DIN 9250 Stainless Steel Serrated Safety Washers | S/M Type | HV 350-550 Hardened - XLUIG: Manufacturer of Fasteners, Castings & Custom Components

Detailed back view of DIN 9250 washer, showing symmetrical serrated surface for double-sided mechanical locking.

Stacked view of multiple DIN 9250 stainless steel safety washers, emphasizing bulk and consistent manufacturing quality.

PARÁMETROS DEL PRODUCTO

High-Hardness (HV350-550): Specialized surface hardening optimized for Grade 8.8 and 10.9 high-tensile bolts.
Dual-Action Locking: Combines Mechanical Interlock (radial teeth) with Elastic Preload (conical shape) for 100% vibration resistance.
Marine Grade Options: Available in SUS304 (A2), SUS316L (A4), and 254SMO for extreme corrosion environments.
Engineering Compliance: Fully compliant with DIN 9250 como de NFE 25511 industrial standards.
Full Size Range: M3 to M36 metric sizes in stock for immediate global shipping with MTC 3.1 certification.

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Descripción

Key Feature	Technical Specification	Operational Benefit (Trust Driver)
Double-Sided Teeth	Symmetrical radial serrations on both surfaces.	Maximum friction coefficient against bolt and workpiece.
Conical Design	Engineered disc spring shape.	Maintains preload tension even during structural “settling.”
Surface Hardening	Proprietary process achieving HV 350 – 550.	Guaranteed to “bite” into Grade 8.8 and 10.9 fasteners.
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Dimensiones

Resumen de datos

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M4	4.3	7.0	0.50	0.80	0.08
M6	6.4	10.0	0.70	1.10	0.25
M8	8.4	13.0	0.80	1.30	0.50
M10	10.5	16.0	1.00	1.50	0.85
cURL Too many subrequests.	13.0	18.0	1.10	1.65	1.20
cURL Too many subrequests.	17.0	24.0	1.30	2.00	2.10
cURL Too many subrequests.	21.0	30.0	1.50	2.30	3.50
cURL Too many subrequests.	25.6	36.0	1.80	2.80	6.20
cURL Too many subrequests.	31.0	45.0	2.00	3.20	11.00

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SUS304 (A2)	cURL Too many subrequests.	cURL Too many subrequests.	cURL Too many subrequests.
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254SMO	cURL Too many subrequests.	cURL Too many subrequests.	cURL Too many subrequests.

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Preguntas Frecuentess

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cURL Too many subrequests. Can I use S-series and M-series interchangeably?

S-series (Standard) is designed for regular bolts. M-series (Medium) has a larger outer diameter to reduce surface pressure, making it ideal for elongated holes or softer clamping surfaces.