915 Generation 182Pcs Flat Head Self-Drilling Tapping Screw Kit

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Your affirmation is our greatest motivation ! ! !Product description:
High Quality 410 Stainless Steel, Stainless Steel with Superior Rust Resistant Ensure, More Solid and not Easy to Break;
It is wood drill tail screw, mainly used in steel structure caigang watt fixed can also be used for fixing the simple construction of the sheet material;
How to use? Self-Drilling Screws, eliminate the need for a pre-drilled hole. The length of the drill point determines the material thickness which the screw can reliably penetrate. When selecting a self-drilling screw design, it is important to consider the material thickness and type of materials to be joined. These stainless are great to use in environments that are damp;
Modified Truss head is extra wide with a low-profile dome and integral round washer, Phillips driver designed to prevent over-tightening.
Specification
size:4.2 * 13mm, 4.2 * 16mm, 4.2 * 19mm, 4.2 * 25mm, 4.2 * 32mm, 4.2 * 38mm:30 pcs each
colour: silver
Material: 410 stainless steel
size: M4.2
Package Contents:
1 * set of Drilling Screws
2 * batches
Only the above package content, other products are not included.
Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.