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By certification 
No head, bolt with hexagonal groove on one side and flat on the other side
Product name:flat Point Grub Screw
Product Standards： GB /T 77 - 2000
DIN 913 - 1980
ISO 4026 - 2003
JIS B 1177 - 2007
ANSI/ASME B 18.3 - 2003
UNI 5923 - 1985
NF E 25-171 - 2004
BS 2470 - 1973
Common Specifications：
Thread diameter：M6\M8\M10\M12\M14\M16\M18\M20\M24
Thread length：10mm\20mm\25mm\30mm\35mm\40mm\50mm\60mm
Product material：35k/45#
Product grade：8.8
Surface treatment：blackened
Industry use：Machinery Industry
Production site: Handan City, Hebei Province, China
Means of transaction：TT/LC
MOQ：2Ton
Product packaging：Tray+Carton
Delivery period: 30 days
1. Conical end of set screw (pointed): generally used in places that are not long removed after installation, among which
1) Tip - suitable for parts with less hardness;
2) Concave end - suitable for parts with greater hardness;
2. Cone end of the set screw (no point): It is necessary to make a hole on the top tightening surface of the part first, so that the cone surface is pressed on the edge of the hole to enhance the ability to transmit loads;
3. Flat end round tip of the set screw: it is mostly used in the connection of the often adjusted position, and the load is small. The flat end - large contact area, can be used for parts with high top hardness, and the top tightening surface should be a flat round tip - The surface of the part needs to have U-shaped grooves, V-shaped grooves or circular sockets, etc.;
4. Cylindrical end of the set screw: used for frequent adjustment, or to fix the parts mounted on the pipe shaft (thin-walled parts), the cylindrical end enters the large hole on the pipe shaft, and the end can be transmitted by shearing action For larger loads, there should be a device to prevent loosening when using this type of screw.
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