Where is it applied to? |
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Type of Screw Head, Drill Point, Length and Thickness (OD) |
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Screw Bolt Material and Strength |
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Screw Materials |
Type |
Strength |
Steel |
SWCH 18A, 22A |
Strong |
Stainless Steel |
SUS 410 |
Strong |
SUS XM-7 |
Weak |
Torsional Strength
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Tensile Value
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Shear Value
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Corrosion Resistance and Surface Treatment |
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Major Surface Treatment Methods and Applications |
Type |
Surface Treatment Methods |
Applied Specifications |
SWCH 18A SWCH 22A |
Phosphate Coating |
Indoor Specifications |
Zinc Electroplating(White,Other Colors) |
Megni Coating |
Outdoor Specifications |
SUS 410 |
Zinc Electroplating (White) |
Megni Coating |
SUS XM-7 |
Surface Cleaning | |
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Type of Screw Head |
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Pan / Head (P/H) |
Flat / Head (F/H) |
Hex / Washer (H/W) |
Bugle / Head (B/H) |
Pan / Washer (P/W) |
Wafer / Head (W/H) | |
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Type of Drill Point |
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2-3 PT |
Sharp |
4-5 PT |
Wing PT |
Stitcher |
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Fastening the 1~6mm thick steel plate |
Fastening the steel plate, wood panel or hinge of 1mm or less in thickness |
Fastening the steel plate of 6~12mm in thickness |
Fastening the wood to the steel plate |
Fastening and enforcing the wood and steel plate of 2mm or less in thickness | |
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Type of Screw Thread |
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Double Thread |
Hi-Low Thread |
Trapping Screw Thread |
MS Screw Thread |
Single Thread |
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A high fastening speed. It is used mostly for fastening thin steel plates. |
A high screw thread is followed repeatedly by a low one. It is used in fastening thin steel plates or wood panels. |
It is the most usual type of thread and it is used in the fastening of 6mm or less thick steel plates. |
It is applied to fastening thick steel plates. |
It is used mostly in fastening thin steel plates or plywood. | |