JB/T 58651.13-1999 Fastener product quality classification Eyebolts (nuts)

JB/T 58651.13-1999 Fastener product quality classification Eyebolt (nut) JB/T58651.13-1999 Standard download decompression password: www.bzxz.net

Mechanical Industry Standards of the People's Republic of China
JE/T 58651.1~58651.14-1999
JB/T58652-1999
Quality Classification of Fastener Products
(Internal Use)
Published on 1999-12-30
National Bureau of Machinery Industry
Implemented on 2000-06-01
Mechanical Industry Standards of the People's Republic of China
Quality Classification of Fastener Products Eyebolts [Nuts] (Internal Use)
JB/T58651.13-1999
Substitute for JB/T 58651 [3--93
This standard specifies the principles and methods for grading the quality of eyebolts (hereinafter referred to as eyebolts and eyenuts) produced according to national standards and industry standards. It can also be used as a reference when grading the quality of eyebolts and eyenuts produced according to other standards.
This standard adopts one-level grading, namely superior products, first-class products, and new products. This standard is applicable to single-specification products accepted by the industry. The dimensional codes used in this standard are consistent with the current eyebolt (screw property) standards. 2 Referenced standards
The texts contained in the following standards constitute the text of this standard through reference in this standard. When this standard is published, the versions shown are valid. All standards will be revised. Therefore, parties using this standard should consider the possibility of using the new versions of the following standards: GB7I90-1585
GB/J 825--J988
GB:T 214 2.1996
GR/T 1216 1985
GR/T 1934---1983
JR.T7182—1991
F3.8789—1998
[3 58651.]—[999
3 Nouns, expressions and calculation formulas
Fastener acceptance inspection, marking and packaging
Quality ring screws
Vernier calipers Vernier calipers
Outside micrometers
Screw gauges
Fastener product quality classification
Definitions of defect reduction, defect reduction weighting and unit defect score standards and the calculation formula of unit defect score shall be in accordance with JB5B651.1. 4 Variable items Items, sampling plan, defect level and weighted value Screws: The inspection items, sampling plan, defect level and weighted value of screw products shall be as specified in Table 1. 5 Grading standards
The grading standards of screws and nuts shall be as specified in Table 2. 6 Inspection methods
The inspection methods of screws and nuts shall be as specified in Table 3. Approved by the State Machinery Industry Bureau on December 30, 1999 and implemented on June 1, 2000
JB/T58651.131999
Account: External screw effect (medium light and small diameter) effect certification standard: Internal support effect (medium light and large diameter frequency pattern standard (external frequency pattern single diameter) bzxz.net
Single ten-wire limit inner end grade!
The front of the machine support is signed with some rounded corners and flat coal
The diameter of the outer system
The diameter of the inner ball pattern
The length of the "
My business teaches my shop
The specification of the nut support and the effective sampling test needs the user
Division of the county or D
The high connection of the platform
The ring period of the mountain
Avoid the child sugar epidemic. ,
Delivery mold
A roller surface is not
Axial guarantee number of loads
Quality products, etc.
Combined pants products
Jixiang case
Single danger not divided into elegant
0. 10 F.263
More effective overview! Externally respected effective sex
path use Ozawa!
Welcome to the fuel efficiency of the belt
path people allowed
lack [external single ten
stop Ke: for a number of single ·
teaching and department of cultural environment in the country
foreign media people net:
power media the small light
screws safe!
level order branch line
fuel efficiency line
Ring drop
Production department road or D
JB door 5865L13—1999
Extension of the normal effect external standard
General effect standard
On the Rui pattern ring now
On the production you
Special half grid plate or
Guangyu cross standard
Special! -The scale of the display case
Flat white standard This requires scale
Standard, the standard will
G1.T 3934
G5-T 3934
GB:J3934
GRVT 3934
GB\[216
GB/T'3934
GB/T1214.2
5T 8768
GB:T1214.2
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GH/1t214.2
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GD/T 1214.2
格方证
用均环脱應人，應可以以可可可过
则：将赛规整人，應可以預可可可过三过用将环现距人，仁可以过個瑞打退规起广节！
中平现导致人螺螺均其消螺
分：有器不超逆心想也（扫退驾起起计件
测沒心安测品
在沒长，在
的减輕大內尚欣
月，物室思府人年平此部分
通消旁规息能利池或：山端案规新人碳母需或螺无The sum of the resistance volume: whr
with the long side of the explosion
from the support and monitoring system new Pei effect Er standard south store distance high! Real out of the deep tour real ring present inner net busy long word
fold in the H
outside the load surface d,
back from the diameter information
material science mark piece state Yi Pu monitoring Shenzhen Fusi
first - second surface defect
second type table transfer index
axial guarantee recommended
JB/T58651.13—1999
table 3 (end)
standard, specification
GB/T 1214.2
Caliper or special caliper, caliper
GB/T1214.2
GB/T1214.2
2GB.T 825--68 Section 5.2.4 or
JB/T7382 provisions
Accept GB/T835--88 Section 5.2.6 or
17387 current provisions
According to GR/T825--8 Section 5.22 or
JB/T7382 provisions
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