Mô tả
Vít đầu lục giác tiêu chuẩn M6 theo tiêu chuẩn DIN 933, làm bằng thép mạ niken
M1.6 to M52 standard DIN933 hex cap screws with grade 4.8 to 12.9 for vast applicaton requests .
Hex cap screw is also known as hex bolt . Normally . it has a hexagonal head with chamfer edges for hex socket wrench or spanner rotating during operation , machine thread style is fine or course and the threaded length is about 2/3 of total shaft length for the lengths over 70 mm .
