
1. Hexagon Head with Washer ( Baut Roofing Halus )
2. Hexagon Head without Washer ( Sekrup Roofing Kasar )
3. ROOFING BAJA RINGAN
4. Flat Head Countersunk SELF DRILLING SCREW
5. Philip Pan Head SELF DRILLING SCREW
6. TRUSS HEAD SDS
Variasi Stok mulai dari material Mild steel , pelapisan ( Spesial Coating ) ANTI KARAT , & Roofing Screw STAINLESS STEEL 410. Panjang Sekrup diukur dari leher ( bawah kepala ) sampai ujung body Screw bukan dari Kepala Screw .
Nominal Screw Size :
| Thread Diameter | Metric System Equivalent |
| #4 | 2.9 mm |
| #5 | 3.2 mm |
| #6 | 3.5 mm |
| #7 | 3.9 mm |
| #8 | 4.2 mm |
| #9 | 4.5 mm |
| #10 | 4.8 mm |
| #12 | 5.5 mm |
| #14 | 6.3 mm |