Hardened self-colour means the part is heat treated but carries no coating — the dark surface is a heat-treatment oxide. Expect no corrosion protection; specify a coating for exposed work.
In stock now: 78 lines; covering Tools (78), Drill Bits (58), Q/BL002 (32), Glass Hole Saws (23), Other Hardware (20); priced from $0.1638 per piece. Every line is sold by the piece — one piece is a valid order.
Related values on the same axis
Anodised
Black
Black Nickel Plated
Black Oxide
Black Oxide (Hardened)
Black Zinc Plated
Blue
Blue-White Zinc Plated
Blue Zinc Plated
Brass Plated
Product families covered
Tools 78
Drill Bits 58
Q/BL002 32
Glass Hole Saws 23
Other Hardware 20
GB/T 14897.3 8
Straight Blades 8
Round Bottom Blades 4
Mini Twist Drill Bits (Kit) 3
Frequently asked
What is Hardened Self Colour?
Hardened self-colour means the part is heat treated but carries no coating — the dark surface is a heat-treatment oxide. Expect no corrosion protection; specify a coating for exposed work.
How much do Hardened Self Colour fasteners cost?
Prices in our catalogue for Hardened Self Colour run from $0.1638 to $14.7425 per piece, depending on diameter, length and material. There is no minimum order.
Is there a minimum order quantity for Hardened Self Colour?
No. Every line is sold by the piece, so you can order a single piece to check the fit and the finish before committing to a production quantity. Your order total is confirmed in the cart, before payment.
What do you stock in Hardened Self Colour?
Hardened Self Colour Fasteners currently covers 78 lines across Tools, Drill Bits, Q/BL002, Glass Hole Saws, Other Hardware, GB/T 14897.3. The full list of sizes, materials and finishes on this page is live — use the filters at the top to narrow it down.
How quickly do you ship Hardened Self Colour fasteners, and can you send them to the EU or Russia?
In-stock lines leave our Foshan warehouse within 24–48 hours. We ship worldwide, including the EU and Russia. For the EU we are appointing a responsible person under Regulation (EU) 2023/988 (GPSR); for EAEU orders the conformity documents are handled with the importing party, who is the applicant of record. We can supply an EN 10204 3.1 mill test certificate, a full technical specification and a packing list with weights on request.