Material and specification of inner six corner bolt
In six angle bolt fasteners head and a screw rod, and a nut, fastener for connecting two parts with hole, this connection is called bolt connection, the nut is screwed off from the bolt, can make two parts separately, so the bolt can be detachably connected to.
Material of inner six angle bolt:
The inner six angle bolt is divided into iron bolts and stainless steel bolts according to the material. The iron is divided into 4.8 grades bolts according to the grade , 8.8 bolts, inner six corner bolt in the 10.9 stage bolts, and inner six corner bolt in the 12.9 stage bolts. Stainless steel six angle bolts according to the material is divided into stainless steel SUS202, six angle bolts, stainless steel SUS304 cylindrical head six angle bolts, SUS316 stainless steel six angle bolts.
Specification for inner six corner bolts
1. The inner six corners of the mouth allow a slight Round or Sink hole
2. The end chamfer d<=M4 is the end of the mill
3. Length of incomplete thread U<=2P
4. The top edge of the head may be round or chamfered and may be made by the maker
5, the bottom edge may be round or chamfer to Dw, but all must not have burr
6 、 internal six solution bolt standard: GB/T2672, GB/T2673, GB/T2674, GB/T6190 and GB/T6191.