Piasta self-drilling screw DIN 7504K A2 4.8x25 Ruspert

Durable and reliable self-drilling screw for joining metal structures without pre-drilling. Ideal for sheet metal and steel profile applications where precise, secure fastening is required.

Features

The screw is made of bimetal: the head and shank are A2 (AISI 304) stainless steel to ensure durability.

The drill point and first threads are made of hardened steel, allowing efficient penetration into steel without a pre-drilled hole.

Precise dimensions and minimal thread tolerance ensure optimal fastening results.

Technical specifications

Size: 4.8 x 25 mm

DIN standard: 7504K

Material thickness: 1.75–4.4 mm

Hex head (wrench size): 8 mm

Flange diameter: 9.75 mm

Material: Bimetal (A2 stainless steel) and Ruspert coating

Applications:

Joining steel profiles together
Fastening directly to steel structures without pre-drilling