JB/T 3411.114-1999 Nut size

JB/T 3411.114-1999 This standard is a revision of JB 3525-83 "Nut Dimensions". Only the following points have been modified during the revision, and the main technical content has not changed: - Writing format; - Standard name plus English; - Relevant reference standards and related contents; - Thread drawing method. This standard adopts ISO 839/Ⅱ:1977 "Milling cutter bar with 7/24 taper shank Part 2: Accessories" in a non-equivalent manner. This standard specifies the type and size of nuts. This standard is applicable to JB/T 3411.110-1999 "7:24 taper shank milling cutter bar size" and JB/T 3411.111-1999 "Milling cutter bar size with Morse taper shank". JB/T 3411.114-1999 Nut size JB/T3411.114-1999 Standard download decompression password: www.bzxz.net

ICS25.080.01
Machinery Industry Standard of the People's Republic of China
JB/T3411.114-1999
Nut dimensions
NutDimensions
Issued on 1999-05-20
State Bureau of Machinery Industry
Implementation on 2000-01-01
1 Scope
Machinery Industry Standard of the People's Republic of China
Nut dimensions
NutDimensions
This standard specifies the types and dimensions of nuts. JB/T3411.114—1999
Replaces JB352583
This standard applies to JB/T3411.110—1999 "Dimensions of 7:24 Taper Shank Milling Cutter Arbors" and JB/T3411.111—1999 "Dimensions of Morse Taper Shank Milling Cutter Arbors".
2 Types and dimensions
Types and dimensions are as specified in the following figures and tables. mm
Basic size
Applicable shank diameter
Marking example:
d-M20×2 nut:
MB3×2
(1~1.25）d
M45×3
Greater than the width of the corresponding wrench
Nut M20X2JB/T3411.114-1999
Approved by the State Machinery Industry Bureau on 1999-05-2040
Implemented on 2000-01-01
Mechanical industry standard
Nut size||t t||JB/T3411.114—1999
Published by the Machinery Standardization Research Institute of the Ministry of Machinery Industry Printed by the Machinery Standardization Research Institute of the Ministry of Machinery Industry (No. 2 Shouti South Road, Beijing: Postal Code 100044)*
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