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UL 1598 5.10.2 Self-threading screws, including sheet-metal screws, used to secure electrical or enclosure# d B# O; F( _ @* A) N$ w
component parts in place or together, shall comply with the self-threading screw torque test in Clause8 \0 S; }, ~# P! [6 ^0 T# _' i
16.14, when the screw threads into nonferrous metal or polymeric material.* H" ^! e+ \- l2 [* F
! i5 ]; Q) R6 [0 @7 f; A; z这里讲了when the screw threads into nonferrous metal or polymeric material.,要做self-threading screw torque test
' T g' T7 @9 k x& Y: W" V$ o- ]2 s如果旋入的是其他材料 比如陶瓷呢?
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