• facebook
  • Youtube-fill

Hex bolts DIN933 8.8 grade black oxide

Short Description:

Our factory is professional bolts manufacturing with 19 history.

Our cold forged main products are :

DIN933 Gr8.8 Black full thread

Dia: M10x20 to M10x100

M12x25 to M12x100

M16x30 to M16x120,

M20x40 to M20x120,

M24x50 to M24x150

Our hot forged main products are:

Dai from M20 ,length up to 600mm

Product Detail

Product Tags

Hexagon head bolt details 

●  Material: middle carbon steel 1035, 1045,10B21

●  Head shape: Hexagon head bolt

●  Grade: 8.8

●  Thread: full thread 

●  Application: Industrial building Bridge Railway oil and gas industry, wind energy tower etc

●  Package: Small box, or 25kgs/carton, 36cartons/pallet

●  Delivery: 30-45 days


Factory's photos

Hex bolts din933 standard and dimensions



1.What are hex bolts made of?

Hex bolts are made of carbon steel, alloy steel

2. What is raw material for Grade 8.8 hex bolts?

According to standard, Hex bolts 8.8 are made of middle carbon steel c1035 1045 for small sizes from M6 to M24, alloy steel 40Cr for big sizes from M27 to M36

3. What are bolts coated with?

We can make surface Black oxide , Zp, HDG

4. Can we use our own head mark or customize package for hex head bolts?

Yes, we can customize the headmark and package according to customer’s request

5. How can we make an order for high strength hex head bolts?

Please send inquiry on our page or send E-mail or whatsapp 008615257861940

Shipment by Sea

  • Previous:
  • Next:

  • Related Products