Skip to main content

Screws and turned parts for all manufacturing branches

ERMA-screws can be employed in rail vehicles, utility vehicles, agricultural machines, tracklaying vehicles, automobile manufacturing, in axle constructions, gear manufacturing, construction of heavy machinery and in many other areas.

ERMA - Screws and turned parts

A part of our manifold range of items:

Reduced-shaft bolts, pan head screws, square-head bolts, fit-bolts, hexagon head bolts, hexagon socket head cup srews, wheel bolts, bearing bolts, threaded bolts, clevis pins with head and many more.

We also offer services: e.g. forging blanks & rolling threads.

Special screws - Specialist guaranteed precision

If required with


WAZ 2.2
WAZ 3.1
WAZ 3.2
TÜV-, DB-, VDA-, DNV- and Germanischer Lloyd acceptances by approved manufacturers according to AD 2000 regulations WO




Strong connections with special surfaces

Materials, surfaces

ERMA-srews and bolts are manufatured from all common materials including stainless steel, acid resisting steel and heatproof (inductive hardening, case hardening, quenched and tempered). Our extensive raw material stock in all common sizes and qualities ensures quick delivery.

In cooperation with well-known electroplating workshops we manufacture joining elements with surfaces according to your requirements (for example galvanized, phosphattized, hard chrome plated, Dacroment). Espacially Chrome VI free coatings for the automotive industry (e.g. Geomet Plus, Delta-Protect).