Product Range

As a highly specialized manufacturer, we produce screws since 1899. Our strengths are high quality special fasteners with forged head from M 8 up to M 90, followed by complete machining and rolled threads.

Special screws and bolts

Internal serration bolts, shear bolts, reduced shaft bolts (expansion bolts), stud bolts, countersunk bolts, flat head screws, wheel studs, threaded bolts, double hexagon bolts, etc.

Hexagon-head bolts

Drawing parts or standard parts according to ISO 4014 (DIN 931), ISO 4017 (DIN 933), ISO 8765 (DIN 960), ISO 8676 (DIN 961), DIN 561 or DIN 564 with increased requirements

Hexagon socket screws

Drawing parts or standard parts according to ISO 4762 (DIN 912), ISO 10642 (DIN 7991), DIN 7984 or DIN 6912 with increased requirements

Fitted screws

Drawing parts or standard parts according to DIN 609, DIN 610, DIN 7968, DIN 7999,
HVP (DIN 6914/7968) with increased requirements

Square-head bolts

Drawing parts or standard parts according to DIN 478, DIN 479 or DIN 480 with increased requirements

Adjustable screws

Drawing parts or standard parts according to DIN 561, DIN 564 with increased requirements

Dimensional ranges

M 8 - M 90 or 3/8 "- 31/2" in nominal lengths up to 680 mm from special grades
or in grade 8.8, 10.9, 12.9 according to ISO 898-1.

Types of threads

Metric threads, metric fine threads, Whitworth threads, UNC-threads UNF-threads, UN-threads, special thread profiles and knurls