Product Description
DIN 985 hexagon lock nut, M3, Article number 98503SK. Property class / material: steel class 6, surface finish zinc plated, black passivated. Hexagon Lock Nut manufactured to DIN 985 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
- DIN 985
- Property class / grade
- CL.6
- Class (detailed)
- CL.6
- Thread type
- M
- Thread diameter
- 3 mm
- Pitch
- 0.5 mm
- Thread pitch class
- Coarse
- Thread direction
- Right
- Threading
- Fully Threaded
- Key width (across flats)
- 5.5 mm
- Surface treatment
- Zinc Black Passivation Fe/Zn P4 (ZB 3+)
- Surface treatment code
- ZPL BLACK
- Nut Diameter
- 6.01 mm
- Nut height
- 4 mm
- Thread standard
- ISO metric (M)
- Article number
- 98503SK
- Category
- Nuts / Lock Nuts
Standards & Compliance
- Standard
- DIN 985
- Size / Series
- M3
- Material
- Steel class 6
- Thread Standard
- ISO metric (M)
- HS Code
- 731816
Product Documentation
More from Bufab
Bufab
DIN 985 Hexagon Lock Nut, Steel class 6, M4, Zinc Plated
9850401
Bufab
DIN 985 Hexagon Lock Nut, Steel class 5, M4, Zinc Plated
9850401-BULK
Bufab
DIN 985 Hexagon Lock Nut, Steel class 6, M4, with Certificate, Zinc Plated
9850401-S
Bufab
DIN 985 Hexagon Lock Nut, Steel class 6, M4, Zinc-Nickel, Silver
985040ZNTF105
Bufab
DIN 985 Hexagon Lock Nut, Steel class 6, M4, Zinc Plated, Black Passivated (98504SK)
Bufab
DIN 985 Hexagon Lock Nut, Steel class 6, M4, Zinc Plated, Black Passivated (98504ZB3+)
Bufab
DIN 985 Hexagon Lock Nut, Steel class 6, M5, Zinc Plated (9850501)
Bufab
DIN 985 Hexagon Lock Nut, Steel class 6, M5, Zinc Plated (9850501I)
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 98503SK?
- 98503SK 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 98503SK.
- What is the HS code for 98503SK?
- The customs tariff (HS) code for 98503SK is 731816.
- Who manufactures 98503SK?
- 98503SK is a Bufab product in the C-Parts range.
- Is a datasheet available for 98503SK?
- Yes — the 98503SK datasheet can be viewed and downloaded on this page.
- What is the minimum order quantity for 98503SK?
- The minimum order quantity is 1.
- Is 98503SK available?
- Yes — 98503SK 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).