JB/T 58651.3-1999 Fastener product quality classification stud

JB/T 58651.3-1999 Fastener product quality classification Stud JB/T58651.3-1999 Standard download decompression password: www.bzxz.net

Mechanical Industry Standards of the People's Republic of China
JB/r58651.1~58651.14-1999
JB/T58652-1999
Fastener Product Quality Grading
(Internal Use)
Published on December 30, 1999
National Bureau of Machinery Industry
200H0-(6-01 Implementation
Machinery Industry Standard of the People's Republic of China
Quality classification of fastener products, studs
(internal use)
IR/T5651.3—1999
Replaced by JB/586513—93
This standard specifies the principles and methods for quality classification of stud products produced according to national standards and industry standards. Quality classification of stud products produced according to other standards can also be used as a reference. This standard adopts a classification system, i.e. superior products, second-class products, and qualified products. This standard applies to batches of single-specification products accepted according to GB/T90. The dimensional numbers used in this standard are consistent with the current screw standards. Reference standards
The clauses contained in the following standards are constituted as the provisions of this standard through the use of non-standard dimensions. When this standard is in use, the versions shown are valid: all standards will be revised, and other parties using this standard should explore the possibility of using the latest versions of the following standards. GB:T 90—1985
GB/T1214.2—1996
GB/T 12161985
GB/r 12191985
GB/T3098.1198
(confirmed in 1988)
GR3098.61986
GB/T3034-1983
GE/T5779.1-1986
JET8788-1998
JD/T58651.1-1999
3 Nouns, terms and calculation formulas
Inspection, marking and packaging of fasteners
Vernier calipersVernier calipers
Outside micrometers
Dial indicators
Mechanical properties of bolts, screws and screwsFixtures with stainless steel threadBolts, nails: screws and nutsOrdinary thread 1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1 Temporarily stop the "twisted single middle warp
lift miscellaneous products
oyster pattern people explain:
no burning mosquito rod Germany
public length of two
saw blade length
some people's gold wind end length competitive products
screw outer straightness
second class surface defects
first class agricultural surface lack of yang
batch control function
non-destructive modification inspection
general Shenzhen property benefits
embryo ang and other wrinkles
JBT 58651.3-1999
Hexi products
First-class products
Excellent products
Jinzi products
First-class products
Excellent products
Xie Zilicha
Aoqiushi G Japanese/T3098.1B Hong Kong or GB3098.6 Current RMB 100
Unit actual fat content index
+[1263
0.105F0.263
F>0 370
0.147F≤0.370
F:0 147
Unique H
Butterfly mosquito gauge (thread
medium tax and small diameter)
Enough thread stop (screw effect
micro-product
fuel efficiency large diameter
no fuel efficiency
nominal length!
bad effect length b, and people
remaining city road length b
need point line
1. Surface defects of the surface of the machine
Replacement performance
Through end mosquito ring effect
Stop thread irregularWww.bzxZ.net
Standard
B/98651.3999
Standard. Certificate
G/T3934
GB/E3934
GB7T1216
GT 1214.2
GB/T 1214.2
GB/T1214.2
Digital indicator and special V-shaped
beam, platform and ruler
GB/T1219
JB/B self
pull the square
to be used to put the text into the environment, monitor the scraping problem
for the regulation, but not more than the commercial
moment [calculated from the day of retreat]
swimming and the whole hair
in the direction of the smoke effect axis. When measuring in the mutually overlapping
direction: when measuring at 12 places of the effective length:/5, when measuring in the level
two eliminations: but it should not produce cumulative measurement The end of the burning pattern and the outer measurement of the non-flowing burning pattern are measured at 1/2 of the new length of the large plastic machine. The product is measured from the end of the burning rod to the longest length of the clothes, and the length of the screw ring should be removed from the end of the effective ring specification. The screw is raised on the V-shaped frame. Use a dial indicator to measure the large part of the screw, turn it one step, and the pointer is higher than the maximum position. H12 is the measured value: Use the inspection platform and the center to measure according to the provisions of GB/T5779. "/M198.1 or AR/3098.6
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