1.EN 14399-3 high strength preloading bolt for steel structure
| Product name |
heavy hex head bolts |
| Standard |
BS EN14399-3 |
| Grade |
grade 8.8 |
| Dia. |
M12~M36 |
| Length |
40~500MM |
| Materials: |
Alloy steel---40Cr / 35VB 35CrMo/42CrMo B7 |
| Available finish |
Dacromet, black oxide, phosphating, electronic galvanized,ect. |
| Bolt Set |
set= 1 bolt + 1 Nut (14399-3 CLASS 8)+ 2 washers(BS-EN 14399-6) |
| Head marking |
HYZ+ HR 8.8 or customers' brand + HR 8.8 |
| Packing |
Carton and wooden pallet or wooden case; barrel+wooden pallet |
| Certification: |
FPC BC1, SGS,BV,ISO, factory testing report. |
2.Drawing and dimension
3.Class of bolt, nut and washer
| Components |
Bolt |
Nut |
Washer |
| Class |
10.9 |
10HR |
F436M |
| 8.8 |
8HR |
F436M |
4.Mechanical properties of Bolt:
| Mechanical Properties |
| Inspection Item |
Test Method |
Standard |
| Ultimate Tensile Strength (Mpa) |
ISO898-1 |
Min. 1040N/mm2 |
| Elongation (%) |
ISO898-1 |
12% |
| Proof Load (kN) |
ISO898-1 |
Min. 212Kn |
| Wedge Loading (kN) |
ISO898-1 |
Min293Kn |
| Hardness (HRC) |
ISO898-1 |
23-32 HRC |
| Impact Strength (J) |
EN ISO148-1 |
42J |
| Suitability Test (Rotation) (o) |
EN14399-2 |
90° |
5.Hardness of bolt set
6.
Main packing way
7.Compan and workshop:
8. Core products:
8.Our Related projects:
FAQ:
Q: HOW TO GET QUOTATION FAST?
A: To get the correct price in 1st time, pls offer correct size(dia and length), finish or coating, price terms,ect.
Q:Are you a factory or trading company?
A: We are professional factory since establised in year 2007, more than 13years experiences.
Q: What is your MOQ?
A: 1 TONS per sizes, same diameter and different length can combine in one ton as trail order.
Q: What about your production capacity?
A: 500 MT/Month for bolts and 500,000pcs per month for shear studs
Q: How about services?
A: we can not promise the lowest prices, what we can offer is good quality, fast delivery, best services before and after selling.
Q: How does your factory do regarding quality control?
A: Our factory own quality system certification ISO9001 and FPC BC1:2012, From materials arrival to finished goods packing , per step will be carried out inspection and testing strictly. per shipment will together with our 3.1 certificate of quality, any problems we will be incharged.
Per Batch goods will be together with 3.1 certificate or the 3rd party inspection report.
Audited Supplier 
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