JB/T 7384.4-1994 Fastener tightening height test die

This standard specifies the type and size of the test die for testing the tightening height of hexagonal bolts and hexagonal nuts. This standard applies to item 7 of table 2 of ZB J13 002.1. JB/T 7384.4-1994 Fastener tightening height test die JB/T7384.4-1994 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 Fixture for Fasteners
Published on July 26, 1994
Ministry of Machinery Industry of the People's Republic of ChinawwW.bzxz.Net
Implemented on July 1, 1995
Mechanical Industry Standard of the People's Republic of China
Fastener
Wrench Height Inspection Die
1 Subject Content and Scope of Application
This standard specifies the type and size of the wrench height inspection die for testing hexagonal head bolts and hexagonal nuts. This standard applies to item 7 of Table 2 of ZBJ13002.1. Reference standards
GB1957
Smooth limit gauge
Fastener tolerances Bolts, screws and nuts
ZBJ13002.1 Fastener test methods Dimensions and geometric accuracy of bolts, screws, studs and nuts Types and dimensions
Types and dimensions of wrench height inspection die As specified in Figure 1 and Table 1, 0.5×45*
Thread specifications
Grade B, C
Approved by the Ministry of Machinery Industry on July 26, 1994
JB/T 7384. 4-94
Implemented on July 1, 1995
Thread specifications
Thread specifications
JB/T 7384.494
Continued Table 1
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