Adhesive tape for fastening

An adhesive tape for fastening comprising an adhesive layer on at least one surface of a substrate, wherein

• the substrate comprises a fiber paper having a basis weight of 40 to 50 g/m2, a density of 0.64 to 0.72 g/cm3, and a thickness of 0.052 to 0.090 mm and has a surface roughness (Ra) of 20 μm or less,
• the adhesive tape has a breaking strength of 100 N to 200 N/25 mm in a longitudinal direction, an elongation at break of 10% or less, an edge tearing resistance of 120 to 200 N/20 mm, and has fire resistance compliant with FMVSS 302, and
• a 500 g weight does not fall when the following test of holding power for cylindrical back surface of substrate is performed for the adhesive tape in a 95° C. environment for 30 minutes, wherein:
• an adhesive tape 1′ is attached to a surface comprising SUS of a cylindrical jig 2 having a diameter of 28 mm, further an adhesive tape 1 that has been cut to a width 10 mm is attached to a back surface of the adhesive tape 1′ such that the adhesive tape 1 is attached over a distance of only 30 mm along a circumferential surface of the cylindrical jig 2 from a vertical plane on the circumferential surface as a starting point, the weight is attached to an end of the starting point portion and left to stand still in a 95° C. environment for 30 minutes, and a check is performed to determine whether or not the weight has fallen due to separation of the adhesive tape 1.