Approved Laboratory List
Okai Iron Works Co., Ltd.
Laboratory Listing by Accreditation Body
Laboratory Listing by Country & State
Laboratory Listing by Lab Name
Lab Code: N200299-0
Lab Name: Okai Iron Works Co., Ltd.
Accrediting Body: NVLAP/NIST
Laboratory Contact:
Mr. Yasuhiro Okai
3-12-41 Tsuruhara
,
Izumisano Osaka 598-0071
JAPAN
Phone: 0724-63-6101
Fax: 0724-63-6228
E-Mail:
Dimensional Inspection
Dimensional Inspection
Dimensions of fasteners - bearing surface squareness
ISO 4759-1 -
STATUS: Accredited
Start Date: / / Eff. Date: 05/08/1998 Exp. Date: 03/31/1999
Tolerances for Fasteners - Part 1: Bolts, Screws, and Nuts with Thread Diameters between 1 (inclusive) and 150 mm (inclusive) and Product Grades A, B, and C
External thread parameters - system 21
ANSI/ASME B1.3M -
STATUS: Accredited
Start Date: / / Eff. Date: 05/08/1998 Exp. Date: 03/31/1999
Screw Thread Gaging Systems for Dimensional Acceptability - Inch and Metric Screw Threads (UN, UNR, UNJ, M, and MJ)
Dimensions of fasteners - flange screw heads and flange nuts
ISO 4161 -
STATUS: Accredited
Start Date: / / Eff. Date: 05/08/1998 Exp. Date: 03/31/1999
Hexagon Nuts with Flange - Product Grade A
ISO 4162 -
STATUS: Accredited
Start Date: / / Eff. Date: 05/08/1998 Exp. Date: 03/31/1999
Hexagon Flange Bolts - Small Series
Dimensions of ISO grade A and B fasteners
ISO 4759-1 -
STATUS: Accredited
Start Date: / / Eff. Date: 05/08/1998 Exp. Date: 03/31/1999
Tolerances for Fasteners - Part 1: Bolts, Screws, and Nuts with Thread Diameters between 1.6 (inclusive) and 150 mm (inclusive) and Product Grades A, B, and C
ISO 4759-3 -
STATUS: Accredited
Start Date: / / Eff. Date: 05/08/1998 Exp. Date: 03/31/1999
Tolerances for Fasteners - Part 3: Plain Washers for Bolts, Screws and Nuts with Nominal Thread Diameters from 1 mm up to and including 150 mm - Product Grades A and C
Dimensions of ISO grade C fasteners
ISO 4759-1 -
STATUS: Accredited
Start Date: / / Eff. Date: 05/08/1998 Exp. Date: 03/31/1999
Tolerances for Fasteners - Part 1: Bolts, Screws, and Nuts with Thread Diameters between 1.6 (inclusive) and 150 mm (inclusive) and Product Grades A, B, and C
ISO 4759-3 -
STATUS: Accredited
Start Date: / / Eff. Date: 05/08/1998 Exp. Date: 03/31/1999
Tolerances for Fasteners - Part 3: Plain Washers for Bolts, Screws and Nuts with Nominal Thread Diameter from 1 mm up to and including 150 mm - Product Grades A and C
Dimensions of fasteners - hexagon and double hexagon (12 point) and spline sockets
ANSI/ASME B18.3 -
STATUS: Accredited
Start Date: / / Eff. Date: 05/08/1998 Exp. Date: 03/31/1999
Socket Cap, Shoulder and Set Screws (Inch Series)
ISO 4759-1 -
STATUS: Accredited
Start Date: / / Eff. Date: 05/08/1998 Exp. Date: 03/31/1999
Tolerances for Fasteners - Part 1: Bolts, Screws, and Nuts with Thread diameters between 1.6 (inclusive) and 150 mm (inclusive) and Product Grades A, B, and C
Internal thread parameters - system 21
ANSI/ASME B1.3M -
STATUS: Accredited
Start Date: / / Eff. Date: 05/08/1998 Exp. Date: 03/31/1999
Screw Thread Gaging Systems for Dimensional Acceptability - Inch and Metric Screw Threads (UN, UNR, UNJ, M, and MJ)
Surface texture
ISO 4288 -
STATUS: Accredited
Start Date: / / Eff. Date: 05/08/1998 Exp. Date: 03/31/1999
Geometrical Product Specifications (GPS) - Surface Texture: Profile Method - Rules and Procedures for the Assessment of Surface Texture
Mechanical and Physical Testing and Inspection
Adhesion
Adhesion of metallic coatings on fasteners
ISO 2819 -
STATUS: Accredited
Start Date: / / Eff. Date: 05/08/1998 Exp. Date: 03/31/1999
Metallic Coatings on Metallic Substrates - Electrodeposited and Chemically Deposited Coatings - Review of Methods Available for Testing Adhesion
Coating
Measurement of fastener coating thickness - magnetic methods
ASTM B499 -
STATUS: Accredited
Start Date: / / Eff. Date: 05/08/1998 Exp. Date: 03/31/1999
Standard Test Method for Measurement of Coating Thicknesses by the Magnetic Method: Nonmagnetic Coatings on Magnetic Basis Metals
Measurement of fastener coating thickness - microscopial method
ISO 1463 -
STATUS: Accredited
Start Date: / / Eff. Date: 05/08/1998 Exp. Date: 03/31/1999
Metallic and Oxide Coatings - Measurement of Coating Thickness - Microscopical Method
Hardness
Microhardness of fasteners
ISO 6507-2 -
STATUS: Accredited
Start Date: / / Eff. Date: 05/08/1998 Exp. Date: 03/31/1999
Metallic Materials - Hardness Test - Vickers Test - Part 2: HV 0.2 to Less Than HV 5
ISO 6507-3 -
STATUS: Accredited
Start Date: / / Eff. Date: 05/08/1998 Exp. Date: 03/31/1999
Metallic Materials - Hardness Test - Vickers Test - Part 3: Less Than HV 0.2
Rockwell hardness of fasteners
ISO 6508 -
STATUS: Accredited
Start Date: / / Eff. Date: 05/08/1998 Exp. Date: 03/31/1999
Metallic Materials - Hardness Test - Rockwell Test (Scales A - B - C - D - E - F - G - H - K)
Proof
Proof load of full-size externally threaded fasteners
ISO 898-1 -
STATUS: Accredited
Start Date: / / Eff. Date: 05/08/1998 Exp. Date: 03/31/1999
Mechanical Properties of Fasteners - Part 1: Bolts, Screws and Studs. Section 8.4: Proofing Load Test for Full Size Bolts.
