Stainless Steel A2 Phillips/Slotted Pan Head Self Tapping SEMS Screw with Double Flat Washer
Pre-assembled screws and washers, able to reduce installed cost.
SEMS screw, Pre-assembled screws and washers, user may select different type of washer such as flat washer, spring washer, toothed washer or square washer.
The greatest advantage of SEMS screw is able to reduce installation cost, easy to use and you will never lost your washer again.
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User may select different type of head style, such as pan head, flat head, socket head cup screw, and the greatest advantage of Self-tapping screws is the screw tip able to self-tapping in a pre-drilled hole, Self tapping screw often case-hardened.
A self-tapping screw is a screw which can tap its own hole as it is driven into the material.
Self-tapping screws have a wide range of tip and thread patterns, and are available with almost any possible screw headdesign. Common features are the screw thread covering the whole length of the screw from tip to head and a pronounced thread hard enough for the intended substrate, often case-hardened.
Tapping screw,screw,stainless steel
