JB/T 7384.5-1994 Hexagon socket gauge for fasteners

This standard specifies the gauge type and size for testing the hexagonal width across flats, diagonal width and hexagonal hole depth of hexagon socket screws. This standard applies to items 13, 14 and 15 of Table 2 of ZB J13 002.1. JB/T 7384.5-1994 Hexagonal Gauge for Fasteners JB/T7384.5-1994 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
Issued on July 26, 1994
Ministry of Machinery Industry of the People's Republic of China
Implementation on July 1, 1995
Mechanical Industry Standard of the People's Republic of China
Fasteners
Hexagon Socket GaugebZxz.net
Subject Content and Scope of Application
JB/T7384.5-94
This standard specifies the gauge types and sizes for detecting the hexagonal width across flats, diagonal width and hexagonal hole depth of hexagon socket screws. This standard applies to items 13, 14 and 15 of Table 2 of ZBJ13002.1. Cited standards
GB1957
Smooth limit gauges
Fastener tolerances Bolts, screws and nuts
ZBJ13002.1 Fastener test methods Dimensions and geometrical accuracy of bolts, screws, studs and nuts 3
Types and dimensions
The types and dimensions of go gauges are as specified in Figure 1 and Table 1. Others
Thread specifications
Basic dimensions
Basic dimensions
Basic dimensions
Approved by the Ministry of Machinery Industry on July 26, 1994
Implementation on July 1, 1995
Thread specifications
Basic dimensions
Basic dimensions
Basic dimensions
Basic dimensions
Thread specifications
Basic dimensions
Basic dimensions
Basic dimensions
JB/T7384.S-94
Continued Table 1
+0.0375+0.045
Note, 1) Only applicable to hexagon socket set screws. 3. 2
The type and size of the stop gauge shall be in accordance with the provisions of Figure 1 and Table 2. 5
Flame thread specifications
Basic dimensions 2》
Basic dimensions
Limit deviation
Thread specifications
Basic dimensions
Limit deviation
Thread specifications
Basic dimensions"
Basic dimensions
Limit deviation
JB/T 7384.5—94
Note: 1) Only applicable to hexagon socket set screws. 14
2) Only applicable to hexagon socket set screws and 12.9 grade hexagon socket screws. 14
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