Approved Laboratory List
Asakawa Screw Co., Ltd.
Laboratory Listing by Accreditation Body
Laboratory Listing by Country & State
Laboratory Listing by Lab Name
Lab Code: N200197-0
Lab Name: Asakawa Screw Co., Ltd.
Accrediting Body: NVLAP/NIST
Laboratory Contact:
Mr. Tatsuhiko Asakawa
1261 Nippa-cho, Kohoku-ku
,
Yokohama 223
JAPAN
Phone: 045-531-1292
Fax: 045-543-1500
E-Mail:
Dimensional Inspection
Dimensional Inspection
Dimensions of fasteners - bearing surface squareness
JIS B1071 -
STATUS: Accredited
Start Date: / / Eff. Date: 11/17/1997 Exp. Date: 12/31/1998
Method of Verification for Size and Geometry of Threaded Fasteners
Dimensions of fasteners - flange screw heads and flange nuts
JIS B1190 -
STATUS: Accredited
Start Date: / / Eff. Date: 11/17/1997 Exp. Date: 12/31/1998
Hexagon Nuts with Flange
Dimensions of fasteners - gaging for slotted nuts
JIS B1170 -
STATUS: Accredited
Start Date: / / Eff. Date: 11/17/1997 Exp. Date: 12/31/1998
Hexagon Slotted and Castle Nuts
Dimensions of fasteners - hexagon and double hexagon (12 point) and spline sockets
JIS B1180 -
STATUS: Accredited
Start Date: / / Eff. Date: 11/17/1997 Exp. Date: 12/31/1998
Hexagon Head Bolts and Hexagon Head Screws
Dimensions of fasteners - straightness
JIS B1071 -
STATUS: Accredited
Start Date: / / Eff. Date: 11/17/1997 Exp. Date: 12/31/1998
Method of Verification for Size and Geometry of Threaded Fasteners
Surface texture
JIS B1071 -
STATUS: Accredited
Start Date: / / Eff. Date: 11/17/1997 Exp. Date: 12/31/1998
Method of Verification of Size and Geometry of Threaded Fasteners
Mechanical and Physical Testing and Inspection
Hardness
Microhardness of fasteners
JIS Z2244 -
STATUS: Accredited
Start Date: / / Eff. Date: 11/17/1997 Exp. Date: 12/31/1998
Method of Vickers Hardness Test
Rockwell hardness of fasteners
JIS Z2245 -
STATUS: Accredited
Start Date: / / Eff. Date: 11/17/1997 Exp. Date: 12/31/1998
Method of Rockwell and Rockwell Superficial Hardness Test
Rockwell superficial hardness of fasteners
JIS Z2245 -
STATUS: Accredited
Start Date: / / Eff. Date: 11/17/1997 Exp. Date: 12/31/1998
Method of Rockwell and Rockwell Superficial Hardness Test
Vickers hardness - test forces from 9.807 to 1176 N (1 to 120 kgf)
JIS Z2244 -
STATUS: Accredited
Start Date: / / Eff. Date: 11/17/1997 Exp. Date: 12/31/1998
Method of Vickers Hardness Test
Proof
Proof load of full-size externally threaded fasteners
JIS B1051 -
STATUS: Accredited
Start Date: / / Eff. Date: 11/17/1997 Exp. Date: 12/31/1998
Mechanical Properties of Steel Bolts and Screws; Sec. 4.2.4, Proof Load Test
Proof load of internally threaded fasteners (nuts)
JIS B1052 -
STATUS: Accredited
Start Date: / / Eff. Date: 11/17/1997 Exp. Date: 12/31/1998
Mechanical Properties of Steel Nuts
Tensile
Axial tensile strength of full-size threaded fasteners
JIS B1051 -
STATUS: Accredited
Start Date: / / Eff. Date: 11/17/1997 Exp. Date: 12/31/1998
Mechanical Properties of Steel Bolts and Screws; Sec. 4.2.2, Tensile Test of a Product
Wedge tensile strength of full-size threaded fasteners
JIS B1051 -
STATUS: Accredited
Start Date: / / Eff. Date: 11/17/1997 Exp. Date: 12/31/1998
Mechanical Properties of Steel Bolts and Screws; Sec. 4.2.3, Wedge Tensile Test
Yield strength of full-size externally threaded fasteners
JIS B1051 -
STATUS: Accredited
Start Date: / / Eff. Date: 11/17/1997 Exp. Date: 12/31/1998
Mechanical Properties of Steel Bolts and Screws
Torque-tension
Torque-tension of full-size threaded fasteners
SAE J174 -
STATUS: Accredited
Start Date: / / Eff. Date: 11/17/1997 Exp. Date: 12/31/1998
Torque-Tension Test Procedure for Steel Threaded Fasteners
Washer Tests
Embrittlement test of washers
JIS B1252 -
STATUS: Accredited
Start Date: / / Eff. Date: 11/17/1997 Exp. Date: 12/31/1998
Conical Spring Washers
Twist test of lock washers
JIS B1251 -
STATUS: Accredited
Start Date: / / Eff. Date: 11/17/1997 Exp. Date: 12/31/1998
Spring Lock Washers
Metallography
Metallography
Decarburization and case depth measurement in fasteners
JIS B1051 -
STATUS: Accredited
Start Date: / / Eff. Date: 11/17/1997 Exp. Date: 12/31/1998
Mechanical Properties of Steel Bolts and Screws
JIS B1051 -
STATUS: Accredited
Start Date: / / Eff. Date: 11/17/1997 Exp. Date: 12/31/1998
Mechanical Properties of Steel Bolts and Screws
Determination of grain size of fasteners
JIS G0551 -
STATUS: Accredited
Start Date: / / Eff. Date: 11/17/1997 Exp. Date: 12/31/1998
Methods of Austenite Grain Size Test for Steel
Microscopic examination of fasteners by etching
ASTM E407 -
STATUS: Accredited
Start Date: / / Eff. Date: 11/17/1997 Exp. Date: 12/31/1998
Standard Practice for Microetching Metals and Alloys
Surface discontinuities of externally threaded fasteners
SAE J123 -
STATUS: Accredited
Start Date: / / Eff. Date: 11/17/1997 Exp. Date: 12/31/1998
Surface Discontinuities on Bolts, Screws, and Studs
Surface discontinuities of internally threaded fasteners (nuts)
SAE J122 -
STATUS: Accredited
Start Date: / / Eff. Date: 11/17/1997 Exp. Date: 12/31/1998
Surface Discontinuities on Nuts
Non Destructive Tests
Non Destructive Tests
Magnetic particle inspection of fasteners
JIS G0565 -
STATUS: Accredited
Start Date: / / Eff. Date: 11/17/1997 Exp. Date: 12/31/1998
Method for Magnetic Particle Testing of Ferromagnetic Materials and Classification of Magnetic Particle Indication