SCHRIEVER STS Flange Head Screws H KN1031 Steel, 3x8

Article no.: 572976 Catalog no.: 1222
Price per 100 Pieces
Net price: CHF 15.20

Scale prices:

  • from 2000 Pieces
    CHF 16.43 / 100 Pieces
  • from 25000 Pieces
    CHF 10.27 / 100 Pieces
  • from 50000 Pieces
    CHF 5.95 / 100 Pieces
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  • Minimum order quantity 2000 Pieces
  • Order steps: 2000 Pieces
on request
In stock
19’890 pieces in stock
Packaging units:  1 Pack: 2000 Pieces

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Product details

Technical Data

t min 1.15 mm
L 8 mm
Drive Crosshead form H

Phillips (PH) screws, standardized in ISO 8764 (blades) and DIN 7962 (Phillips recess), are widely used. For screws with a Phillips cross slot, the flanks of the cross slots taper as the depth of the slot increases. With the PH system, threaded and self-tapping screws that are difficult to access can be tightened and loosened even from a slight acute angle to the screw axis.

d2 6
Material Steel hardened and tempered

Tempered steel is steel that is given high tensile and fatigue strength through tempering. The toughness is determined by the relationship between hardness and temperature of the subsequent tempering process. It is a transformation hardening in which the ratio of strength to toughness is specifically influenced.

Surface zinc plated blue

Blue galvanised finishes are produced either by electroplating in accordance with DIN EN ISO 4042 or by mechanical plating in accordance with DIN EN ISO 12683. For fasteners with a hardness exceeding 390 HV, there is a risk of hydrogen embrittlement during galvanising (electrolytic process). This necessitates specific measures (such as annealing), although these do not provide a 100 per cent guarantee against embrittlement.

Head shape Flange head
s 0.7 mm
k 2.1 mm
t max. 1.61 mm
d1 3 mm

Packaging units

1 Pack 2000 Pieces

Identification & Classification

Article number 572976
Catalog number 1222
EAN / GTIN 7610106112762
Manufacturer number 122238
Article class QG6

Description

Advantage:

The eight advantages of the Schriever STS® geometry

  • Optimal bonding of thermoplastics
  • Minimum radial stresses
  • High load capacity
  • Lower thread forming torques
  • elimination of the risk of relaxation
  • No material damage
  • 8° thread pitch enables optimum self-locking
  • Cost-effective

Application Area:

For connections of thermoplastics in the areas of construction, assembly and load-bearing capacity.

Application Notes:

Vectorial influences
of the main forming direction

Small radial forces - low radial expansion
Our 30° flank angle reduces radial expansion compared to conventional thread flanks with 60° (e.g. sheet metal screws). e.g. self-tapping screws)
A 60° flank angle leads to high surface pressures in screw connections and therefore to increased relaxation

Other Schriever products on request (heads, masses, special designs)

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