Osculati A2 AISI 304 Stainless Steel Phillips Raised Countersunk Self-Tapping Screws DIN 7983 / UNI 6956, Ø2.9–6.3 mm

ID 1403454

$ 13.61

1-2 weeks delivery time

Diameter, mm:

Length, mm:

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25 pcs
50 pcs
100 pcs
200 pcs

Osculati DIN 7983 / UNI 6956 self-tapping screws are manufactured from A2 (AISI 304) stainless steel and feature a raised countersunk head with a cross-recessed drive. Their tapered underside fits into a suitable countersunk recess, while the slightly domed upper section remains visible above the mounting surface. The self-tapping thread is designed to form a mating thread in compatible materials, making these screws suitable for various panel, fitting and equipment installation applications. Available in 42 dimensional configurations across seven diameters from 2.9 to 6.3 mm and lengths from 10 to 60 mm. Supplied in cardboard boxes containing 25, 50, 100 or 200 screws, depending on the selected size.

Description
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Osculati A2 AISI 304 Stainless Steel Phillips Raised Countersunk Self-Tapping Screws DIN 7983 / UNI 6956

Osculati raised countersunk self-tapping screws are manufactured from A2 (AISI 304) stainless steel and are listed according to DIN 7983 / UNI 6956. They feature a cross-recessed drive, a raised countersunk head and a pointed self-tapping thread for fastening compatible materials and components.

The raised countersunk head combines a tapered underside with a slightly rounded upper section. The tapered portion fits into a matching countersunk recess, while the rounded top remains above the mounting surface, providing a neat, slightly raised finish.

This head design differs from the flat countersunk head used on DIN 7982 screws, which is intended to sit flush with the surrounding surface. It also differs from the conventional pan head used on DIN 7981 screws.

The cross-recessed drive allows tightening and removal using a compatible screwdriver or driver bit. The self-tapping thread is designed to form a mating thread in suitable materials during installation. Depending on the substrate, material thickness and fastening requirements, a correctly sized pilot hole may be necessary.

A2 (AISI 304) stainless steel provides corrosion resistance for general indoor, outdoor and appropriate marine applications. For installations involving high chloride concentrations or prolonged saltwater contact, the suitability of the material should be considered.

The range includes 42 dimensional configurations across seven nominal diameters: 2.9, 3.5, 3.9, 4.2, 4.8, 5.5 and 6.3 mm. Available lengths range from 10 to 60 mm, depending on the selected diameter. Each version is identified by an individual Osculati part number and supplied in a cardboard box with a specified quantity.

Technical Specifications

Brand	Osculati
Product Type	Raised Countersunk Self-Tapping Screw
Standards	DIN 7983 / UNI 6956
Material	A2 / AISI 304 Stainless Steel
Head Type	Raised Countersunk Head
Drive Type	Cross-Recessed / Phillips
Thread Type	Self-Tapping
Available Diameters	2.9, 3.5, 3.9, 4.2, 4.8, 5.5, 6.3 mm
Available Length Range	10–60 mm
Box Quantities	25, 50, 100, 200 pcs
Packaging	Cardboard Box
Number of Variants	42
Dimensions Format	Nominal Diameter × Screw Length

Features and Applications

Manufactured from A2 (AISI 304) stainless steel.
DIN 7983 / UNI 6956 raised countersunk screw design.
Tapered head underside for installation in a matching countersunk recess.
Rounded upper head section provides a slightly raised finish.
Cross-recessed drive for installation with a compatible screwdriver.
Self-tapping thread designed to form threads in suitable materials.
Suitable for compatible panels, fittings, equipment components and general fastening assemblies.
Available in seven nominal diameters and 42 dimensional configurations.
Supplied in cardboard boxes containing 25 to 200 screws, depending on size.

Available Sizes and Part Numbers

Size	Box Quantity	Osculati Part No.
2.9x13 mm	200 pcs	A2-7983-02.9X013
2.9x19 mm	200 pcs	A2-7983-02.9X019
3.5x10 mm	200 pcs	A2-7983-03.5X010
3.5x13 mm	200 pcs	A2-7983-03.5X013
3.5x16 mm	200 pcs	A2-7983-03.5X016
3.5x19 mm	200 pcs	A2-7983-03.5X019
3.5x25 mm	100 pcs	A2-7983-03.5X025
3.5x32 mm	100 pcs	A2-7983-03.5X032
3.5x38 mm	100 pcs	A2-7983-03.5X038
3.9x16 mm	200 pcs	A2-7983-03.9X016
3.9x19 mm	200 pcs	A2-7983-03.9X019
3.9x22 mm	100 pcs	A2-7983-03.9X022
3.9x25 mm	100 pcs	A2-7983-03.9X025
3.9x32 mm	100 pcs	A2-7983-03.9X032
3.9x38 mm	100 pcs	A2-7983-03.9X038
4.2x16 mm	200 pcs	A2-7983-04.2X016
4.2x19 mm	100 pcs	A2-7983-04.2X019
4.2x22 mm	100 pcs	A2-7983-04.2X022
4.2x25 mm	100 pcs	A2-7983-04.2X025
4.2x32 mm	100 pcs	A2-7983-04.2X032
4.2x38 mm	100 pcs	A2-7983-04.2X038
4.2x45 mm	100 pcs	A2-7983-04.2X045
4.2x50 mm	50 pcs	A2-7983-04.2X050
4.8x13 mm	100 pcs	A2-7983-04.8X013
4.8x16 mm	100 pcs	A2-7983-04.8X016
4.8x19 mm	100 pcs	A2-7983-04.8X019
4.8x22 mm	100 pcs	A2-7983-04.8X022
4.8x25 mm	100 pcs	A2-7983-04.8X025
4.8x32 mm	100 pcs	A2-7983-04.8X032
4.8x38 mm	50 pcs	A2-7983-04.8X038
4.8x45 mm	50 pcs	A2-7983-04.8X045
4.8x50 mm	50 pcs	A2-7983-04.8X050
5.5x16 mm	50 pcs	A2-7983-05.5X016
5.5x22 mm	50 pcs	A2-7983-05.5X022
5.5x32 mm	50 pcs	A2-7983-05.5X032
5.5x38 mm	50 pcs	A2-7983-05.5X038
5.5x50 mm	25 pcs	A2-7983-05.5X050
6.3x19 mm	50 pcs	A2-7983-06.3X019
6.3x25 mm	50 pcs	A2-7983-06.3X025
6.3x32 mm	25 pcs	A2-7983-06.3X032
6.3x45 mm	25 pcs	A2-7983-06.3X045
6.3x60 mm	25 pcs	A2-7983-06.3X060

Size Selection

Select the required screw diameter and length according to the materials and components being fastened. Check that the mounting surface accommodates the raised countersunk head and that sufficient thread engagement is available.

Available lengths vary by diameter. Each dimensional configuration has a fixed box quantity as indicated above. The exact drive recess size and recommended pilot hole dimensions are not specified in the supplied catalogue.