–567 000 328 000 746 000–896 000 627 000
3 ⁄4 4 UNC 7.10 412 000–568 000 256 000 532 000–674 000 390 000 . . . . . .
3 ⁄2 4 UNC 8.33 483 000–666 000 300 000 625 000–791 000 458 000 . . . . . .
3 ⁄4 4 UNC 9.66 560 000–773 000 348 000 724 000–918 000 531 000 . . . . . .
4 4 UNC 11.08 643 000–886 000 399 000 831 000–1 053 000 609 000 . . . . . .
8 Thread Series (8 UN)
1 ⁄8 8 UN 0.790 45 800–63 200 28 400 59 200–75 000 43 400 98 800–118 500 83 000
1 ⁄4 8 UN 1.000 58 000–80 000 36 000 75 000–95 000 55 000 125 000–150 000 105 000
1 ⁄2 8 UN 1.492 86 500–119 400 53 700 112 000–142 000 82 100 186 000–224 000 157 000
1 ⁄4 8 UN 2.08 121 000–166 000 74 900 156 000–198 000 114 000 260 000–312 000 218 000
2 8 UN 2.77 161 000–222 000 99 700 208 000–263 000 152 000 346 000–416 000 291 000
2 ⁄4 8 UN 3.56 206 000–285 000 128 000 267 000–338 000 196 000 445 000–534 000 374 000
2 ⁄2 8 UN 4.44 258 000–355 000 160 000 333 000–422 000 244 000 555 000–666 000 466 000
2 ⁄4 8 UN 5.43 315 000–434 000 195 000 407 000–516 000 299 000 679 000–815 000 570 000
3 8 UN 6.51 378 000–521 000 234 000 488 000–618 000 358 000 814 000–976 000 684 000
3 ⁄4 8 UN 7.69 446 000–615 000 277 000 577 000–731 000 423 000 . . . . . .
3 ⁄2 8 UN 8.96 520 000–717 000 323 000 672 000–851 000 493 000 . . . . . .
3 ⁄4 8 UN 10.34 600 000–827 000 372 000 776 000–982 000 569 000 . . . . . .
4 8 UN 11.81 685 000–945 000 425 000 886 000–1 122 000 650 000 . . . . . .
A
Tensile properties calculated from the tensile requirements given in Table 3. Yield strength measured at 0.2% offset.
B
Stress areas extracted from ASME B 1.1.
TABLE 3 Tensile Properties for Bars and Machined Specimens
Grade
36 55 105
Tensile strength, ksi 58–80 75–95 125–150
Yield strength, min, ksi (0.2 % offset) 36 55 105
A
Elongation in 8 in. , min, % 20 18 12
A
Elongation in 2 in. min, % 23 21 15
Reduction of Area, min, % 40 30 45
A
Elongation in 8 in. applies to bars. Elongation in 2 in. applies to machined
specimens.
10. Anchor Bolt Dimensions
10.1 Nominal Size—The nominal anchor bolt diameter shall be the same as the nominal thread diameter.
10.2 Body Diameter—Finished anchor bolts’ body diameters shall measure no less than the dimensions in Table 4.
10.3 Bend Section—The bend section of bent anchor bolts shall have a cross-sectional area not less than 90 % of the area of
straight portions. The area in the bend shall be calculated by the foll
...