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DTI Washer ASTM F959 Grade 8.8 & 10.9

We are Manufacture, Stockholder & Distributors of DTI Washers, D.T.I Washers, Direct Tension Indicating Washers, ASTM F959 DTI Washers, ASTM F959M DTI Washers, 8.8 Grade DTI Washers, 8.8 Grade D.T.I Washer, 10.9 Grade DTI Washers, 10.9 Grade D.T.I Washer, Type 325 DTI Washers, Type 325 D.T.I Washer, Type 490 DTI Washers, Type 490 D.T.I Washer, ASTM F959 Inch Series, EN 14399-9 European Standard DTI Washers, Galvanized DTI Washers, Mechanically Galvanized DTI Washers

 

Compressible Washer Type Direct Tension Indicators for Use with Structural Fasteners, ASTM F959, ASTM F959M Direct Tension Indication (D.T.I) Washers, Load Indicator Washers, ASTM F959 Type 325, ASTM F959 Type 490, ASTM F959 Type 325-3, ASTM F959 Type 490-3, EN 14399-9

Manufacture of D.T.I Washer, Direct Tension Indicator Washers

Manufacture of D.T.I Washer with Orange Silicone, Compressible Washer

Manufacture of DTI Washer, Direct Tension Indicator Washers

Manufacture of DTI Washer with Orange Silicone, Compressible Washer

Manufacture of ASTM F959 Inch Series DTI Washer, D.T.I Washers

Manufacture of ASTM F959 Plain Black DTI Washer, D.T.I Washers

Manufacture of ASTM F959 Galvanized DTI Washer, D.T.I Washers

Manufacture of ASTM F959 Mechanically Galvanized DTI Washer, D.T.I Washers

Manufacture of ASTM F959M Metric Series DTI Washer, D.T.I Washers

Manufacture of ASTM F959M Plain Black DTI Washer, D.T.I Washers

Manufacture of ASTM F959M Galvanized DTI Washer, D.T.I Washers

Manufacture of ASTM F959M HDG Hot Dip Galvanized DTI Washer, D.T.I Washers

Manufacture of ASTM F959M Mechanically Galvanized DTI Washer, D.T.I Washers

Manufacture of ASTM F959 Type 8.8 (325) DTI Washer, D.T.I Washers

Manufacture of ASTM F959M Type 8.8 (325) DTI Washer, D.T.I Washers

Manufacture of ASTM F959 Type 10.9 (490) DTI Washer, D.T.I Washers

Manufacture of ASTM F959M Type 10.9 (490) DTI Washer, D.T.I Washers

Manufacture of ASTM F959 Type 325 (8.8) DTI Washer, D.T.I Washers

Manufacture of ASTM F959M Type 325 (8.8) DTI Washer, D.T.I Washers

Manufacture of ASTM F959 Type 490 (10.9) DTI Washer, D.T.I Washers

Manufacture of ASTM F959M Type 490 (10.9) DTI Washer, D.T.I Washers

Manufacture of EN 14399-9 European Standard DTI Washer, D.T.I Washers

Manufacture of EN 14399-9 Grade 8.8 (325) DTI Washer, D.T.I Washers

Manufacture of EN 14399-9 Grade 10.9 (325) DTI Washer, D.T.I Washers

Manufacture of EN-14399-9 Plain Black DTI Washer, D.T.I Washers

Manufacture of EN-14399-9 Galvanized DTI Washer, D.T.I Washers

Manufacture of EN-14399-9 HDG Hot Dip Galvanized DTI Washer, D.T.I Washers

Manufacture of EN-14399-9 Mechanically Galvanized DTI Washer, D.T.I Washers

DTI Washer ASTM F959 Size 1/2", 5/8", 3/4", 7/8", 1", 1.1/8", 1.1/4", 1.3/8", 1.1/2"

D.T.I Washers ASTM F959 Size 1/2", 5/8", 3/4", 7/8", 1", 1.1/8", 1.1/4", 1.3/8", 1.1/2"

DTI Washer ASTM F959M Size M12, M16, M20, M22, M24, M27, M30, M36

D.T.I Washer ASTM F959M Size M12, M16, M20, M22, M24, M27, M30, M36

ASTM F959 / F959M Type 325 / 8.8 DTI Washers with Orange Silicone

ASTM F959 / F959M Type 490 / 10.9 DTI Washers with Orange Silicone

EN 14399-9 / EN-14399-9 Type 325 / 8.8 DTI Washers with Orange Silicone

EN 14399-9 / EN-14399-9 Type 490 / 10.9 DTI Washers with Orange Silicone

 

D.T.I Washers - Plain Finish

D.T.I Washers - Mechanically Galvanized

D.T.I Washers - HDG Hot Dip Galvanized

D.T.I Washers - Zinc Plating

D.T.I Washers - Baked Epoxy Coating on mechanically deposited Zinc

D.T.I Washers Grade 8.8, 10.9

D.T.I Washers Type 325, Type 490

D.T.I Washers ASTM F959, F959M

D.T.I Washers EN 14399-9, EN-14399-9

D.T.I Washers with Orange Silicone, Without Silicone

D.T.I Washers for Structural Bolts Type 325s, 490s

DTI Washer - Plain Finish

DTI Washer - Mechanically Galvanized

DTI Washer - HDG Hot Dip Galvanized

DTI Washer - Zinc Plating

DTI Washer - Baked Epoxy Coating on mechanically deposited Zinc

DTI Washers Grade 8.8, 8.8S, 10.9, 10.9S

DTI Washers Type 325, Type 490

DTI Washers ASTM F959, F959M

DTI Washers EN 14399-9 EU Standard

DTI Washers with Orange Silicone, Without Silicone

DTI Washer for Structural Bolts Type 325S, 490S

 