Proof load of internally threaded fasteners (nuts)
ISO 898-2 -
STATUS: Accredited
Start Date: / / Eff. Date: 05/08/1998 Exp. Date: 03/31/1999
Mechanical Properties of Fasteners - Part 2: Nuts with Specified Proof Load Values. Section 8.1: Proof Load Test
Tensile
Axial tensile strength of full-size threaded fasteners
ISO 898-1 -
STATUS: Accredited
Start Date: / / Eff. Date: 05/08/1998 Exp. Date: 03/31/1999
Mechanical Properties of Fasteners - Part 1: Bolts, Screws and Studs. Section 8.2: Tensile Test for Full-Size Bolts, Screws and Studs.
Tension testing of machined specimens from externally threaded fasteners
ISO 898-1 -
STATUS: Accredited
Start Date: / / Eff. Date: 05/08/1998 Exp. Date: 03/31/1999
Mechanical Properties of Fasteners - Part 1: Bolts, Screws and Studs.
Section 8.1: Tensile Test for Machined Test Pieces
Total extension at fracture of externally threaded fasteners
ISO 3506 -
STATUS: Accredited
Start Date: / / Eff. Date: 05/08/1998 Exp. Date: 03/31/1999
Corrosion Resistant Stainless Steel Fasteners - Specifications
Section 6.4: Determination of Total Extension at Fracture (A1)
Wedge tensile strength of full-size threaded fasteners
ISO 898-1 -
STATUS: Accredited
Start Date: / / Eff. Date: 05/08/1998 Exp. Date: 03/31/1999
Mechanical Properties of Fasteners - Part 1: Bolts, Screws and Studs.
Section 8.5: Test for Strength Under Wedge Loading of Full-Size Bolts and Screws (Not Studs)
Yield strength of full-size externally threaded fasteners
ASTM F606 -
STATUS: Accredited
Start Date: / / Eff. Date: 05/08/1998 Exp. Date: 03/31/1999
Standard Test Methods for Determining the Mechanical Properties of Externally and Internally Threaded Fasteners, Washers, and Rivets.
Section 3.2.4 (Proof Load) Method 2, Yield Strength
Metallography
Metallography
Decarburization and case depth measurement in fasteners
ISO 2639 -
STATUS: Accredited
Start Date: / / Eff. Date: 05/08/1998 Exp. Date: 03/31/1999
Steel - Determination and Verification of the Effective Depth of Carburized and Hardened Cases
ISO 898-1 -
STATUS: Accredited
Start Date: / / Eff. Date: 05/08/1998 Exp. Date: 03/31/1999
Mechanical Properties of Fasteners - Part 1: Bolts, Screws and Studs.
Macroscopic examination of fasteners by etching
ISO 4969 -
STATUS: Accredited
Start Date: / / Eff. Date: 05/08/1998 Exp. Date: 03/31/1999
Steel - Macroscopic Examination by Etching with Strong Mineral Acids
Surface discontinuities of externally threaded fasteners
ISO 6157-1 -
STATUS: Accredited
Start Date: / / Eff. Date: 05/08/1998 Exp. Date: 03/31/1999
Fasteners - Surface Discontinuities - Part 1: Bolts, Screws, and Studs for General Requirements
ISO 6157-3 -
STATUS: Accredited
Start Date: / / Eff. Date: 05/08/1998 Exp. Date: 03/31/1999
Fasteners - Surface Discontinuities - Part 3: Bolts, Screws, and Studs for Special Requirements
Surface discontinuities of internally threaded fasteners (nuts)
ISO 6157-2 -
STATUS: Accredited
Start Date: / / Eff. Date: 05/08/1998 Exp. Date: 03/31/1999
Fasteners - Surface Discontinuities - Part 2: Nuts