ASTM-F2437 2011

$40.63

F2437-11 Standard Specification for Carbon and Alloy Steel Compressible-Washer-Type Direct Tension Indicators for Use with Cap Screws, Bolts, Anchors, and Studs

Published By	Publication Date	Number of Pages
ASTM	2011	6

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Categories: 21.060.01 - Fasteners in general, ASTM

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Description

ASTM F2437-11

Historical Standard: Standard Specification for Carbon and Alloy Steel Compressible-Washer-Type Direct Tension Indicators for Use with Cap Screws, Bolts, Anchors, and Studs

ASTM F2437

Scope

1.1 This specification covers the requirements for carbon and alloy steel compressible-washer-type direct tension indicators capable of indicating a specified bolt tension in cap screws, bolts, anchors, and studs.

1.2 Direct tension indicators in nominal diameter sizes ¼ through 2 ½ in. are covered.

1.3 There are two Types of DTIs covered by this specification, Type 1 and Type 2.

1.3.1 Type 1 DTIs are suitable for comparatively large bearing surfaces. Type 1 DTIs are available in Grades 55 and 105, which differ in the amount of tension they indicate at a prescribed gap (see Table 1).

1.3.2 Type 2 DTIs are suitable for comparatively smaller bearing surfaces. Type 2 DTIs are available in Grades 5 and 8, which differ in the amount of tension they indicate at a prescribed gap (see Table 1).

1.4 Direct tension indicators are intended for installation under a bolt or cap screw head, a hex nut, or against a hardened washer or other flat hardened surface.

1.5 The following precautionary statement pertains only to the test method portions, Section 12 and Appendix XI of this specification: This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

Keywords

compressible-washer-type; direct tension indicators; DTI; load indicators; load indicating washers; tension indicators; Compressible washer-type indicators; Compressible washer-type indicators–Carbon and alloy steel; Tension indicators

ICS Code

ICS Number Code 21.060.01 (Fasteners in general)

DOI: 10.1520/F2437-11

PDF Catalog

PDF Pages	PDF Title
1	Scope Referenced Documents
2	Terminology Ordering Information Materials and Manufacture TABLE 1
3	Chemical Composition Performance Requirements Dimensions Workmanship, Finish and Appearance Number of Tests and Retests FIG. 1 TABLE 2
4	Specimen Preparation Test Methods Inspection TABLE 3 TABLE 4
5	Rejection Certification Responsibility Product Marking Packaging and Package Marking Storage Keywords

Additional information

Standard Title	F2437-11 Standard Specification for Carbon and Alloy Steel Compressible-Washer-Type Direct Tension Indicators for Use with Cap Screws, Bolts, Anchors, and Studs
Published Code	ASTM
Publication Date	2011
Pages Count	6
ICS Codes	21.060.01 - Fasteners in general