JB/T 7384.13-1994 Fasteners Self-tapping locking screws circumferential circle diameter gauge

This standard specifies the type and size of the go and stop gauges for testing the circumscribed circle diameter of self-tapping screws. This standard applies to item 1 of table 1 of ZB J13 002.3. JB/T 7384.13-1994 Fasteners Self-tapping Locking Screws Circumscribed Circle Diameter Gauge JB/T7384.13-1994 Standard download decompression password: www.bzxz.net

Mechanical Industry Standard of the People's Republic of China
JB/T7384.1~7384.18-94
Special Inspection Fixtures for Fasteners
Published on 1994-07-26
Ministry of Machinery Industry of the People's Republic of China
Implemented on 1995-07-01
Mechanical Industry Standard of the People's Republic of China
Fasteners
Gauges for the Circumscribed Diameter of Self-drilling Locking Screws
Subject Content and Scope of Application
This standard specifies the type and size of through and stop gauges for detecting the circumscribed diameter of self-drilling locking screws. This standard applies to item 1 of Table 1 of ZBJ13002.3. Cited standards
GB1957
GB6559
Smooth limit gauge
Screw coarse pitch ordinary thread series for tapping screws ZBJ13002.3 Fastener test methods Dimensions and geometric accuracy of tapping screws 3 Types and dimensions
The types and dimensions of the external ring diameter gauge for tapping screws shall be as specified in Figure 1 and Table 1. General RegulationbzxZ.net
Approved by the Ministry of Machinery Industry on July 26, 1994
JB/T7384.13-94
Implemented on July 1, 1995
Thread Specifications
Basic Dimensions
Limit Deviation
Basic Size
Limit Deviation
Basic Size
Limit Deviation
± 0. 007
JB/T 7384. 1394
±0. 0135
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