ASTM F959 Direct Tension Indicating D.T.I Washers

ASTM F959 Direct Tension Indication DTI Washer use with Structural Fasteners

ASTM F959 - 09 Standard Specification for Compressible-Washer-Type Direct Tension Indicators for Use with Structural Fasteners

This specification covers the requirements for four types (Types 325, 325-3, 490, and 490-3) of compressible-washer-type direct tension indicators, in nominal diameter sizes ½ through 1 ½ in., capable of indicating the achievement of a specified minimum bolt tension in a structural bolt and are intended for installation under either a bolt head or a hardened washer. Steel materials used in the manufacture of direct tension indicators shall be designed, processed, heat treated, and protectively coated as specified. The direct tension indicators shall conform to required chemical composition, compression load, and dimensional values.

 1. Scope

1.1 This specification covers the requirements for compressible-washer-type direct tension indicators capable of indicating the achievement of a specified minimum bolt tension in a structural bolt.

1.2 Four types of direct tension indicators in nominal diameter sizes ½ through 1 ½ in. are covered:

1.2.1 Type 325—direct tension indicators for use with Specification A 325 Type 1 bolts or F or F 1852 assemblies.

1.2.2 Type 325–3—direct tension indicators for use with Specification A 325 Type 3 or F 1852 Type 3 assemblies.

1.2.3 Type 490—direct tension indicators for use with Specification A 490 Type 1 bolts or F 2280 assemblies.

1.2.4 Type 490–3—direct tension indicators for use with Specification A 490 Type 3 F 2280 Type 3 assemblies.

1.3 Direct tension indicators are intended for installation under either a bolt head or a hardened washer. (See Research Council on Structural Connections: Specification for Structural Joints Using ASTM A 325 or A 490 Bolts.)

1.4 This specification provides for furnishing Types 325–3 and 490–3 to a Chemical Composition Requirement or a Corrosion Resistance Index (CRI) at the suppliers option.

1.5 The values stated in inch-pound units are to be regarded as standard. No other units of measurement are included in this standard.

1.6 The following precautionary statement pertains only to the test method portions, Section 12 and Appendix X1 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.

ASTM Standards
A325 Specification for Structural Bolts, Steel, Heat Treated, 120/105 ksi Minimum Tensile Strength
A490 Specification for Structural Bolts, Alloy Steel, Heat Treated, 150 ksi Minimum Tensile Strength
B695 Specification for Coatings of Zinc Mechanically Deposited on Iron and Steel
D3951 Practice for Commercial Packaging
F436 Specification for Hardened Steel Washers
F606 Test Methods for Determining the Mechanical Properties of Externally and Internally Threaded Fasteners, Washers, Direct Tension Indicators, and Rivets
F1470 Practice for Fastener Sampling for Specified Mechanical Properties and Performance Inspection
F1852 Specification for Twist Off Type Tension Control Structural Bolt/Nut/Washer Assemblies, Steel, Heat Treated, 120/105 ksi Minimum Tensile Strength
F2280 Specification for Twist Off Type Tension Control Structural Bolt/Nut/Washer Assemblies, Steel, Heat Treated, 150 ksi Minimum Tensile Strength
G101 Guide for Estimating the Atmospheric Corrosion Resistance of Low-Alloy Steels

ASME Standard
ASMEB18.2.6 Fasteners for Use in Structural Applications

compressible-washer-type; direct tension indicators; DTI; indicators; Compressible washer-type indicators; Direct tension indicators (DTI); Fasteners (metal)--specifications; Indicators; Structural building materials/applications--specifications; Structural fasteners; Tensile properties/testing--metallic materials

 

DTI's are like little individual weigh scales, which measure the bolt tension developed during tightening, regardless of the torque resistance of the bolt. By far the simplest method, a DTI is put on one or the other end of all bolts, and after sn ing the joint by partially (but not fully) compressing the DTI, all the DTI's are "crushed" to the point where a feeler gage cannot be inserted half way around, or to the point where the DTI has squirted out silicone properly. DTI's are completely independent of the torque resistance of the bolt assembly, and because the compression of the DTI bumps can be seen by the eye, even without a feeler gage, bolt installers tend NOT to leave the bolts with insufficiently compressed DTI's.

 

Inspection & Approval Certificates : C/W Certificate (Calibration Works Certificate) EN 10204 3.1 / DIN 50049 3.1 / ISO 10474 3.1 Mill Test Certificate, NACE MR-0103 / NACE MR-0175 / ISO 15156, CE Marked, European Pressure Equipment Directive PED-97/23/EC, AD-2000-WO, ASME Boiler & Pressure Vessel Code Sec.II Part A Ed. 2015, API 6A (American Petroleum Institute), with 3.2 certificate duly Certified & Approved by LRS (Lloyd's Register), GL (Germanischer Lloyd), BV (Bureau Veritas), DNV (Det Norske Veritas), ABS (American Bureau of Shipping), SGS, TUV, RINA, IRS, NORSOK Approved Standard M-630, M-650 Rev.3         
 

If you have any requirement of above items, please feel free to contact us

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MUKESH SHAH         
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