VOLTENO MF-530-4838 Self-Drilling Screw with Hex Washer Head 4.8 x 38 mm, Zinc Plated Carbon Steel, DIN 7504K, Silver

With a 4.8 mm diameter and 38 mm length, this self-drilling screw eliminates the need for pre-drilling in metal sheets up to 2.5 mm thick. The integrated drill point and hex washer head deliver fast, secure fastening in HVAC, roofing, and light gauge steel applications.

Overview

The VOLTENO MF-530-4838 is a self-drilling screw engineered for efficient metal-to-metal fastening. Its drill point cuts through steel and aluminum without pilot holes, while the hex washer head provides a large bearing surface and distributes clamping force evenly. The coarse thread ensures strong engagement in thin materials, and the zinc plating offers moderate corrosion resistance for indoor and sheltered outdoor use.

What stands out

• Self-drilling point: no pre-drilling required for fast installation.
• Hex washer head (HWH) with integrated washer: prevents over-driving and improves load distribution.
• External hex drive: 8 mm wrench size for reliable torque transfer.
• DIN 7504K compliant: meets European standard for self-drilling screws.
• Zinc plated carbon steel: balances cost and corrosion protection.

Technical details

• Nominal diameter: 4.8 mm
• Length: 38 mm
• Head type: Hex washer head (HWH)
• Drive type: External hex, 8 mm wrench size
• Head diameter: approx. 10 mm
• Material: Carbon steel
• Finish: Zinc plated (silver)
• Point type: Drill point
• Thread type: Coarse thread
• Thread direction: Right-hand
• Standard: DIN 7504K
• Application: Fastening metal sheets, profiles, HVAC, roofing, light gauge steel structures

Our verdict

A dependable self-drilling screw for metal-to-metal fastening, offering quick installation and reliable holding power in thin materials. The hex washer head ensures a secure, flush finish, while the zinc plating provides adequate corrosion resistance for most indoor and sheltered outdoor applications.