Black oxide coating protection.
Coating thickness 10-5 microns.
Steel grade 4.8 and 8.8.
Suitable for structural applications.
DIN 933 – Bolt M8-M20
DIN 934 – Nuts M8-M20
DIN 125A – Flat washer M8-M20
DIN 127B – Spring washer M8-M20
2025 © Copyright Grace (Pvt) Ltd. All rights reserved. Designed & Developed by D Tech (Pvt) Ltd