Find a huge selection of M3 Pan Head Square Drive Stainless Steel 304 316 Self Tapping Screw from China at Gangtong Zheli. Provide professional after-sales service and the right price, looking forward to cooperation.

M3 Pan Head Square Drive Stainless Steel 304 316 Self Tapping Screw Product：

Self tapping screw is composed of head, rod and rod end from head to tail. Each tapping screw has four elements: head shape, screw type, thread type and end type. Head shape - There are many different head shapes. There are round head (semicircle head), flat head, round head flange (with pad), flat head flange (with pad), pan head, pan head flange (with pad), countersunk head, countersunk head, cylindrical head, spherical cylindrical head, horn head, hexagonal head, hexagonal flange head, hexagonal flange (with pad) and so on. Ways to screw - There are many ways to screw. Screw: hexagonal, hexagonal flange, hexagonal flange, hexagonal flower shape, etc.; The pull twist: One word slot, cross slot H (Phillips), cross slot Z (Pozidriv), cross slot F (Frearson), square slot (Scrulox), compound slot, inner spline, inner hexagon flower shape (club groove), inner triangle, inner hexagon, inner 12 Angle, clutch groove, six blade groove, high torque cross groove and so on. Thread types - There are many kinds of threads. There are tapping thread (wide thread), machine thread, drywall screw thread, fiberboard screw thread, and other special threads. In addition, threads can be divided into single lead (single head), double lead (double head), multi lead (multi head) and high and low tooth double thread. End type - End type mainly has saw end, flat end. But according to the use of the function can be machined with cutting function of groove, groove, incision or similar to the shape of the drill bit and so on. In some standards, also saw end or flat end, there are different forms. It can be seen from the above introduction that there are various changes in the head shape of tapping screw, the way of pulling screw, the type of thread and the type of rod end. They can be combined with each other to develop a large number of different products belonging to the tapping screw category.

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