SELF-TAPPING
SCREWS

Self-tapping screws for every application

Production of self-tapping screws of every type, from the smallest to the most complex one. We can combine every type of head and rod mark with the desired self-tapping thread in our range. Self-tapping screws are widely used in industrial sectors such as electromechanical and automotive ones and have the characteristic to create their own seat in the metal, plastic, wood or wood agglomerate smooth hole.
Self-tapping screws
We manufacture screws with self-tapping thread with a diameter ranging from 1.6 mm to 8 mm.

Our range of self-tapping screws

Screws for metal:

according to UNI 6947 / DIN 7970 standards. They allow an efficient fastening on low-thickness metal materials; the presence of the tip helps to form the thread and to fit into the hole.

Screws for wood:

according to DIN 7998 / DIN 571 standards. With a 60° profile they are suitable for fastening to full wood. The height of the low crest allows to perform deep screwings without cracking the materials. For wood agglomerates with a 40 ° thread The thin crest (40°) and the small core allow efficient fixings on chipboard panels without any need for pre-drilling.

Screws for plastic materials:

according to UNI 9786 / UNI 10225 standards, with special profiles. The slim profile crest (20°, 30° or 25°) and the small diameter of the core are specific for plastic materials and allow secure screwing and clamping without cracking the plastic. Compared with metal self-tapping screws, with the same diameter, they allow reduced pre-drills, with the advantage of strengthening the pieces.

Hilo Screws:

according to UNI 9702 standard. Particular screw with two threads for plastics. It matches the practicality of the plastic screw with the fastening speed of double start screws.

Quick-thread screws:

These are double start screws. Lead is equal to pitch times the number of starts. Screws with several thread turns are used when a fast screw connection has to be carried out. These threads can be made with both metric and self-tapping profiles.

Materials

- Screw steel 4.8 - 5.8 - 8.8 - 10.9
- Brass
- Aluminum
- Copper
- Stainless steel

Technical tips on raw material

- Steel UNI 7356-74 CB4FF
- Steel UNI EN ISO 10263-2 C4C for products that do not require thermal treatments

- Steel UNI 7356-74 CB15
- Steel UNI EN ISO 10263-3 C18B2 for products requiring surface hardening (cementation carbonitriding)

- Steel UNI 7356-74 C21B
- Steel UNI EN ISO 10263-4 C23B2 for products requiring hardening treatments (8.8-10.9 to be obtained with stabilization treatment)

Threds

Screws with  Self-tapping thread

Self-tapping thread

Screws with  Double thread for plastics

Double thread for plastics

Screws with  Thread for particle boards

Thread for particle boards

Screws with  Self-forming thread for plastics

Self-forming thread for plastics

Screws with Self-drilling thread

Self-drilling thread

Screws with Thread for wood

Thread for wood

Heads

Cross recess pan head

Cross recess pan head

Combi cross recess/slot pan head

Combi cross recess/slot pan head

Large washer head

Large washer head

Hex washer cross recess head

Hex washer cross recess head

Combi slot/convex torx head

Combi slot/convex torx head

Torx pan head

Torx pan head

Combi flat cross recess/slotted pan head

Combi flat cross recess/slotted pan head

Slotted pan head

Slotted pan head

Flat slotted countersunk head

Flat slotted countersunk head

Domed slotted countersunk head

Domed slotted countersunk head

Convex hex socket head

Convex hex socket head

Hex socket pan head

Hex socket pan head

Special socket pan head

Special socket pan head

Hex socket flat countersunk head with marking

Hex socket flat countersunk head with marking

Hex washer head

Hex washer head

Anti-tamper pan head

Anti-tamper pan head

Stepped head

Stepped head

Flat square neck head

Flat square neck head

Convex square neck head

Convex square neck head