John Tek stainless steel self drilling screw advantage:
*Compared to current stainless steel tek screw -
1. John Tek screw is superior to 300 series stainless steel in anti-corrosion performance;
2. better than 400 series stainless steel in hardness and drilling ability.
3. With size 5 drill point, #12 John Tek screw can drill through 13mm plate in steel; 5mm plate in stainless steel.
*Compared to current Bi-metal tek screw -
1. John Tek screw provides lower cost
2. better drilling speed than Bi-metal counterpart.
Size: #6~#16 (M2.9~M8)
Point: point#1,#2,#3,#4,#5 point
Taiwan