
Product Description
ISO 7380-2 button head with hex drive and flange, M4 x 8, with flange, Article number K6SFA404008. Made in stainless steel a4. Button Head with Hex Drive and Flange manufactured to ISO 7380-2 with ISO metric (M) thread, coarse pitch, fully threaded. Standard parts to the same standard, property class, dimensions and surface finish are interchangeable between manufacturers; confirm the controlling standard revision, any class-society or application approval, and the mating thread before substitution.
Technical Specifications
- Standard
- ISO 7380-2
- Standard description
- 2
- Type
- Button Head Screw
- Property class / grade
- A4
- Class (detailed)
- A4
- Thread type
- M
- Thread diameter
- 4 mm
- Pitch
- 0.7 mm
- Thread pitch class
- Coarse
- Thread direction
- Right
- Length
- 8 mm
- Thread length
- 8 mm
- Tapping length
- 8 mm
- Threading
- Fully Threaded
- Fully threaded
- Yes
- Head type
- Button Head
- Drive type
- Hex Drive
- Key width (across flats)
- 2.5 mm
- Key depth
- 1.3 mm
- Head height
- 2.2 mm
- Surface treatment
- Plain (no plating)
- Surface treatment code
- PLAIN
- Head Inner Diameter
- 7.2 mm
- Screw Flange Diameter
- 9.4 mm
- Screw Flange Height
- 0.8 mm
- Length
- 8 mm
- Thread standard
- ISO metric (M)
- Article number
- K6SFA404008
- Category
- Bolts and Screws / Socket Head Screws
Standards & Compliance
- Standard
- ISO 7380-2
- Size / Series
- M4 x 8
- Material
- Stainless A4
- Thread Standard
- ISO metric (M)
- HS Code
- 731815
Product Documentation
More from Bufab

Bufab
ISO 7380-2 Button Head with Hex Drive and Flange, Stainless A4-70, M5 x 20, with Flange
K6SFA405020

Bufab
ISO 7380-2 Button Head with Hex Drive and Flange, Stainless A4-70, M5 x 30, with Flange
K6SFA405030

Bufab
ISO 7380-2 Button Head with Hex Drive and Flange, Stainless A4, M8 x 10, with Flange
K6SFA408010

Bufab
DIN 125 Round Flat Washer, Duplex stainless D6 (1.4462), 13 x 24 x 2.5 mm (125-1.4462-0130)

Bufab
DIN 125 Round Flat Washer, Duplex stainless D6 (1.4462), 25 x 44 x 4 mm (125-1.4462-0250)

Bufab
DIN 125-A Round Flat Washer, Stainless EN 1.4841, 13 x 24 x 2.5 mm
125-1.4841-130

Bufab
DIN 125-A Round Flat Washer, Stainless EN 1.4841, 17 x 30 x 3 mm
125-1.4841-170

Bufab
DIN 125-A Round Flat Washer, Steel 140 HV, 1.7 x 4 x 0.3 mm, Zinc Plated
1250171
Technical guides
Catalogue entry last verified: 2026-09-30. A manufacturer datasheet is attached to this entry — confirm application-critical values against it.
Frequently asked questions
- Where can I buy K6SFA404008?
- K6SFA404008 can be ordered from cballast.com as a Bufab catalogue item: request a quotation on this page or email sales@cballast.com, and the order ships worldwide.
- What is the manufacturer part number for this Bufab product?
- The manufacturer part number is K6SFA404008.
- What is the HS code for K6SFA404008?
- The customs tariff (HS) code for K6SFA404008 is 731815.
- Who manufactures K6SFA404008?
- K6SFA404008 is a Bufab product in the C-Parts range.
- Is a datasheet available for K6SFA404008?
- Yes — the K6SFA404008 datasheet can be viewed and downloaded on this page.
- What is the minimum order quantity for K6SFA404008?
- The minimum order quantity is 1.
- Is K6SFA404008 available?
- Yes — K6SFA404008 is available to order: fulfilment is from supplier stock in cBallast's European network, dispatched directly from the warehouse to the customer, with the exact lead time stated in the quotation (reply within 24 hours).
