Self-Drilling Tapping Screws (Pan/Hex Flange)
Self-drilling tapping screws: pan head (GB/T 15856.1) and hex flange (GB/T 15856.4), with EPDM sealing washer for roof cladding and building envelope.
Key Parameters
Standard Basis
GB/T 15856.1 / GB/T 15856.4
This family is confirmed by spec and drawing, without forcing one standard family.
Spec Range
M3–M6 · 0 sizes / 0 SKUs
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Grades
—
Confirm grade together with mating nuts, washers and certificate requirements.
What to include
Quoted by full spec
Prices differ by size, material, grade and finish, please inquire with full specifications. For non-standard specs, a drawing or site photo is welcome.
Diameter
Length
Material
Self-drilling tapping screws: pan head (GB/T 15856.1) and hex flange (GB/T 15856.4), with EPDM sealing washer for roof cladding and building envelope.
Spec Range
M3–M6 · 0 sizes
SKU Matrix
0 SKUs| SKU | Size (Dia × Len) | Material / Finish | Threading | Pitch | Unit Wt (g) | Action |
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