Spring Lock Washer DIN 127B

Helical spring lock washers to DIN 127 Form B in spring steel 65Mn, zinc plated and black. M3–M24. Hardened and tempered to keep spring force under bolt preload in rail and machinery joints.

Standard	DIN 127 Form B
Size	M3 – M24
Material	Spring steel (FSt/C60), 65Mn
Hardness	430–530 HV (≈ HRC 42–50)
Packing	Bulk carton / 5 kg box

• Heat-treated for consistent spring deflection
• Zinc and black finishes from stock tooling
• Ships with material certs on request

MOQ y plazo según medida y acabado — lote típico 15–30 días tras confirmación. Certificado de material 3.1 disponible.