Thin sheet screws join sheets chiplessly without pre-drilling, piercing or punching.

Thin sheet screws join sheets quickly and securely

Thin sheet screws are flow drilling screws. They form a metric nut thread chiplessly in the material bead created when drilling in, usually without pre-drilling, piercing or punching. The connection is particularly durable due to cold solidification.

  • Thin sheet screws with hexagon head, pan head, countersunk head.

Thin sheet screws are manufactured in double-stroke technique on our cold forming presses.

Thin sheet screws cut their thread chiplessly into the part (or to be more exact: into the material bead created when drilling in), for example in two overlapping sheet sections. No pre-drilling, piercing or punching is required as a rule. Since the thread heats up when cutting and cools down again afterwards, the connection is particularly durable (cold solidification).

Assembly of sheet sections with thin sheet screws saves time and is kind on the material because there are no chips and no nuts are needed.

Mechanical engineering, automotive industry, electrical industry, telecommunications industry, etc.

a. Materials
Steel, case-hardened and quenched and tempered steels, high-grade steels

b. Strength classes
3.6 – 12.9

c. Thread types
Tapping screw thread

d. Drive types
All common: PZ – PH – TX – slot – combi-slot and special solutions such as safety drives

e. Head types
All common

f. Dimensions
Ø 3 – 8 x 160 mm

g. Additional processings
End processing: Shank slots, oval half dog point, coned half dog point, long dog point or other as required
Recutting

h. Surfaces
All common: galvanised (CrVI-free, RoHS-conform), nickel-plated, chromatised, Delta-Tone and Seal, Dacromet, Geomet etc. according to automotive and electrical industry specifications (VDA standard)

i. Coatings
Thread locks, thread seals (e.g. Tuflok, ScotchGrip, Precote, Loctite, wax coatings).
Samples according to VDA , PPAP on request

j. Heat treatment
All common: Annealing, carbonitriding, drawing, tempering, case hardening. Others on request

k. Batch sizes
from 30,000 pcs. (smaller quantities by agreement)

l. Documentations
Available for first sampling: Standard ISIR as cover sheet sampling; VDA Volume 2 Level 0-3; PPAP Level 1-3.

Self-tapping screws

Your contact:
Torsten Häufler

Torsten Häufler

Authorized officer / Sales

Phone: +49 (0) 23 51 . 97 85 – 18
Fax: +49 (0) 23 51 . 7 85 30
Email: t.haeufler@eichhoff-schrauben.de

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