Standard fasteners & hardware · Bolts and screws

Button-head screws

Button-head screws from REL India’s standard fasteners and hardware range — standard or made to your drawing.

Representative 3D

Specifications

Specifications

Family
Standard fasteners and hardware
Group
Bolts and screws
Standards
Metric, inch/UNC/UNF, DIN, ISO, ASME, IFI
Principal range
M3–M24
Threaded rods / bars
Carbon, alloy and stainless steel, lengths up to 5,000 mm

Exact grade, size, finish and standard are confirmed against your drawing or enquiry.

Industries

Used in

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Standards

Standards for button-head screws

  • ISO 7380-1
  • ISO 7380-2 (with flange)
  • ASME B18.3

Also made to customer drawings and to other national or company standards on request.

Button head screws ISO 7380-1 CSV PDF

Reference only — confirm against drawing. ISO 7380-1 covers M3–M16. Larger sizes: made to drawing.

M30.55.71.652
M40.77.62.22.5
M50.89.52.753
M6110.53.34
M81.25144.45
M101.517.55.56
M121.75216.68
M162288.810