Product Description
DIN 125-B round flat washer (form B), 58 x 105 x 9 mm, Article number 125B581. Property class / material: steel 140 hv, surface finish zinc plated. Round Flat Washer manufactured to DIN 125. 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. Applications: load distribution and locking under bolt heads and nuts in machine building, structural steel, plant maintenance and marine outfitting.
Technical Specifications
- Standard
- DIN 125
- Standard description
- B
- Property class / grade
- HV140
- Class (detailed)
- HV140
- Material hardness
- HV140
- Surface treatment
- Zinc Bright Passivation Fe/Zn P1 (ZPL 3+)
- Surface treatment code
- ZPL
- Diameter
- 56 mm
- Inner diameter
- 58 mm
- Outer diameter
- 105 mm
- Thickness
- 9 mm
- Article number
- 125B581
- Category
- Washers / Plain Washers
Standards & Compliance
- Standard
- DIN 125
- Size / Series
- 58 x 105 x 9 mm
- Material
- Steel 140 HV
- HS Code
- 731822
Product Documentation
More from Bufab
Bufab
DIN 125-B Round Flat Washer, Steel 140 HV, 66 x 115 x 9 mm, Plain
125B66
Bufab
DIN 125-B Round Flat Washer, Steel 140 HV, 74 x 125 x 10 mm, Plain
125B74
Bufab
DIN 125-B Round Flat Washer, Stainless A2, 4.3 x 9 x 0.8 mm
125BA2043
Bufab
DIN 125-B Round Flat Washer, Stainless A2, 5.3 x 10 x 1 mm
125BA2053
Bufab
DIN 125-B Round Flat Washer, Stainless A2, 6.4 x 12 x 1.6 mm
125BA2064
Bufab
DIN 125-B Round Flat Washer, Stainless A2, 8.4 x 16 x 1.6 mm
125BA2084
Bufab
DIN 125-B Round Flat Washer, Stainless A2, 10.5 x 20 x 2 mm
125BA2105
Bufab
DIN 125-B Round Flat Washer, Stainless A2, 13 x 24 x 2.5 mm
125BA2130
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 125B581?
- 125B581 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 125B581.
- What is the HS code for 125B581?
- The customs tariff (HS) code for 125B581 is 731822.
- Who manufactures 125B581?
- 125B581 is a Bufab product in the C-Parts range.
- Is a datasheet available for 125B581?
- Yes — the 125B581 datasheet can be viewed and downloaded on this page.
- What is the minimum order quantity for 125B581?
- The minimum order quantity is 1.
- Is 125B581 available?
- Yes — 125B581 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).